Shanghai Huabang Industrial Business Network - Compensation equipment

[Compensation equipment]RPCFC-HV High voltage reactive power automatic compensation controller

2026-6-19 10:04:21

The RPCFC-HV intelligent high-voltage reactive power automatic compensation controller is based on a high-performance 16 bit microprocessor and uses Fourier series decomposition algorithm to obtain all fundamental power data, making it particularly suitable for automatic control of reactive power compensation in power systems with harmonic sources. All components adopt surface mount installation, reflow soldering, and multi pass inspection, ensuring that each RPCF has the same stability and reliability. The RPCFC model has an RS485 interface and standard communication protocol, which can be used as a network instrument.

[Compensation equipment]ZGW()-0.4/�� Low voltage reactive power automatic compensation device

2026-6-19 10:03:49

ZGW() -0.4/�� type low-voltage reactive power compensation device is a low-voltage complete set of equipment designed in accordance with the requirements of the State Grid Construction and the power department, based on the principles of safety, economy, rationality, and reliability. This product is widely used in power distribution systems with a rated frequency of 50Hz, a rated compensation capacity of 30-90kvar, and a rated voltage of 400V. It is used to improve power factor, enhance power supply quality, and reduce energy loss. The XGD-0.4/�� W type low-voltage reactive power compensation device complies with standards such as GB7251.1-1997 "Low Voltage Switchgear and Control Equipment" and VB/T15576-1995 "General Technical Conditions for Low Voltage Reactive Power Static Compensation Devices".

Structural characteristics:
1. Automatically design switching capacitors based on reactive power requirements, using phase separation, grading, and cyclic switching methods, with a maximum of six levels for each item;
2. The controller has a "��+Y" type output, high compensation accuracy, and good effect. The controller can also have distribution monitoring and measurement functions;
3. The switching switch adopts a composite solid-state relay, which has no electric shock zero crossing trigger, no closing surge, no arc generation, fast response speed, and does not generate heat during operation, with a long service life;
4. Adopting a new type of low-voltage self-healing capacitor with internal self discharge function, small size, high reliability, and long lifespan. Power outage control, whose terminal voltage can drop from the peak rated voltage to below 50V within 3 minutes;
5. The device is instantly powered on after a power outage to prevent the capacitor from self inserting;
6. The device can measure the distortion rate of the harmonic voltage at the installation site. When the distortion rate of the harmonic voltage at the installation site exceeds the preset value, the device will sound an alarm;
7. It can be equipped with a remote data communication interface and can achieve remote monitoring and data collection through GPRS module. You can also choose the WDM-1 wireless adapter produced by our company to achieve wireless data reading.

Model meaning

Working and environmental conditions
1. Surrounding air temperature: upper limit+50 ��, lower limit -25 ��;
2. Altitude: �� 2000m;
3. Maximum daily temperature difference: not exceeding 35 ��;
4. Installation conditions; No hazardous gases and vapors, no conductive or explosive dust, no violent vibrations.

[Compensation equipment]RC2000 Harmonic type reactive power automatic compensation controller

2026-6-18 16:06:44

The RC2000 harmonic type reactive power automatic compensation controller is widely used in various compensation equipment, with a high-performance 16 bit microprocessor as the core and Fourier series algorithm to obtain all fundamental power data. It is particularly suitable for compensation control in harmonic sources or filtering and harmonic elimination compensation devices.

At present, the pollution of the State Grid is quite serious, with harmonics present in most situations, which has raised higher requirements for power supply equipment. It is necessary to compensate for reactive power and eliminate harmful harmonics through filtering and harmonic elimination. But the requirements for the components selected in such filtering and harmonic elimination devices are relatively high, especially as compensation control components, the requirements are even higher. Otherwise, the effect of the harmonic elimination filtering device cannot be fully utilized or even achieve the filtering and harmonic elimination function. Some general reactive power compensation devices may encounter situations such as the following during operation, and the anti harmonic capability of the compensator should be considered. 1. The power factor cannot meet the predetermined target. 2. The switching is too frequent. 3. Similar situations occur when replacing the controller.

1. The RC2000 harmonic type reactive power automatic compensation controller adopts a composite real-time harmonic filtering control method. Through real-time measurement by the controller, a comprehensive detection of power grid harmonics is first carried out. Then, the controller analyzes the content of each harmonic and controls the capacitors of the filtering circuit for reactive power compensation and harmonic filtering based on specific harmonic characteristics. Ultimately achieving the filtering goal of overall harmonics. And it can correctly display the power factor in the presence of harmonics and operate reliably.
2. It has harmonic over limit protection function, overvoltage and undervoltage protection function, which improves the service life of the capacitor cabinet. Note: If the components configured in the compensation device can withstand the range, the harmonic protection parameter can be increased to enable the equipment to work normally.
3. It has two working modes: automatic operation and manual operation, making it easy to install and debug.
4. Alarm function: When there are harmonics exceeding the standard, overcompensation, overcompensation, high voltage, low voltage, the passive switch is closed, and the user can connect the alarm to sound an alarm.
5. Equipped with a capacitor discharge time setting, it ensures that each group of capacitors has sufficient time to discharge when repeatedly activated, thereby improving the service life of the contactors and capacitors on the capacitor cabinet.
6. High measurement accuracy of power factor and other grid parameters, with ultra wide range LED display.
7. There are 12 encoding output methods for users to choose from. By combining capacitors of different capacities, different output capacities can be obtained, achieving stepless compensation effect and keeping the target power factor in the optimal state. Optimize switching to reduce the number of switching times, improve compensation accuracy, and prolong the service life of capacitor cabinet components.
8. The human-machine interface is user-friendly and easy to operate, and data is not lost in case of power failure.
9. One click operation. The operation process is very simple and does not require complex parameter settings.
10. Can be ordered as both contact type and non-contact type (dynamic compensation controller), please specify when placing an order. The dynamic compensation controller can dynamically track changes in reactive power in the power grid and quickly compensate, with a response speed of less than 20ms and an output capacity of 20Ma DC12V per branch. Eliminate voltage fluctuations and suppress voltage flicker
11. Real time display of power grid parameters: harmonic total distortion rate, fundamental power factor, total power factor, voltage value, current value, 2-25th current distortion rate, 2-25th voltage distortion rate, reactive power, active power, apparent power, grid frequency, and other parameters.
12. Installation dimensions include: 138 * 138, 162 * 102, 113 * 113, etc.
13. Can achieve communication function.

RC2000 Harmonic Reactive Power Automatic Compensation Controller

Rated working voltage: AC 380V or AC220V
Rated working current: AC 0-5A
Rated operating frequency: 45Hz-65Hz
Display power factor: lag 0.001- lead 0.001
Measure reactive power: 0-9999Kvar
Measurement of active power: 0-9999KW
Undervoltage protection value; AC300V or AC180V
Output contact capacity: AC 220V 7A
Sensitivity: 20mA
Power consumption of the whole machine: 10VA
Dimensions: 144mm × 144mm or 122mm × 122mm
Display: 4-digit red digital tube
Hole size: 138mm × 138mm or 112mm × 112mm
Installation method: Embedded installation with inverted gear accessories fixed or guide rail installation
Connection method: socket terminal screw
Protection level: IP40 shell

[Compensation equipment]JKL58 series reactive power automatic compensation controller

2026-6-18 15:24:42

JKL58 series reactive power automatic compensation controller
Adopting the most advanced modern microcontroller technology, it has a compact structure, strong anti-interference ability, simple operation, and is easy to install and apply. The product is divided into four series and more than ten varieties, with three types of opening sizes, suitable for concentrated and dispersed reactive power compensation in industrial and mining areas, reactive power compensation for line and column transformers, and reactive power compensation for kinetic and static energy.

JK158-5 standard self seeking input limited power factor, delay, overvoltage, and channel setting display

JKL58-7 displays power factor, voltage, current, active power, reactive power, with limited settings for input
JKL58-7DSK real-time dynamic control type response time 20ms-100ms, output 12V 30mA per channel
JKL58-7JKS fast input type power factor below 0.90, input time less than 2S, relay output
JKL58-7DBM outputs in encoding format: 1:2:2:2:2:2:4:4 1:2:4:8

Model Description:

2. Technical performance:
2.1. Easy to operate user interface
2.2. Automatic CT polarity detection
2.3. Power interruption, all input capacitors are cut off
2.4. Data memory, not lost in case of power failure
2.5. Overvoltage protection
2.6. Maintenance of Switching Time Interval
2.7. Low load without oscillation
2.8. Compliant with ZBK44001-89 and DL/T597-96 standards

3. Technical parameters:
3.1. Working voltage: 380V ± 15%
3.2. Input current: 0-5A
3.3. Output power: 3A/250V or DC 30mA/12V
3.4. Environmental power: -10 �� -+50 ��
3.5. Installation size: 72 × 72mm, depth 113mm, opening size: 68 × 68mm (JKL58 series)
120 × 120mm deep 130mm opening size: 113 × 113mm (JKL7F series JKL5F series)

[Compensation equipment]JKL8F-12 series intelligent reactive power automatic compensation controller

2026-6-18 15:24:34

The JKL8F-12 series intelligent reactive power automatic compensation controller can be used in any place that requires reactive power compensation control. All functions of the controller are controlled by a microcontroller, using advanced sampling circuits and algorithms, and have no impact on the testing of harmonics present in the power grid.

2. Main features
2.1. Adopting widescreen LCD display
2.2. Comprehensive control using two physical quantities, power factor and reactive power
2.3. Automatic operation, manual switching, parameter setting, and dynamic parameter display can be achieved through four key operations
2.4. Current input does not need to consider polarity automatic discrimination conversion
2.5. The number of cutting paths 1-12 can be freely selected and set by the user
2.6. When the power is lost after changing the set parameters, the set parameters will not be lost, the data will be permanently saved, and the parameters do not need to be reset when powered on
2.7. It can intuitively display five parameters including power factor, voltage, current, active power, reactive power, etc
2.8. When the grid voltage is below 300V or exceeds the set value, the capacitor bank that has been put into operation will be automatically and quickly (5 seconds) cut off step by step, and the voltage display value will flash
2.9. If the reactive power of the power grid is lower than the threshold for reactive power input, even if COSj is less than the set value, the compensation capacitor bank should not be used to avoid switching oscillation
2.10. When the secondary signal of the current transformer is less than 150mA, the input of the capacitor is blocked, and the already input capacitor group is gradually cut off according to the set delay, and the current display value flashes
2.11. In order to prevent capacitor switching overvoltage caused by incomplete discharge, when the switching action time interval of the same group of capacitors is less than the capacitor discharge time, they will not be put into operation. They can only be put into operation after the time interval is greater than 1 minute

3. Technical data
3.1. Working voltage 380V ± 15%
3.2. Working current 150mA-5A
3.3. Frequency 50Hz
3.4. Relay contact capacity 5A/250V 3A/380V
3.5. The switching and blocking time of capacitors in the same group is greater than 60 seconds
3.6. The input threshold is greater than the set value of the reactive power threshold
3.7. Cut off threshold greater than target COSj value
3.8. Maximum power loss of 15W
3.9. Open space size 113 × 113mm

4. Wiring diagram

5. External dimensions

[Compensation equipment]TS40 series thyristor fast switching switch

2026-6-18 15:24:25

The TS40 series thyristor fast switching switch is used for contactless, high reliability fast switching in dynamic power factor compensation equipment. It can directly replace traditional contactors or ordinary thyristors, and is particularly suitable for situations that require fast and wear-resistant switching. Typical applications include lifting equipment, elevators, and welding equipment.

Compared with traditional switching switches, the TS40 series thyristor fast switching switch has the following advantages:
1. Zero crossing voltage switching, no surge current;
2 complete and compact structures, each consisting of two independent modules containing control circuits, power components, and heat sinks;
3 built-in trigger and protection circuits, full sine wave switching, no harmonic generation to achieve intelligent control of thyristor module;
Compared with ordinary thyristor switch modules, it has low heat generation, no need for axial flow fans to actively dissipate heat, no mechanical wear, no noise during operation, maintenance free components, and a long service life;
5 comes with an auxiliary control power supply, which can be directly connected to various output interfaces of the reactive power compensation controller;
A very short switching time delay of 6 can achieve real-time dynamic compensation of power factor and smooth switching of capacitors;
7 precise zero crossing phase shift control, fast response time, response time less than 15MS, reduced conduction voltage, can reduce switch losses;
Easy to install, similar to the installation of various contactors

Model naming convention:
TS 40 �� D ��
40: System voltage 400V
��: Wiring method: 3: Three phase star connection 2: Three phase corner connection
��: Control compensation capacity: Kvar 30/50/75, etc
��: Control board type S: Active board

Technical parameters of TS40 series thyristor fast switching switch:
Rated working voltage: 220 V~420 VAC
Working frequency: 50/60Hz ± 3Hz
Control voltage: 12VDC/Is=15mA
Circuit conduction loss: 1.9W/A
Module working power consumption: 6VA
Working temperature range: -10 ��~+45 ��
Storage temperature: -40 ��~+85 ��
Humidity: It should be able to withstand the constant humidity test temperature of 40 ��± 2 ��, relative humidity of 93% ± 3%, and test time of 48 hours as specified in GB/T 2423.9
Installation: Vertical installation, crawling distance between upper and lower parts �� 150mm
Wiring: Use the upper M6 ring terminal
Connecting screw torque: 3Nm

Installation steps:
1. Check the design of the equipment to ensure that it can be used in a system with a power supply voltage of 380V or 220V
Remove the fuses of the compensation unit circuit and the secondary control circuit
The quick switching switch of the 3 TS series thyristor should be vertically aligned and ensure sufficient cooling conditions for the device
Press down on the snap spring of the front plastic cover and remove the cover
5. Connect according to the wiring diagram
6. Plastic cover installed in place
Insert the 7 fuses in sequence, and note that the capacitors are now powered on
After the main circuit is powered on, it can be put into operation. Note that the module must be in the off state before powering on

Precautions for use:
Choose the correct module model based on the compensation power to ensure that the module current capacity is within the rated safe usage range
This device is designed for 380V AC systems and should not be used under excessive voltage to avoid permanent module failure. Before putting it into operation, it is necessary to check whether the system power supply voltage is within the working voltage range of the module
When installing the switch inside the cabinet, attention should be paid to ventilation conditions and it should not work in a completely enclosed cabinet
The equipment should not work in environments with corrosive gases, and attention should be paid to the insulation of the wiring in high humidity environments
Before powering on, carefully check the reliability and correctness of the wiring
Before powering on the switch, ensure that the control terminal is in the off state

[Compensation equipment]DJKW95F Multi functional distribution transformer monitoring reactive power compensation device

2026-6-18 15:24:16

The DJKW95-F multifunctional distribution transformer monitoring reactive power compensation device is an integrated device based on CDMA1x or GPRS, which integrates the functions of meter reading concentrator, distribution transformer monitoring terminal, power quality analysis and reactive power compensation device, and uses the same upload channel CDMA or GPRS to transmit real-time information to the upper management system. The promotion and application of this device can reduce duplicate investment, minimize resource waste, significantly reduce line losses in low-voltage networks, and improve the operational efficiency, safety, and refined management level of distribution networks.

The integrated device control cabinet is designed according to industry standards JB/T9663-1999 and DL/T597-1996. The box body is made of stainless steel material, waterproof and ventilated, suitable for outdoor applications, easy to install, and has passed the inspection of the National Electric Power Industry Reactive Power Compensation Complete Equipment Quality Inspection and Testing Center. It has the characteristics of complete functionality, strong anti-interference function, stable and reliable operation, wireless communication, intelligent automatic control, etc.
Adopting three-phase co compensation and separate compensation operation modes, while meeting the compensation of three-phase balanced and unbalanced loads. Accurate compensation, no switching oscillation, multiple switching protections, intelligent control.

Technical parameters of DJKW95F multifunctional distribution transformer monitoring reactive power compensation device
1. Electrical parameters:
Voltage: 380V ± 15%; Current: 0-5A (CT secondary value); Frequency: 50HZ ± 5%.
2. Measurement accuracy:
Voltage:<0.5%; Current:<0.5%;
Active power:<0.5%; Reactive power:<0.5%;
Active electrical energy:<1%; Reactive energy:<2%;
3. Capacitor capacity: 30-60 kVA, to be selected by the customer (can be calculated based on 20-30% of the transformer capacity).
4. Number of capacitor banks: 2-10 banks, capable of automatic cyclic switching.
5. Delay of throwing and cutting actions: 20-60 seconds, with action intervals greater than 300 seconds.
6. Environmental conditions:
(1) Environmental temperature: -20 ° C~+60 ° C
(2) Relative humidity: 20%~90% at 40 ° C
(3) Altitude: �� 2000mm

[Compensation equipment]TBBZ series high-voltage reactive power automatic compensation device

2026-6-18 15:24:08

The TBBZ series high-voltage reactive power automatic compensation device automatically tracks and compensates for reactive power based on the grid and load conditions of the 6KV and 10KV power supply busbars, by controlling the automatic switching of the capacitor bank in the system. The power factor reaches 0.9 or above. Greatly optimize power quality, save losses and reduce consumption, and improve the transmission capacity of the power transmission and distribution system.

Model and meaning of TBBZ series high-voltage reactive power automatic compensation device

Main technical parameters
1. Rated voltage: 6-10kV;
2. Rated frequency: 50Hz;
3. Rated capacity: 100-10000kvar;
4. Number of groups: 1-5 groups;
5. Selection of reactor parameters: suppress closing inrush current, with a reactance rate of 0.1-1%; Suppress more than 5 harmonics with a reactance rate of 6%; Suppress more than 3 harmonics with a reactance rate of 12%;

Working conditions of TBBZ series high-voltage reactive power automatic compensation device
1. Altitude: not exceeding 1000m;
2. Environmental temperature: -25 to+55 ��;
3. Relative humidity: not exceeding 85%;
4. Explosive media are not allowed in the operating area, and the surrounding media should not contain corrosive or insulating gases or conductive media. It is not allowed to be filled with water vapor or have serious mold presence.

[Compensation equipment]TBBWZ Series High Voltage Line Reactive Power Automatic Compensation Device

2026-6-18 15:23:59

The TBBWZ series high-voltage line reactive power automatic compensation device is suitable for installation on outdoor poles in 6-10kV transmission lines. As a means of improving power factor, reducing line losses, and enhancing voltage quality.

working conditions
1. Installation method: Outdoor column installation;
2. Environmental temperature: -40 �� to+50 ��;
3. Altitude: �� 1000m:
4. Wind speed: �� 35m/s;
5. There is no corrosive gas or vapor around, and no conductive or explosive dust.

Main technical parameters of TBBWZ series high-voltage line reactive power automatic compensation device
1. Rated voltage: 6-10kV;
2. Rated frequency: 50Hz;
3. Compensation capacity: 30-900kvar;
4. Secondary control voltage: AC220V;
5. Main circuit power frequency withstand voltage: 42kV/mi;
6. Auxiliary circuit withstand voltage: 2.5kV/min;
7. Lightning impulse withstand voltage: 75kV;
8. Service life: Over 300000 cycles.

Product Features
1. The capacitor has built-in fuses and discharge resistors, which self discharge after power failure to ensure safe operation;
2. Capacitors can be built-in or external, with a capacity preferably configured in a 1:2 ratio, and can achieve three-level switching;
3. It can automatically switch according to voltage, power factor, reactive current, and other methods;
4. Equipped with overvoltage, undervoltage, overcurrent, and phase loss protection functions;
5. The device can be switched automatically or manually, making it convenient for users to debug and operate. Using high-voltage vacuum contactor switch to switch capacitors, it can switch frequently, has the characteristics of long service life, safety and reliability, and maintenance free;
6. Adopting advanced intelligent reactive power compensation controller as the control core, it can display various parameters of the circuit, such as current, voltage, active power, reactive power, power factor, current voltage distortion rate, harmonic content, etc. And save daily on-time data and daily statistical data for more than 200 days, up to a maximum of 800 days. The controller has the functions of "four remote" (telemetry, remote control, remote adjustment, remote signaling);
7. By using on-site and remote communication, real-time and timed calling of various power parameters, modification of control parameters, and remote switching of capacitors can be achieved. Short distance (30-50m) wireless communication can be used to achieve on-site meter reading of handheld computer data;
8. Each capacitor configuration has a minimum capacity of 50kvar and a maximum capacity of 900kvar. It can be configured as one fixed group, one automatic switching group, or two automatic switching groups.

Structural characteristics of TBBWZ series high-voltage line reactive power automatic compensation device
1. Drop out fuse, serving as both short-circuit protection and isolation switch, with the upper end connected to the high-voltage line and the lower end connected to the lightning arrester and box;
2. Lightning arrester, used for absorbing overvoltage during operation;
3. Sealed switch box, with a conduit for incoming lines at the top. Inside the box, there are voltage transformers (used for vacuum switch operation power supply and voltage protection), current transformers, and vacuum contactors. Other controllers, indicator lights, etc. are all installed inside the control box, which is isolated from the high-voltage section;
4. External capacitor type, with an outlet sleeve on the side of the box. The capacitors are distributed on one side of the box and connected to this outlet sleeve. The top of the box is covered with a rainproof cover and equipped with lifting rings for hoisting. The switch box is installed on the platform between two poles, and the control box is fixed on the poles;
5. Sampling current transformer, with a dedicated outdoor open type current transformer installed in phase A of the line.

Selection of compensation capacity and methods
If the power factor of the line before compensation is COS �� 11 and after compensation is COS �� 2, the active power of the line is P, and the compensation capacity Q (kvar)=p(), if P is the active power of the line's frequent load, COS �� 2 can be selected higher. If P is the maximum active power on the line, COS �� 2 can be selected lower. To reduce costs, a fixed compensation set should be installed on the line, with its capacity determined by the capacity of the distribution transformer on the line. The selection principle is not greater than the no-load capacity of the distribution, which is about 5-10% of the distribution transformer. Small capacity transformers with larger total capacity can be selected on the line, so that even if there is no load on the line, it will not be overloaded. If the maximum load on the line is not significantly different from the regular load, a fixed set of automatic switching can be selected. If the difference between the two is significant, two sets of automatic switching with a ratio of 1:2 can be selected, which generally meets the compensation requirements. Fixed compensation can also be installed separately, including drop out fuses, lightning arresters, and capacitors, which should generally be installed behind the load center of the line. The installation location should be selected as follows: if reactive power control is used, it should be installed at the beginning of the line, and more than 70% of the load current should flow through the sampling current transformer. If it is voltage control, it should be installed at the end of the line; Usually located 3/2 to 4/3 from the beginning of the line. Regardless of the type of control, it should be as close as possible to the load center of the line to avoid increasing line loss due to long-distance transmission of reactive power. Voltage control is commonly used in places where the voltage at the end of the line is low. If the voltage is particularly low, it is increased by overcompensation. In this case, it is generally not necessary to install expensive sampling current transformers.

Ordering Instructions
1. The voltage level of the line that needs to be compensated;
2. Provide a statistical table of active power, reactive power, maximum current, minimum current, and average current of the line within one year;
3. The layout diagram of the transformer network for this line, as well as the installed capacity of each transformer;
4. Compensation capacity and compensation method, with built-in or external capacitors;
5. Compensation combination method: automatic or automatic fixed;
6. Single pole installation or double pole installation;
7. Control mode: reactive power, voltage, time;
8. The shell is made of cold-rolled steel or stainless steel.

[Compensation equipment]JKL5F-18 Intelligent Reactive Power Automatic Compensation Controller

2026-6-18 15:23:51

The JKL5F-18 reactive power automatic compensation controller has a maximum of 18 channels and is specifically designed for users with more than 12 channels. It is suitable for large load fine compensation distribution systems, with 13-18 channels that can be set. It has a small size and a large number of channels, and is currently the most output reactive power automatic compensation controller in China.

[Compensation equipment]JKL68-7 Intelligent Reactive Power Automatic Compensation Controller

2026-6-18 15:23:42

The JKL68-7 intelligent reactive power automatic compensation controller is designed specifically for line, column mounted transformers, and end reactive power compensation control. Although it is small in size, it has complete functions and can display power factor, voltage, current, active power, and reactive power. It is suitable for space saving reactive power compensation control devices.

[Compensation equipment]ABB-RVC series power factor controller

2026-6-18 15:23:25

Function:
The ABB-RVC series power factor controller is easy to debug. Fully automatic setting (starting current - C/k, number of activated circuits, switching sequence type, phase shift, special connection). The user-friendly interface is easy to use, and manually setting parameters is convenient and easy to use. The efficient switching strategy combines integrated, direct, and cyclic switching processes, which allows for: controlling power factor when quickly changing loads; Reduce the number of switch changes; Avoid unnecessary switching of intermediate switches; Extend the service life of capacitors and contactors. The maximum ambient temperature rating of 70 degrees is suitable for high temperature environments. Not sensitive to harmonics. Overvoltage and undervoltage protection. Alarm: When the following situations occur, the alarm contactor will be turned on: within 6 minutes after all output circuits are connected, but the power factor cannot reach the target. The internal temperature of RVC rises above 85 degrees. The power supply has lost power.

ABB-RVC series power factor controller

[Compensation equipment]JKW5C4-12 Reactive Power Automatic Compensation Controller

2026-6-18 15:23:16

JKW5C4-12 Reactive Power Automatic Compensation Controller

[Compensation equipment]CGFK type intelligent low-voltage composite switch

2026-6-18 15:23:07

CGFK intelligent low-voltage composite switch is the latest generation of reactive power compensation capacitor switching device, which is an intelligent control execution component and the latest scientific research achievement of our company. This product has significant technical advantages over switching components such as AC contactors, thyristors, or solid-state relays. The main advantage is that after receiving external control signals, the optimal input (cut-off) point can be automatically found through logical judgment. Ensure zero crossing switching and no surge current; Contact points are not sintered; Low energy consumption; No harmonic generation; At the same time, it has voltage anomaly protection. Compared with similar products, this kind of compound switch developed by our company has great progressiveness in technology, especially in safety and reliability. At present, it has passed the test of reactive power compensation set by the Ministry of Power Industry? lt;BR>
Main technical features
This product adopts intelligent control technology and the latest electronic components, suitable for on/off control of AC 380V reactive power compensation capacitors. The basic working principle is to connect the thyristor in parallel with the magnetic holding relay, so that the composite switch has the advantages of thyristor zero crossing switching at the moment of connection and disconnection, and the contactor has the advantage of no power consumption during normal connection. The product mainly has the following technical features: zero crossing switching; The basic working principle of a composite switch is to connect a thyristor switch in parallel with a magnetic holding relay to achieve voltage zero crossing conduction and current zero crossing cutoff, so that the composite switch has the advantages of a thyristor switch at the moment of connection and disconnection, and has the advantage of no power consumption of a contactor switch during normal connection. The implementation method is: when put into operation, the thyristor first crosses the zero contact at the moment of voltage zero crossing, and then the magnetic holding relay is closed and turned on after stabilizing; When cutting out, the magnetic holding relay is first disconnected, and the thyristor delays the zero crossing to disconnect, thereby achieving current zero crossing cut-off.

By using a microcontroller to control switching and intelligently monitor the operation status of thyristors, magnetic holding relays, input power supplies, and loads, it has comprehensive protection functions.

Voltage fault phase loss protection: When the system is supplied with voltage phase loss, the switch refuses to close; If there is a phase loss after connection, it will automatically shut down;
Power voltage phase loss protection: When the working power supply is in phase loss, the switch refuses to close; If there is a phase loss after connection, it will automatically shut down;
Self diagnostic fault protection: The system automatically monitors the operation status of the thyristor and magnetic holding relay. If it fails, it will refuse to close or automatically trip and disconnect;
Power outage protection: In case of sudden power outage after connection, it will automatically trip and disconnect;
No harmonic injection: Due to the fact that the conduction moment is triggered by the zero crossing of the thyristor, the relay will engage and conduct after a delay, and the relay will engage and conduct without generating harmonics.
Low power consumption: Due to the use of magnetic holding relays, the control device only consumes power at the moment of switching action, and does not consume power normally; And due to the low contact resistance of the magnetic holding relay, it does not generate heat, so there is no need to add heat sinks or fans, which reduces costs. Completely avoiding the burning phenomenon of thyristors, while also not causing harm to other electrical appliances running on the same machine, truly achieving the goal of energy conservation and consumption reduction.

Main technical parameters

Rated working voltage	380V,220V/AC±20%	rated frequency	50Hz±5
working power supply	220V	rated current	45/55A
service life	100,000 times	phase number	Three phase (delta connection), single-phase (Y-shaped connection)
Control capacity	��25/30K Var	Circuit power consumption	��1.5VA
Contact voltage reduction	��100mV	Contact voltage withstand	��1600V
response time	��1000ms	on-resistance	��0.003��
Overall dimensions	112×172×123mm
Interval between each connection and disconnection		�� 1 second
Interval between two consecutive connections		�� 120 seconds
starting voltage		DC 4-23V, input impedance: �� 6.8K
Security protection function	Voltage fault phase loss protection	When the system voltage is supplied with phase loss power, the switch refuses to close; If there is a phase loss after connection, it will automatically shut down
	Power supply voltage phase loss protection	When the working power supply lacks phase power, the switch refuses to close; If there is a phase loss after connection, it will automatically shut down
	Self diagnostic fault protection	The system automatically monitors the operating status of thyristors and magnetic holding relays. If they fail, they refuse to close or automatically trip and disconnect
	Power outage protection	When there is a sudden power outage after connection, it will automatically trip and disconnect
	insulation class	Under normal atmospheric conditions, �� 10M ��

Installation and operation methods
Installation position and size
This device is installed on a 380V three-phase four wire distribution network and is used for on/off control of low-voltage reactive power compensation capacitors. Users can install it in the low-voltage reactive power compensation capacitor cabinet or other appropriate locations. Generally, a hanging installation method is used. Please refer to the wiring diagram shown below.

Composite switch selection table

Order model	Capacity of the capacitor group	Compensation method
CGFK40030	5-30Kvar	jointly supplement
CGFK25030	30Kvar	Split compensation (10Kvar per phase)

[Compensation equipment]TSCK thyristor zero crossing switching switch

2026-6-18 15:22:59

The TSCK series thyristor zero crossing switching group is mainly composed of high-power anti parallel thyristors, trigger circuits, protection circuits, heat dissipation devices, overheating protection, connecting copper bars and other components. It has self synchronization function, eliminating the trouble of identifying synchronization and phase sequence in traditional thyristor circuits. It has superior self detection zero crossing signals and is safe and reliable. As a switching device that utilizes a thyristor contactless switch, it can quickly and smoothly switch capacitors in or out based on the precise triggering characteristics of the thyristor.
The TSCK series thyristor zero crossing switching group can quickly track sudden changes in impulse loads, provide closed-loop feedback on the optimal power factor, achieve dynamic reactive power compensation, reduce voltage fluctuations, and achieve the goal of energy conservation and consumption reduction. The capacitor switching for fast dynamic compensation or filtering in 380V~1140V AC systems is an upgraded product in the field of low-voltage reactive power compensation control.

working principle
The triggering circuit takes the voltage at both ends of the thyristor switch and sends it to the optocoupler through a resistor. When the instantaneous value of the AC voltage is equal to the residual voltage of the capacitor, the voltage on the thyristor is zero, and at this time, one negative pulse is output from the optocoupler. This pulse has a width of approximately 150 �� s. After the pulse is reversed and in phase with the input command, the multi harmonic oscillation circuit is activated to output the pulse. Then, the power amplification and isolation circuit are used to trigger the corresponding thyristor. Once triggered, the thyristor remains conductive and the corresponding capacitor is put into operation. Due to the voltage at the back end of the thyristor being close to zero, as long as the input command exists, the trigger pulse train will continue to output, ensuring reliable conduction of the thyristor. When the input command is cancelled, the triggering pulse stops, and the thyristor disconnects when the current crosses zero. It is not until the next input command is issued by the microcontroller that it chooses to restart at the zero voltage point; The excellent thermal conductivity of the heat sink and the addition of the cooling fan greatly improve the heat dissipation effect of the switch. The device has a built-in over temperature protection switch and a temperature switch that controls the automatic operation of the fan, providing good conditions for safe operation.

Technical characteristics of TSCK thyristor zero crossing switching switch

Applicable voltage: three-phase 380VAC~1140VAC ± 10% 50Hz
Fan power supply: 220V AC ± 10% 50Hz
Input signal: Three phases are independently controlled (co compensated or separately compensated), DC 12V control voltage or passive contact input control, etc;
Trigger output: using a pulse transformer with six wide pulse columns for triggering, with stable and reliable performance;
The LED signal light displays the switching status;
Voltage zero crossing input, current zero crossing cutoff;
Zero crossing switching, no surge, no impact, no spark generation, will not cause grid flicker;
Optoelectronic isolation, strong anti-interference ability, fast response speed, can complete the switching action within 20ms.
Adopting fully controllable silicon dynamic switching, high service life, and high reliability.
Allow frequent switching, integrated integration, strong interchangeability, and simple and convenient maintenance;
Equipped with over temperature protection and over temperature lockout function
Built in cooling fan, automatic control of fan start and stop;
Transient voltage suppression protection circuit;
Can be directly used in conjunction with reactive power compensation controllers;

Model Description

TSCK0.48-30-3W meaning explanation: The thyristor zero crossing switching capacitor switch group adopts a three-phase capacitor rated voltage of 480V, a three-phase compensation total capacity of 30kvar, a capacitor wiring method of outer triangle, and a three-phase common compensation switching control method.
TSCK0.28-30-1Y Explanation: The thyristor zero crossing switching capacitor switch group adopts a single-phase capacitor rated voltage of 280V, a three-phase compensation total capacity of 30kvar, and a compensation capacity of 10kvar for each phase of the unit branch. The capacitor wiring method is star zero connection, and the single-phase partial compensation switching control method is used.
TSCK0.28-30-3N meaning explanation: The thyristor zero crossing switching capacitor switch group adopts a single-phase capacitor rated voltage of 280V, a three-phase compensation total capacity of 30kvar, a unit branch phase compensation capacity of 10kvar, a capacitor wiring method of internal triangle, and a three-phase common compensation switching control method.
TSCK0.28-30-1N Explanation: The thyristor zero crossing switching capacitor switch group adopts a single-phase capacitor rated voltage of 280V, a three-phase compensation total capacity of 30kvar, a unit branch phase compensation capacity of 10kvar, a capacitor wiring method of internal triangle, and a single-phase sub compensation switching control method.

Wiring legend

Outline diagram and selection dimensions

[Compensation equipment]JKG10 series reactive power automatic compensation controller

2026-6-18 15:22:50

Product details: JKG10 series reactive power automatic compensation controller

Measurement parameters: single-phase voltage and current, single-phase power factor
Display mode: LED display
Compensation method: Three phase simultaneous compensation
Control strategy: automatic recognition of phase sequence, phase adjustment, cyclic switching
Protection features: overvoltage, undercurrent protection and indication
Switching delay control: the minimum time interval for switching different compensation capacitors, and the minimum time interval for switching the same compensation capacitor
Parameter settings: fixed values for power factor, time, overvoltage, undercurrent, etc
Applicable occasions: Basic balance of three-phase loads
Communication interface: RS-485 interface, Modbus RTU protocol (communication type only)
JKGF10B series
Measurement parameters: three-phase voltage and current, power factor
Display mode: LCD display
Compensation method: three-phase phase separation compensation
Control strategy: automatic recognition of phase sequence, phase adjustment, cyclic switching
Protection features: overvoltage, undercurrent protection and indication
Switching delay control: the minimum time interval for switching different compensation capacitors, and the minimum time interval for switching the same compensation capacitor
Parameter settings: fixed values for power factor, time, overvoltage, undercurrent, etc
Applicable occasions: Unbalanced three-phase load
Communication interface: RS-485 interface, Modbus RTU protocol (communication type only)

[Compensation equipment]STSC series contactless regulator

2026-6-18 15:22:41

1. The STSC series contactless regulator is a capacitor switching switch developed and widely used in recent years, suitable for factories, ports, residential areas, and various applications
Low voltage reactive power compensation for transformer substations, urban and rural power grids.
2. The STSC series contactless regulator is capable of controlling both three-phase and single-phase capacitors, and can be used for both three-phase and three-phase control. It is flexible in combination, easy to install, and reliable in use, and is suitable for our company's PDK type reactive power compensation comprehensive monitoring instrument. 3. The STSC series contactless regulator is composed of bidirectional thyristors (commonly known as thyristors) produced by Siemens AG in Germany, a dedicated zero crossing trigger module, non inductive and capacitive absorption, overheating protection (automatically shuts down when the temperature exceeds 85 degrees), and an efficient heat sink. It achieves voltage zero crossing trigger, no surge current when put into operation, zero crossing current cut-off, no high voltage, no sparks, no vibration when disconnected, low failure rate, and a service life of over 100000 hours. It is currently the ideal product for capacitor switching switches and is maintenance free.

Product specifications and appearance:

model	rated voltage (V/50Hz)	rated current (A)	Maximum control capacitance (Kvar)	Overall dimensions (Length x Width x Height) mm	remark
STSC-55/A	four hundred	fifty-five	Three phase 16Kvar	172x160x130	Three phase dual control
STSC-75/B	four hundred	seventy-five	Three phase 20Kvar	172x125x205	Three phase dual control
STSC-75/BF	four hundred	seventy-five	Three phase 20Kvar	215x125x205	Three phase dual control with fan
STSC-110/CF	four hundred	one hundred and ten	Three phase 35Kvar	235x125x210	Three phase dual control with fan
STSC/D-55/B	four hundred	fifty-five	Single phase 5Kvar	172x125x205	Single phase single control
STSC/D-55/BF	four hundred	fifty-five	Single phase 5Kvar	210x125x205	Single phase single control with fan
STSC/D-75/B	four hundred	seventy-five	Single phase 7Kvar	172x125x205	Single phase single control
STSC/D-75/BF	four hundred	seventy-five	Single phase 7Kvar	210x125x205	Single phase single control with fan
STSC/D-110/CF	four hundred	one hundred and ten	Single phase 10Kvar	235x125x210	Single phase single control with fan

Product wiring:

Product installation size:

STSC series contactless regulator

[Compensation equipment]SMSC No surge regulator

2026-6-18 15:22:33

1�� Overview
SMSC surge free regulator (also known as composite switch) is used for reactive power compensation and capacitor switching in the power grid. It adopts advanced microcomputer control technology to make the thyristor turn on at zero voltage and turn off at zero current, and carries current with contact components. It can ensure that the capacitor switching is free of surge and minimize losses. Can be connected to static and dynamic reactive power compensation controllers, with a response time of �� 20ms. It is recommended to set the controller switching delay time to 1 second.

2�� Model number

3�� Main technical parameters of SMSC surge regulator:

specification	SMSC��400/40	SMSC��400/60	SMSC/D��240/40	SMSC/D��240/60
rated voltage	400V		240V
rated current	40A(20Kvar)	60A(40Kvar)	40A(20Kvar)	60A(40Kvar)
Overvoltage protection	460V		260V (phase voltage)
Undervoltage protection	300V		170V (phase voltage)
Control method	jointly supplement		Divide and supplement
control voltage	12V±20%
control the current	��30mA
Overall dimensions	150×115×105mm
installation dimensions	130×100mm

4�� Usage conditions
Altitude: not exceeding 2000 meters
Environmental temperature: not exceeding -20 to+70 ��
Air humidity: not exceeding 90% at 40 ��
Surrounding environment: No corrosive gases. No conductive dust, no presence of explosive or flammable media
Voltage fluctuation range: rated voltage ± 20%

5�� SMSC surge regulator wiring method

Note: When connected to the static compensation controller, a+12V power supply must be connected in series between the controller COM and the regulator COM (with the regulator connected to+).

[Compensation equipment]PDK III Reactive Power Compensation Comprehensive Measurement and Control Instrument

2026-6-18 15:22:24

Basic functional characteristics of PDK III reactive power compensation comprehensive measurement and control instrument:

1. The application of new AC radio wave analysis technology can ensure the correctness of power grid parameter settings and the stability of operation in harsh environments such as strong interference and strong harmonics.
2. The three-phase power grid has successfully solved the problem of three-phase imbalance compensation through independent detection of phase separation and the combination of "co compensation" and "sub compensation" for switching.
3. The reasonable application of two compensation methods: high current controls the input or removal of compensation capacitors based on the power factor, while low current controls the input or removal of capacitors based on the reactive power.
4. Complete capacitor capacity, C/K value detection, and capacitor protection functions. Provide two working modes, automatic and manual, and offer various capacitor protection functions such as "overvoltage" and "harmonic".
5. Large screen LCD display, fully Chinese menu operation interface, real-time display of power factor, current, and voltage for three phases, as well as preset parameter display.
6. Power grid abnormal alarm: provides text display and alarm relay output for overvoltage, overcurrent, undercurrent, input abnormality, switching oscillation, and excessive inductance, and provides voltage distortion (harmonic) alarm output function.
7. Manual compensation control mode, for application during debugging.

Special Features:
1. Directly display the actual numbers of total power, active power, and reactive power of the current;
2. Display active and reactive electricity (display number multiplied by transformation ratio);
3. The main data can be stored for two months;
4. The main data can be printed on-site for 1-60 days;
5. Measurable harmonics: total voltage, current distortion, odd 3rd to 13th harmonic distortion rate (for phases A, B, and C)
6. 485 communication interface, capable of remote control from a computer.
7. The settings for loop switching, coding switching, and code system selection can be easily achieved through the internal control menu. 16 output channels can be combined arbitrarily, which can meet the setting requirements of almost all users.
8. Capacitor harmonic value over limit protection.
9. It has the function of first switching and then switching to adapt to harmonic control.
10. Reactive power sampling and compensation control method within the full current range.
11. Computer network communication and centralized control management software.
12. Output form: Static: Relay output Dynamic: Level output
13. Scope of application:
a. Environmental temperature: not exceeding -20 ��~+55 ��
b. Environmental humidity: not exceeding 90% at 20 ��
c. Surrounding environment: No corrosive gases, no conductive dust, no presence of explosive or flammable media
d. Altitude: not exceeding 2000 meters

Technical parameters of PDK III reactive power compensation comprehensive measurement and control instrument:

1. Rated working voltage: 3 × 220V/AC 50HZ
2. Current sampling input: 3 × 0-5A/�� 0.1 ��
3. Input threshold: continuously adjustable from 0.85 to 1.0, factory setting value is 0.95
4. Cut off threshold: continuously adjustable from -1.00 to -0.85, factory set value is -1.00
5. Action error: �� 2.5
6. Overvoltage action value: adjustable from 240V to 280V, factory set value is 254V
7. Overvoltage interruption time: �� 1 minute
8. The on/off delay time of the output circuit is adjustable from 5 seconds to 100 seconds statically, with a factory set value of 20 seconds
Dynamic 20 milliseconds to 5 seconds, factory set value is 100 milliseconds
9. Output capacity: Static relay 2A/250VAC
Dynamic level output 60mA, 12VDC
10. Dielectric strength: �� 2500V
Protection level: not less than IP40
11. Whole machine power consumption: �� 10W
Installation and wiring:
1. The appearance of this machine is embedded, with a hole size of 138 × 138mm. The equipment can be fixed on the compensation screen using the fastening accessories attached to this machine.
2. Attention should be paid to the connection of voltage and current sampling signals: the three phases are allowed to be exchanged, and the two wires of the current transformer are allowed to be exchanged, but the connection phases of voltage and current must correspond one-to-one.
3. The connection method of the controller output line: The number on the controller panel should correspond one-to-one with the number of the output terminal and AC contactor.
a�� Compensation capacitor connection: 1111 code is used for cyclic switching
b�� Code switching: If 1222... code is used, it corresponds to the bit weight of the output terminal. For example, the first output is connected to a 15kV capacitor, the second output is connected to a 2x15 capacitor equal to 30kV capacitor, and the third output is also connected to a 2x15 capacitor equal to 30kV capacitor, and so on. If using code 1244..., if the first circuit is connected to a 15 kilovolt capacitor, the second circuit should be connected to a 2 × 15 capacitor equal to 30 kilovolt capacitors, the third circuit should be connected to a 4 × 15 capacitor equal to 60 kilovolt capacitors, and the fourth circuit should still be connected to a 4 × 15 capacitor equal to 60 kilovolt capacitors, and so on.
c�� Special attention should be paid that if 1111... code is selected in the encoding switching, a special "first switching, then power" function can be achieved. For example, if the switching order is 1, 2, 3... 16, then the switching order is 16, 15, 14... 1.
d�� The shared output can control capacitors with a rated voltage of 380 volts, connected in a "��" configuration;
Split compensation output can control capacitors with a rated voltage of 220 volts, connected in a "Y" direction
Power on operation:
1. The device is powered on for the first time. To ensure correct wiring and capacitor configuration, it is recommended to enter the "self check" working state (see next section for details).
2. After the controller is powered on, it automatically enters the "running" state (default working state), and users can enter different working states according to their needs. Please refer to the operation diagram for the operation steps.
3. The PDK III model must first set the change and capacitor capacity (including the capacity of the sub compensation and co compensation capacitors) according to the "Parameter Settings" menu.
4. Other settings such as input and cutoff thresholds, delay and overvoltage settings can also be set separately if the user has special requirements. If there are no special requirements, set according to conventional requirements when leaving the factory.
Self inspection work:
When in operation, press the "ESC" key to enter the "main menu", then press the "��" and "��" keys to move the cursor up and down, select "self-test", and then press�� L�� The key can enter the self-test working state. The self checking method of the measuring and control instrument is to test switching one by one, and its functions include:
1. Check the input of the measuring and controlling instrument. If the current sampling is found to be reversed, the monitoring instrument will automatically adjust it. If a user wiring error is found, the monitoring instrument will display "input abnormal". In self checking, there are two situations where "input abnormality" occurs: A. The phase line is connected incorrectly, and the voltage and current lines do not correspond one-to-one. B�� Large inductive or capacitive loads.
2. Detect the output of the monitoring instrument, check the C/K value of the compensation capacitor, and use it as the basis for controlling switching at low currents. At the end of the self-test, the measuring and control instrument will present a detection report, showing the output terminal number of the capacitor with reduced capacity and open circuit. After the self check is completed, the monitoring device will automatically enter the running state.
Common problems and solutions:
1. The monitor displays "low current": indicating that the total current is small, and the monitor compensates according to the reactive current method. Therefore, there may be a situation where the power factor is small but the reactive current is not large, and the capacitor is not connected. Due to the low reactive power at this time, users do not need to worry about the power factor value being too small.
2. The monitor displays "input abnormality": it should be checked whether the input voltage line corresponds one-to-one with the input current line; There are significant inductive and capacitive loads.
3. The monitor displays "oscillation": indicating that the controller has invested too many capacitors and removed too few capacitors, so it is necessary to reduce the capacity of the capacitors invested in each step.
4. The monitor displays "too inductive": indicating that all capacitors have been put into operation, but the power grid is still inductive, due to a decrease in capacitor capacity or a design capacity of the compensation cabinet that is too small. The capacitor should be replaced or the capacity of the capacitor should be increased for each step.
5. The monitor displays "voltage distortion": indicating severe harmonic distortion on the power grid, and efforts should be made to eliminate it, otherwise it will damage the compensation capacitor.
If the monitoring device is not working properly, you can first follow the operation in Section 12 to restore the factory settings. Generally, it can work normally.

[Compensation equipment]PDK Type II Reactive Power Compensation Comprehensive Measurement and Control Instrument

2026-6-18 15:22:16

The PDK-II reactive power compensation monitor integrates phase separation compensation and centralized compensation, cyclic switching and coding switching, static compensation and dynamic compensation, and can meet the setting requirements of almost all users.
Usage:
1. Environmental temperature: not exceeding -20 ��~+55 ��
2. Environmental humidity: not exceeding 90% at 20 ��
3. Surrounding environment: No corrosive gases. No conductive dust, no presence of explosive or flammable media
4. Altitude: not exceeding 2000 meters

Technical parameters of PDK II reactive power compensation comprehensive measurement and control instrument:

1. Rated working voltage: 3 × 220V/AC 50HZ
2. Current sampling input: 3 × 0-5A/�� 0.1 ��
3. Input threshold: continuously adjustable from 0.85 to 1.0, factory setting value is 0.95
4. Cut off threshold: -1.0 to -0.85 continuously adjustable, factory set value is -1.0
5. Action error: �� 2.5
6. Overvoltage action value: adjustable from 240V to 280V, factory set value is 254V
7. Overvoltage interruption time: �� 1 minute
8. The on/off delay time of the output circuit is adjustable from 5 seconds to 100 seconds statically, with a factory set value of 20 seconds
Dynamic 20 milliseconds to 5 seconds, factory set value is 100 milliseconds
9. Output capacity: Static relay 2A/250VAC
Dynamic level output 60mA, 12VDC
10. Dielectric strength: �� 2500V
11. Protection level: not less than IP40
12. Whole machine power consumption: �� 10W

Installation and wiring:
1. The appearance of this machine is embedded, with a hole size of 138 × 138mm. The equipment can be fixed on the compensation screen using the fastening accessories attached to this machine.
2. Attention should be paid to the connection of voltage and current sampling signals: the three phases are allowed to be exchanged, and the two wires of the current transformer are allowed to be exchanged, but the connection phases of voltage and current must correspond one-to-one.
3. The connection method of the controller output line: The number on the controller panel should correspond one-to-one with the number of the output terminal and AC contactor.

a�� Compensation capacitor connection: 1111 code is used for cyclic switching
b�� Code switching: If 1222... code is used, it corresponds to the bit weight of the output terminal. For example, the first output is connected to a 15kV capacitor, the second output is connected to a 2x15 capacitor equal to 30kV capacitor, and the third output is also connected to a 2x15 capacitor equal to 30kV capacitor, and so on. If using code 1244..., if the first circuit is connected to a 15kV capacitor, the second circuit should be connected to a 2x15 capacitor equal to 30kV capacitor, the third circuit should be connected to a 4x15 capacitor equal to 60kV capacitor, and the fourth circuit should still be connected to a 4x15 capacitor equal to 60kV capacitor, and so on.
c�� Special attention should be paid that if 1111... code is selected in the encoding switching, a special "first switching, then power" function can be achieved. For example, if the switching order is 1, 2, 3... 16, then the switching order is 16, 15, 14... 1.
d�� The shared output can control capacitors with a rated voltage of 380 volts, connected in a "��" configuration;
The shunt output can control capacitors with a rated voltage of 220 volts, connected in a "Y" configuration.
Power on operation:
The device is powered on for the first time. To ensure correct wiring and capacitor configuration, it is recommended to enter the "self check" working state (see next section for details).
After the controller is powered on, it automatically enters the "running" state (default working state), and users can enter different working states according to their needs. Please refer to the operation diagram for the operation steps.
Self inspection work:
When in operation, press the "ESC" key to enter the "main menu", then press the "��" and "��" keys to move the cursor up and down, select "self-test", and then press�� L�� The key can enter the self-test working state. The self checking method of the measuring and control instrument is to test switching one by one, and its functions include:
1. Check the input of the measuring and controlling instrument. If the current sampling is found to be reversed, the monitoring instrument will automatically adjust it. If a user wiring error is found, the monitoring instrument will display "input abnormal". In self checking, there are two situations where "input abnormality" occurs: A. The phase line is connected incorrectly, and the voltage and current lines do not correspond one-to-one. B�� Large inductive or capacitive loads.
2. Detect the output of the monitoring instrument, check the C/K value of the compensation capacitor, and use it as the basis for controlling switching at low currents. At the end of the self-test, the measuring and control instrument will present a detection report, showing the output terminal number of the capacitor with reduced capacity and open circuit. After the self check is completed, the monitoring device will automatically enter the running state.
Common problems and solutions:
1. The monitor displays "low current": indicating that the total current is small, and the monitor compensates according to the reactive current method. Therefore, there may be a situation where the power factor is small but the reactive current is not large, and the capacitor is not connected. Due to the low reactive power at this time, users do not need to worry about the power factor value being too small.
2. The monitor displays "input abnormality": it should be checked whether the input voltage line corresponds one-to-one with the input current line; There are significant inductive and capacitive loads.
3. The monitor displays "oscillation": indicating that the controller has invested too many capacitors and removed too few capacitors, so it is necessary to reduce the capacity of the capacitors invested in each step.
4. The monitor displays "too inductive": indicating that all capacitors have been put into operation, but the power grid is still inductive, due to a decrease in capacitor capacity or a design capacity of the compensation cabinet that is too small. The capacitor should be replaced or the capacity of the capacitor should be increased for each step.
5. The monitor displays "voltage distortion": indicating severe harmonic distortion on the power grid, and efforts should be made to eliminate it, otherwise it will damage the compensation capacitor.
If the monitoring device is not working properly, you can first follow the operation in Section 12 to restore the factory settings. Generally, it can work normally. If the monitoring device is still not functioning properly, please contact our after-sales service department, and we will do our best to serve you.
Features:
1. The application of new AC radio wave analysis technology can ensure the correctness of power grid parameter settings and the stability of operation in harsh environments such as strong interference and strong harmonics.
2. The three-phase power grid has successfully solved the problem of three-phase imbalance compensation through independent detection of phase separation and the combination of "co compensation" and "sub compensation" for switching.
3. The reasonable application of two compensation methods: high current controls the input or removal of compensation capacitors based on the power factor, while low current controls the input or removal of capacitors based on the reactive power.
4. Complete capacitor capacity, C/K value detection, and capacitor protection functions. Provide two working modes, automatic and manual, and offer various capacitor protection functions such as "overvoltage" and "harmonic".
5. Large screen LCD display, fully Chinese menu operation interface, real-time display of power factor, current, and voltage for three phases, as well as preset parameter display.
6. Power grid abnormal alarm: provides text display and alarm relay output for overvoltage, overcurrent, undercurrent, input abnormality, switching oscillation, and excessive inductance, and provides voltage distortion (harmonic) alarm output function.
7. Manual compensation control mode, for application during debugging.
8. The settings for loop switching, coding switching, and code system selection can be easily achieved through the internal control menu. 16 output channels can be combined arbitrarily, which can meet the setting requirements of almost all users.
9. Capacitor harmonic value over limit protection.
10. Reactive power sampling and compensation control method within the full current range.
11. Output form: Static: Relay output Dynamic: Level output.

[Compensation equipment]JKW type reactive power automatic compensation controller

2026-6-18 15:22:07

Features and functions

1. The physical quantity sampled by this controller is reactive power. It adjusts the switching of compensation capacitors based on the reactive power of the power grid, making it suitable for power grids of various capacities, without being limited by the switching of capacitors and changes in sampling current. In use, it generally does not require adjustment and can work stably.
2. The main feature of this machine is the adjustable threshold for undercurrent. When the grid load is low (sampling current<0.5A), users can make appropriate adjustments according to the situation to meet the compensation needs of specific small load conditions
3. The number of output channels can be set to 2-10 as needed.
4. The output circuit adopts a cyclic working mode of "connect first, disconnect first" to ensure that each contactor and capacitor operates the same number of times, extending the fault free working time.
5. It has overvoltage protection function to prevent capacitors from being damaged during operation under overvoltage conditions.
6. "Auto/Manual" is operated by the "Function Selection Key" for easy debugging.
7. Automatically distinguish the positive and negative directions of the incoming phase, making installation and debugging very convenient.

Terms of Use
1. The ambient air temperature ranges from -20 �� to+40 ��.
2. The relative temperature should not exceed 50% at 40 ��; At 20 ��, it does not exceed 90% and does not condense.
3. The surrounding environment is free of corrosive gases, conductive dust, and explosive and flammable media.
4. The altitude fluctuation range shall not exceed 2000-2500m.
5. 2
The voltage fluctuation range shall not exceed+-10%.
6. The vibration frequency range of the installation site is 10-150Hz, and the maximum vibration acceleration is not greater than 5m/s.

Technical parameters:
1. Execution standard: JB/T9663-1999
2. Planting and adjustable range.
a�� Investment threshold: 0.93 (0.9~1.0).
b�� Cut off threshold: -1.0 (adjustable from -1.0 to -0.98).
c�� Undercurrent: When displayed as<0.5A, appropriate adjustments can be made to achieve compensating reactive power.
d�� Delay time: 20S (adjustable from 5S to 100S).
e�� Overvoltage protection:
When the rated voltage is 380V, it is 440V (adjustable from 400V to 460V).
When the rated voltage is 220V, it is 254V (adjustable from 230V to 265V).
3. Basic parameters
a�� Rated working voltage: AC 50HZ 380V, (220V optional).
b�� Current sampling input: �� 5A (AC).
c�� Overvoltage interruption time: not more than 1 minute.
d�� Output relay electric shock capacity: 1.5A (250V).
e�� Sensitivity: 0.1A.
f�� Dielectric strength: 2500V (AC).
g�� Protection level: not less than IP40.
h�� Work status: Continuous work system.

Size and installation
1. The external dimensions and installation dimensions are shown in the diagram.

1. When installing, insert the hook of the installation accessory into the hole on the side of the controller, and turn the screw on the accessory to fix the machine on the screen.
wiring
1. The rated voltage of the AC contactors (J1, J2...) in the following figure is 220V, and their common line is connected to N (neutral line). If a 380V contactor is used, its common line should be connected to phase B or C.
2. When wiring, please pay attention to not connecting the current input line and the voltage input line incorrectly! Otherwise, it will burn down the machine.
3. The sampling current Is must be taken from the total load power line and not from the capacitive screen.
4. Three phase compensation type (380V), the sampling voltage Us and sampling current Is must be taken from different phase power sources.
Single phase compensation type (220V), the sampling voltage Us and sampling current Is must be taken from the same phase power supply.

Panel functions, debugging, and operation
1. Route adjustment: After power on, press the "Function Selection" button to turn on the "Route" indicator light. Press the "+" or "-" adjustment button to display the required route on the digital display. This function is only effective for 25 seconds of power on and automatically locks the route when it expires.
2. Cut off threshold adjustment: Press the "Function Selection" button to turn on the "Upper Limit" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
3. Input threshold adjustment: Press the "Function Selection" button to turn on the "Lower Limit" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
4. Overvoltage protection adjustment: Press the "Function Selection" button to turn on the "Overvoltage" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
5. Delay time adjustment: Press the "Function Selection" button to turn on the "Delay" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital monitor.
6. Automatic operation, shift the gear switch to the "automatic" position, run the indicator light, and the controller automatically switches capacitors.
7. Manual operation, shift the gear switch to the "manual" position. When the "running" indicator light is on in the "running" position, press the "+" or "-" adjustment button to turn on or off the capacitor.
8. If there is no button operation within 20 seconds when the shift switch is turned to the "automatic" position, it will automatically return to the running state, and the "running" indicator light will be on.
9. Memory parameters: The parameters set by the user are saved in memory and will not be lost in case of power failure. To restore the factory settings, press and hold the "Function Selection" button when powering on again.

Usage and Instructions
1. Before powering on, check whether the wiring terminals are connected accurately.
2. The shift switch must be set to "automatic" during operation.
3. The controller is factory preset with control parameters that can be adjusted according to general user requirements, without the need for further adjustments, and can work stably; If users need to make actual adjustments on site, they should refer to the instructions or be guided by technical personnel. Note that the "delay" time should not be less than 15 seconds to protect the capacitor.

Common Fault Analysis
1. The following controllers should be considered as normal phenomena:
a�� The power factor of the power grid is very low, the controller does not operate, and the undercurrent light is on (<0.1). When the load current is sufficient, it will naturally activate.
b�� The power factor of the power grid is very low, the controller does not operate, and the overvoltage light is on. After the voltage returns to normal, it will take action.
c�� The power factor of the power grid is very low, and all lines have been put into operation. It is normal for the input lights to still be on (requiring an increase in capacitance).
d�� The power factor of the power grid is ahead, the reactive power meter reverses slowly, the controller does not cut off, and if the lead value exceeds the set threshold, it will be cut off.
2. The following phenomena are generally wiring errors:
a�� The power factor of the power grid is low, and the controller's input light does not light up and is not activated.
b�� The power factor of the power grid is not low, and the controller's input light is on while all channels are turned on, resulting in the power factor of the power grid leading but not cutting off.
3. The following phenomena can be determined as controller faults:
a�� Put the light on but not put it in.
b�� The overvoltage light is on but not turned off.
c�� The cutting sequence is disorderly and disorganized.
d�� The wiring is correct, the fuse is intact, but the controller is unresponsive and does not operate.
4. If any abnormal phenomenon occurs, please contact the after-sales service department immediately, and we will do our best to serve you.
Precautions
1. A controller with a compensation method of "three-phase" should be used on three-phase symmetrical loads, otherwise it will cause uneven compensation among the phases. For three-phase asymmetric loads, a "single-phase" controller should be selected with phase compensation.
2. The controller with a compensation method of "single-phase" can be used for three-phase loads and can also be used for phase separation compensation of asymmetric loads.
3. If an additional capacitor is added, it will be overcompensated, and if an additional capacitor is added, it will be undercompensated. The reactive power meter rotates quickly, and at this time, the capacity of each capacitor added should be reduced, regardless of the compensation controller.
4. Overvoltage protection adjustment: Press the "Function Selection" button to turn on the "Overvoltage" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
5. Delay time adjustment: Press the "Function Selection" button to turn on the "Delay" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital monitor.
6. Automatic operation, shift the gear switch to the "automatic" position, run the indicator light, and the controller automatically switches capacitors.
7. Manual operation, shift the gear switch to the "manual" position. When the "running" indicator light is on in the "running" position, press the "+" or "-" adjustment button to turn on or off the capacitor.
8. If there is no button operation within 20 seconds when the shift switch is turned to the "automatic" position, it will automatically return to the running state, and the "running" indicator light will be on.
9. Memory parameters: The parameters set by the user are saved in memory and will not be lost in case of power failure. To restore the factory settings, press and hold the "Function Selection" button when powering on again.

Usage and Instructions
1. Before powering on, check whether the wiring terminals are connected accurately.
2. The shift switch must be set to "automatic" during operation.
3. The controller is factory preset with control parameters that can be adjusted according to general user requirements, without the need for further adjustments, and can work stably; If users need to make actual adjustments on site, they should refer to the instructions or be guided by technical personnel. Note that the "delay" time should not be less than 15 seconds to protect the capacitor.

[Compensation equipment]JKLD21 series dynamic reactive power compensation controller

2026-6-18 15:21:58

JKLD21 series dynamic reactive power compensation controller features:

When the load current of the power grid is large (sampling current>0.5A), the sampling physical quantity of the product is power factor, which controls the switching of compensation capacitors according to the size of the power factor of the power grid. Therefore, it is suitable for power grids of various sizes and is not limited by the size of switching capacitors or the ratio of sampling current transformers In use, it generally does not require adjustment and can work stably
When the load current of the power grid is low (sampling current<0.5), the controller automatically enters the undercurrent working state, starts the reactive current detection system, and samples the physical quantity of reactive current to avoid oscillation switching phenomenon
2. It has output channels ranging from 2 to 12, which users can set themselves
3. The output circuit adopts a cyclic working mode of "connect first, disconnect first" to ensure that each contactor and capacitor operates the same number of times, extending the fault free working time 4. It has overvoltage protection function to prevent capacitors from being damaged during operation under overvoltage conditions
5. Equipped with an "automatic/manual" shift switch for easy debugging
6. Automatically distinguish the positive and negative phases of the incoming line, making installation and debugging very convenient
7. Adopting the new generation microcontroller from MICROCHIP company in the United States, it overcomes the disadvantage of electronic circuits being susceptible to interference and works reliably and stably

Usage conditions:
1. The altitude shall not exceed 2000m
2. The ambient air temperature is between -20 �� and+55 ��, and the average temperature within a 24-hour period does not exceed+35 ��
3. The surrounding environment is free of corrosive gases, conductive dust, and explosive and flammable media
4. The relative temperature should not exceed -50% at+40 �� and 90% at+20 ��, without condensation
5. The voltage fluctuation range is plus or minus 20%
6. The vibration frequency range of the installation site is 10-150Hz, and the maximum vibration acceleration is not greater than 5m/S2
Technical Specifications:
1. Investment threshold: 0.95 (adjustable from 0.9 to 1.0)
2. Cut off threshold: 1.0 (adjustable from -0.98 to -1.0)
3. Overvoltage protection:
When the rated voltage is 380V, it is 440V (adjustable from 400V to 440V)
When the rated voltage is 220V, it is 265V (230-265)
4. Delay time: 100ms (adjustable from 20ms to 5000ms).
5. Rated working voltage: AC 50Hz 380V, (220V optional)
6. Current sampling input: �� 5A (AC)
7. Undercurrent: 0.5A (activate reactive current detection system)
8. Sensitivity: 0.1A, dielectric strength: 2500VAC
9. Overvoltage interruption time: not more than 100mS
10. Output capacity: 100mA/15VDC branch.
11. Protection grade: not less than IP40
12. Work status, continuous work system
Size and installation:
1. The external dimensions and installation dimensions are shown in Figure (1).
2. When installing, insert the hook of the installation accessory into the injection hole on the side of the controller, and turn the accessory screw to fix the machine on the screen.
3

JKLD21 Type III Dimensional Drawing

JKLD21 Type II Dimensional Drawing

JKLD21 series dynamic reactive power compensation controller

[Compensation equipment]JKL21A series reactive power compensation controller

2026-6-18 15:21:50

JKL21A series reactive power compensation controller features:

When the load current of the power grid is large (sampling current>0.5A), the sampling physical quantity of the product is power factor, which controls the switching of compensation capacitors according to the size of the power factor of the power grid. Therefore, it is suitable for power grids of various sizes and is not limited by the size of switching capacitors or the ratio of sampling current transformers In use, it generally does not require adjustment and can work stably
When the load current of the power grid is low (when the sampling current is less than 0.5), the controller automatically enters the undercurrent working state, starts the reactive current detection system, and samples the physical quantity of reactive current to avoid oscillation switching phenomenon. When the sampling current is less than 0.1A, the controller enters the automatic blocking state
2. It has output channels ranging from 2 to 12, which users can set themselves
3. The output circuit adopts a cyclic working mode of "connect first, disconnect first" to ensure that each contactor and capacitor operates the same number of times, extending the fault free working time 4. It has overvoltage protection function to prevent capacitors from being damaged during operation under overvoltage conditions
5. Equipped with an "automatic/manual" shift switch for easy debugging
6. Automatically distinguish the positive and negative phases of the incoming line, making installation and debugging very convenient
7. Adopting the new generation microcontroller from MICROCHIP company in the United States, it overcomes the disadvantage of electronic circuits being susceptible to interference and works reliably and stably

Usage conditions:
1. The altitude shall not exceed 2000m
2. The ambient air temperature is between -20 �� and+55 ��, and the average temperature within a 24-hour period does not exceed 35 ��
3. The surrounding environment is free of corrosive gases, conductive dust, and explosive and flammable media
4. The relative temperature should not exceed 50% at+40 �� and 90% at+20 ��, without condensation
5. The voltage fluctuation range is -50% to+20%
6. The vibration frequency range of the installation site is 10-150Hz, and the maximum vibration acceleration is not greater than 5m/S2

Technical parameters of JKL21A series reactive power compensation controller:

1. Investment threshold: 0.95 (adjustable from 0.9 to 1.0)
2. Cut off threshold: -1.0 (adjustable from -0.98 to -1.0)
3. Overvoltage protection:
When the rated voltage is 380V, it is 440V (adjustable from 400V to 440V)
When the rated voltage is 220V, it is 265V (adjustable from 230V to 265V)
4. Delay time: 30s (adjustable from 5s to 100s).
5. Rated working voltage: AC 50Hz 380V, (220V optional)
6. Current sampling input: �� 5A (AC)
7. Undercurrent: 0.5A (activate reactive current detection system)
8. Sensitivity: 0.1A, dielectric strength: 2500VAC
9. Overvoltage interruption time: not more than 1 minute
10. Output relay contact capacity: 1.5A (250V) contact capacity
11. Protection grade: not less than IP40
12. Work status: Continuous work system
Size and installation:
1. The external dimensions and installation dimensions are shown in Figure (1).
2. When installing, insert the hook of the installation accessory into the injection hole on the side of the controller, and turn the accessory screw to fix the machine on the screen.
3

JKL21A Type III Dimensional Drawing

JKL21A Type II Dimensional Drawing

wiring
1. When the rated voltage (sampling voltage) of this machine is 220V, the wiring should follow the diagram (2).
2. When the rated voltage (sampling voltage) of this machine is 380V, the wiring should be as shown in Figure (3).
3. The sampling current Is must be taken from the total load power line and not from the capacitive screen.
4. Please identify the phase accurately when wiring:
When the rated voltage is 380V, the sampling voltage and current must be taken from different phases.
When the rated working voltage is 220V, the sampling current must be taken in the same phase.
5. The current input and voltage input must not be connected incorrectly, otherwise it will burn out the machine.
Panel functions, debugging, and operation
1. Route adjustment: After power on, press the "Function Selection" button to turn on the "Route" indicator light. Press the "+" or "-" adjustment button to display the required route on the digital display. This function is only effective for 25 seconds of power on and automatically locks the route when it expires.
2. Cut off threshold adjustment: Press the "Function Selection" button to turn on the "Upper Limit" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
3. Input threshold adjustment: Press the "Function Selection" button to turn on the "Lower Limit" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
4. Overvoltage protection adjustment: Press the "Function Selection" button to turn on the "Overvoltage" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital display.
5. Delay time adjustment: Press the "Function Selection" button to turn on the "Delay" indicator light, and press the "+" or "-" adjustment button to display the desired value on the digital monitor.
6. Automatic operation, shift the gear switch to the "automatic" position, run the indicator light, and the controller automatically switches capacitors.
7. Manual operation, shift the gear switch to the "manual" position. When the "running" indicator light is on in the "running" position, press the "+" or "-" adjustment button to turn on or off the capacitor.
8. If there is no button operation within 20 seconds when the shift switch is turned to the "automatic" position, it will automatically return to the running state, and the "running" indicator light will be on.
9. Memory parameters: The parameters set by the user are saved in memory and will not be lost in case of power failure. To restore the factory settings, press and hold the "Function Selection" button when powering on again.
Usage and Instructions
1. Before powering on, check whether the wiring terminals are connected accurately.
2. The shift switch must be set to "automatic" during operation.
3. The controller is factory preset with control parameters that can be adjusted according to general user requirements, without the need for further adjustments, and can work stably; If users need to make actual adjustments on site, they should refer to the instructions or be guided by technical personnel. Note that the "delay" time should not be less than 15 seconds to protect the capacitor.
Common Fault Analysis
1. The following controllers should be considered as normal phenomena:
a�� The power factor of the power grid is very low, the controller does not operate, and the undercurrent light is on (<0.1). When the load current is sufficient, it will naturally activate.
b�� The power factor of the power grid is very low, the controller does not operate, and the overvoltage light is on. After the voltage returns to normal, it will take action.
c�� The power factor of the power grid is very low, and all lines have been put into operation. It is normal for the input lights to still be on (requiring an increase in capacitance).
d�� The power factor of the power grid is ahead, the reactive power meter reverses slowly, the controller does not cut off, and if the lead value exceeds the set threshold, it will be cut off.
2. The following phenomena can be determined as controller faults:
a�� Put the light on but not put it in.
b�� The overvoltage light is on but not turned off.
c�� The cutting sequence is disorderly and disorganized.
d�� The wiring is correct, the fuse is intact, but the controller is unresponsive and does not operate.
3. If any abnormal phenomenon occurs, please contact us immediately and we will do our best to serve you.

[Compensation equipment]RPCF3 Reactive Power Automatic Phase Separation Compensation Controller

2026-6-18 15:21:33

Function features of RPCF3 reactive power automatic phase separation compensation controller:

1. By calculating the three-phase fundamental reactive power and switching capacitor capacity, any form of switching oscillation can be avoided, and the power factor of the grid can be displayed correctly in the presence of harmonics.
2. High precision in power factor measurement and wide display range.
3. Fundamental Power Factor (DPF)
4. Real time display of 3-phase voltage, current, active power, reactive power, and apparent power.
5. There are 12 encoding output methods for users to choose from.
6. There are up to 6 compensation options for users to choose from (allocation of total and partial compensation routes)
7. Up to 16 outputs.
8. The human-machine interface is user-friendly and easy to operate.
9. All kinds of control parameters are digitally adjustable, intuitive and easy to use.
10. It has two modes of operation: automatic operation and manual operation.
11. It has overvoltage and undervoltage protection functions.
12. It has power failure protection function to prevent data loss.
13. The input impedance of the current signal is low and less than or equal to 0.01 ohms.
14. The target power factor adjustment range is wide, with a lag of 0.70 to a lead of 0.70.
15. It has communication function and is equipped with backend software. The software interface is shown in the manual.
16. It has harmonic protection function.
17. It can measure and display the distortion rate of 3-phase voltage.
18. Can achieve wireless communication with handheld computers (RPCFC3 type).

RPCF3 Reactive Power Automatic Phase Separation Compensation Controller

[Compensation equipment]RPCF Automatic Compensation Controller

2026-6-18 15:21:24

The RPCF series reactive power automatic compensation controller is based on a high-performance 16 bit microprocessor and uses Fourier series decomposition algorithm to obtain all fundamental power data, making it particularly suitable for automatic control of reactive power compensation in power systems with harmonic sources. All components adopt surface mount installation, reflow soldering, and multi pass inspection, ensuring that each RPCF has the same stability and reliability. The RPCFC model has an RS485 interface and standard communication protocol, which can be used as a network instrument.

Features:
1. Calculating the capacity of the switching capacitor based on the fundamental reactive power can avoid any form of switching oscillation and accurately display the power factor of the grid in the presence of harmonics.
2. High precision in power factor measurement and wide display range.
3. Real time display of total power factor (PF) and fundamental power factor (DPF).
4. Real time display of voltage distortion rate and current distortion rate.
5. There are 12 encoding output methods for users to choose from.
6. Up to 16 outputs.
7. The human-machine interface is user-friendly and easy to operate.
8. All kinds of control parameters are digitally adjustable, intuitive and easy to use.
9. It has two modes of operation: automatic operation and manual operation.
10. It has overvoltage and undervoltage protection functions.
11. It has voltage harmonic over limit protection function.
12. It has power failure protection function to prevent data loss.
13. The input impedance of the current signal is low and less than or equal to 0.01 ohms.
14. Equipped with communication function (MODBUS-RTURS485).
15. The target power factor adjustment range is wide, with a lag of 0.70 to a lead of 0.70.
16. Can communicate with handheld computers.

[Compensation equipment]RPCF3(v2.0) Reactive Power Dynamic Compensation Controller

2026-6-18 15:21:15

RPCF3 (v2.0) Reactive Power Dynamic Compensation Controller

[Compensation equipment]HPFC Power Filter Compensation Controller

2026-6-18 15:21:06

The main functions of HPFC power filter compensation controller are:

HPFC provides the function of an oscilloscope, which can real-time display the waveform of one cycle of voltage and current signals
HPFC provides a harmonic content bar chart display function, which displays graphics, text, and appearance in a clear and intuitive manner
3 HPFC provides system impedance testing function, which can provide reference for users to design LC resonant circuit parameters
HPFC provides RS232 and RS485 hardware protocol communication interfaces, which enable remote viewing of human and electrical parameters and control parameters, modification of control parameters, monitoring of voltage and current signal waveforms, manual control of control port and alarm port status using supporting backend software. Use MODBUS-RTU communication software protocol.
The power parameters that can be measured online by HPFC include 3-phase power factor, voltage, current, active power, reactive power, apparent power, voltage distortion rate, current distortion rate, potential frequency, ambient temperature, transformer current, system impedance, 2-31 harmonic content, 2-31 harmonic content, and 2-31 harmonic initial phase.
6 HPFC can comprehensively judge the output control signal based on the physical parameters such as impedance, power factor, harmonic current, LC resonant circuit, etc. of the system, reducing the harmonic current to the allowable range of the user (or national standard) and increasing the power factor to the preset range of the user.

[Compensation equipment]RC2000F Zero crossing switching phase separation compensation controller (combination of co compensation and sub compensation)

2026-6-18 15:20:58

The RC2000F series intelligent harmonic phase separation compensation controller uses a high-speed and high-performance microprocessor as the core device to simultaneously sample 3-phase voltage and 3-phase current signals, and provides 6 compensation schemes for phase separation (Y) and common compensation (��), as well as 12 switching coding schemes. Users can freely choose by modifying the control parameters, and once the control parameters are modified, they will be permanently saved without losing data in case of power failure. The switching of the capacitor bank is controlled by a combination of fundamental power factor and fundamental reactive power, which ensures stable switching without oscillation and has a certain resistance to harmonic interference. A function that can only be achieved by multiple old models, suitable for reactive power compensation control in AC power systems with unbalanced loads below 45Hz-65Hz and 0.4Kv.

2. Technical data

Rated operating frequency: 45Hz-65Hz Display power factor: lag 0.001- lead 0.01
Undervoltage protection value 170V static output contact capacity per circuit: AC 220V 7A
Sensitivity 50mA dynamic output capacity per channel: DC12V 20mA/branch
Dimensions: RC2000F-12 122mm × 122mm × 99mm Power consumption: 10VA
Dimensions: RC2000F-16 144mm × 144mm × 87mm Display: 4-digit red digital tube Hole size: RC2000F-12 112mm × 112mm Protection level: IP40 shell Hole size: RC2000F-16 138mm * 138mm Connection method: socket terminal screw fixation
Installation Method: RC2000F-12 Embedded Installation Hook Attachment Fixed
Installation method: RC2000F-16 embedded installation with inverted gear accessories fixed or rail mounted

3. RC2000F zero crossing switching phase separation (combined compensation and compensation) compensation controller output code

Generally, traditional controllers only have one encoding method, which is equal capacity (1:1:1...: 1) cyclic switching. The value of the capacitive reactive power to be compensated by the power grid is often continuous and not graded. Due to hardware limitations, the capacitive reactive power provided by the compensation device is usually limited to a few levels. This is a supply-demand contradiction, which is most prominent when the system load is relatively small. Here is an example: For example, a user has a 315KVA transformer with a total compensation capacity of 100Kvar, using a total of 5 20Kvar capacitor banks. The controller uses the commonly used JKG (L) in the market The control physical quantity of this controller is power factor. The target power factor input threshold is lag 0.92, and the cut-off threshold is lag 0.99. At a certain time in the evening, it was found that the system power factor was lag 0.60, the apparent power was 12.5KVA, and the inductive reactive power was 10Kvar. The controller kept switching actions. The reason for this is that the capacity of a single capacitor group (20Kvar) is much larger than the required compensation capacity of the system (10Kvar). When the controller does not input the capacitor group, the power factor of the system is 0.60. According to the control principle of JKG (L) type controller, when the system power factor is lower than the target power factor, the controller must input the capacitor group. After the capacitor group is input, due to compensating for the capacitive reactive power of 10Kvar, the compensated power factor changes from inductive 0.60 to capacitive 0.60 The cut-off power factor threshold of the type controller is a lag of 0.98, so the controller needs to cut off the capacitor bank that has just been put into operation, which repeatedly operates back and forth. This is called switching oscillation in professional terms, and its drawbacks are twofold: firstly, frequent and meaningless switching actions greatly shorten the service life of the capacitor bank and AC contactor. Secondly, although compensation devices are installed in the power system, the expected compensation effect cannot be achieved. Most users will encounter the above phenomena, but the difference is that the situation varies from mild to severe. This is an unavoidable problem for every user. To solve the above problems, we believe that three points can be achieved: firstly, the physical quantity of the controller's switching control must be taken as zero

The practice of matching capacitor capacity to adapt to changes in grid load size is referred to as output coding in this manual. Since it is coding, the size of the capacitor capacity cannot be arbitrarily given, and it should comply with certain rules. This controller provides 11 capacitor capacity ratio size matching schemes, which are:
Pr-1 => 1��1��1��1��1��1 Pr-2 => 1��2��2��2��2��2
Pr-3 => 1��2��4��4��4��4 Pr-4 => 1��2��4��8��8��8
Pr-5 => 1��1��2��2��2��2 Pr-6 => 1��1��2��4��4��4
Pr-7 => 1��1��2��4��8��8 Pr-8 => 1��2��3��3��3��3
Pr-9 => 1��2��3��6��6��6 Pr-10=> 1��1��2��3��3��3
Pr-11=>1:1:2:3:6:...: 6 Pr-12=>Cut in order

We use the RC2000F controller to solve the problem in the above example
Based on the characteristics of the example power grid parameters, we chose the Pr-3 coding scheme. According to the proportional relationship between the total compensation capacity and the capacity of the Pr-3 coding scheme, the first circuit takes 5Kvar, the second circuit takes 10Kvar, the third circuit takes 20Kvar, the fourth circuit takes 20Kvar, the fifth circuit takes 20Kvar, and the sixth circuit takes 20Kvar. There are a total of six capacitor banks. When the power grid requires 10Kvar, the controller only needs to activate the second circuit. When 15Kvar is required, only the first and second circuits need to be activated simultaneously. When 20Kvar is required, only the third circuit needs to be activated. For example, if 1.3 sets of capacitors have already been put into operation and the load changes, and 15KVAR is needed again, the controller will simultaneously issue a command to cut off the first set and put in the fourth set of capacitors, so as to maintain the target power at the optimal state and achieve no compensation effect. The RC2000F can automatically complete the selection of all required input and removal capacities. Due to the use of reactive power to control the switching of capacitor banks in RC2000F, there is no problem of switching oscillation.

[Compensation equipment]KCS1A(HKCS) series reactive power dynamic regulator

2026-6-18 15:20:37

The HKCS series reactive power compensation regulator is an electronic power device module that can quickly switch power parallel capacitors. Its electrical structure mainly consists of high-power reverse parallel connected thyristor modules, isolation circuits, trigger circuits, synchronous circuit protection circuits, and drive circuits, and is equipped with wiring terminals for controlling switch conduction or cutoff, and controlling logic voltages OV (cutoff) and 12V (conduction).

The KCS1A (HKCS) series reactive power dynamic regulator has the characteristics of simple installation, easy maintenance, fast response speed, no surge current during switching, stable and reliable operation without noise, and phase loss protection. It is an ideal component for switching capacitor banks used in reactive power dynamic compensation devices.

Technical Specifications:
Rated voltage: 380V (220V)
Rated frequency: 50Hz
Control capacity: 380V level: 1Kvar~40Kvar 220V level 1Kvar~10Kvar
Usage conditions:
a. Surrounding air temperature: -25 ��~+50 ��, and the average temperature within 24 hours is not higher than+35 ��;
b. When the temperature is+25 ��, the relative humidity can reach 100% in a short period of time;
c. Altitude not exceeding 1000m;
d. The installation site has clean air and no explosive or flammable hazardous materials; No gas sufficient to damage insulation and corrode metals; No conductive dust; No rain or snow invasion or severe fungal presence;
e. There are no obvious instances of excessive harmonic content in the installation site.

[Compensation equipment]RC2000T Fast Dynamic Compensation Controller

2026-6-18 15:20:29

The RC2000T fast dynamic compensation controller is a dedicated reactive power compensation controller for the reactive power generated by the impact load of the power grid. It works in conjunction with a fast contactless switch to respond quickly to rapidly changing loads, stabilizing the power factor of the system in real-time within the user specified range. It can stabilize the voltage at the receiving end and the power grid, improve the quality of power supply, enhance system stability, increase transmission capacity, reduce power loss in the power grid, and improve the output power and operational economic benefits of transformers.

Functional Features
1. Fast response speed, taking up to 11Ms from the moment of reactive power change to outputting a one-step compensation control signal.
2. Using the fast Fourier decomposition algorithm, only the fundamental reactive power is extracted, and the power factor is used as the physical quantity for switching control, so it is insensitive to harmonics.
3. Provide 12 capacitor capacity encoding methods to adapt to the rapidly changing reactive power on site to the greatest extent possible.
4. Providing PT, CT, and metering mode control parameters, users can adapt to single-phase, 3-phase 3-wire, 3-phase 4-wire, and different voltage and current levels of power grid systems by modifying these parameters, with strong adaptability.
5. Providing capacitor capacity monitoring function can prevent the compensation device from operating in a fault state and avoid the expansion of the fault.
6. All control parameters are password protected, and only password holders can modify these parameters.
7. Provide functions such as harmonic protection, undervoltage, and overvoltage protection.
8. Provide remote communication function, allowing users to remotely modify control parameters, remotely control capacitor theft and remote monitoring, and send abnormal events to the user's designated email or mobile phone.
9. Provide the function of manually switching power capacitor banks for easy installation and debugging.
10. Provide a user-friendly interface with simple and intuitive operation.

[Compensation equipment]JKW18 series low-power automatic compensation controller

2026-6-18 15:20:20

The JKW18 series low-power automatic compensation controller uses high-performance microcontrollers as the basic hardware. Due to the full utilization of the high-speed computing power and logical judgment of computers, this controller truly achieves intelligence. It is suitable for automatic adjustment of capacitor compensation devices in low-voltage distribution systems (hereinafter referred to as the controller), so as to achieve the user's predetermined power factor, improve the utilization efficiency of power transformers, reduce line losses, improve the voltage value of power supply, and thus improve economic and social benefits.

2�� Functional Features
1. Calculating the capacitance of switching capacitors based on reactive power has high compensation accuracy.
2. High precision in power factor measurement and wide display range. It can display real-time parameters such as power factor, voltage, current, reactive power, etc.
3. The automatic phase recognition function automatically maintains the voltage signal and current signal at the same terminal.
4. The unique feature of this controller is that it has two working modes: fully automatic (auto foolproof) and manually set. The fully automatic mode is suitable for capacitor banks with a unified capacity configuration, and can cycle without any settings. The manual setting mode is suitable for capacitor bank configurations with different capacities. It can selectively switch the capacitor bank according to the needs of dynamic load changes, without cyclic switching, reducing waiting time and avoiding frequent actions, thus extending the service life of the equipment.
5. The human-machine interface is user-friendly and easy to operate.
6. All kinds of control parameters are digitally adjustable, intuitive and easy to use.
7. It has two working modes: automatic operation and manual operation.
8. It has overvoltage and undervoltage protection functions.
9. It has power failure protection function to prevent data loss.
10. Current signal input impedance low �� 0.01 ��

[Compensation equipment]JKWD5 Reactive Power Dynamic Compensation Controller (Three phase Co compensation Type)

2026-6-18 15:20:11

The JKWD5 reactive power compensation controller is a dynamic controller designed to meet the requirements of a control signal voltage of DC12V and a current of 10-20mA for intelligent composite switches and capacitive non-contact switches; It belongs to the reactive power type controller and solves the shortcomings of the power factor type controller. It can control the switching oscillation of the capacitor bank, balance the stability and compensation effect of the line, and is suitable for power systems with fast load changes and large fluctuations. It dynamically tracks and compensates for changes in reactive power in the power grid, increases the power factor to a predetermined value, and optimizes power quality.

Hole size: 113 × 113mm
Installation method: Tighten the embedded bolt accessories.

[Compensation equipment]JKWD-Z Reactive Power Automatic Compensation Controller (Co compensation, Sub compensation Comprehensive Type)

2026-6-18 15:20:03

The JKWD-Z reactive power compensation controller is based on a high-speed and high-performance digital microprocessor as its core device. It simultaneously samples 3-phase voltage and 3-phase current signals, providing 6 compensation schemes (allocation of co compensation and sub compensation channels), 12 encoding output methods (matching of capacitor bank capacity), and up to 16 circuit outputs. Users design and select compensation schemes based on the actual power load situation, determine the encoding output method, and input the power of the first circuit capacitor for co compensation and the power of the first circuit capacitor for sub compensation separately. The controller can automatically calculate and select the appropriate capacitor group based on the set scheme and parameters, automatically match and complete the switching, avoiding any form of switching oscillation. It displays COS ��, U, I, S, P, Q and frequency in real time, and has multiple alarm and protection functions.

Hole size: 12 circuits, 113 × 113mm; 16 circuits, 138 × 138mm

Installation method: 12 circuits, embedded bolt accessories fastened; 16 times, the embedded reverse gear accessory is tightened

[Compensation equipment]TBBX Type High Voltage Motor Reactive Power Local Compensation Device

2026-6-18 15:19:54

The TBBX type high-voltage motor reactive power local compensation device is connected in parallel with 3, 6, and 10kV high-voltage asynchronous motors to provide reactive current for excitation to the high-voltage motors, improve power factor, reduce the load on distribution transformers, reduce line and transformer losses, and enhance the efficiency of transformer and distribution equipment.

structural type
There are two structural types of on-site compensation devices for high-voltage asynchronous motors:

TBBX1 type
This device is fixedly connected to the motor and shares a switch for switching. The reactive current Ic of the capacitor in the device under operating voltage should not exceed the no-load current l0 of the motor.

TBBX2 type
This device can be separated from the electric motor, and the electric motor runs in parallel with this device during operation. When the motor is disconnected from the power grid, the device connected in parallel with the motor is also separated from the motor through a vacuum switch. In operation, the reactive current lc of the capacitor in the device can be greater than 10, but should not be greater than the reactive current required under the operating voltage of the motor,
L1 · Avoid reactive power backflow. The main wiring is shown in the following figure.

Meter installation
The device is equipped with live displays, electromagnetic locks, and can also be equipped with meters, alarms, etc. according to user requirements.

cabinet body
The device is a metal enclosed cabinet type, with the cabinet body grounded and the shell not electrified.

Performance characteristics
Correct compensation
According to the performance parameters of different motors, appropriate compensation capacity can be set to increase the power factor to above 0.90 and avoid overcompensation.

Limit current flow
When closing, the capacitor branch may generate multiple times the surge current. This device is equipped with a series reactor to limit the closing surge current within a safe range.

Set protection
To ensure the safe and reliable operation of capacitors, this device is equipped with the following protections:

Fuse protection
When a capacitor experiences inter electrode faults and pole to ground short circuits during operation, the fuse can reliably operate and the circuit breaker can be activated through a signaling device.

Open delta voltage protection
The secondary connection of the discharge coil forms an open triangle. When a local fault occurs between the capacitor poles, zero sequence voltage will be generated to drive the relay protection device.

Operation overvoltage protection
Metal oxide lightning arresters are installed between the capacitor poles and the neutral point to ground to suppress the operation overvoltage of the switching switch and prevent it from causing harm to the capacitor.

Suppress self excitation
For TBBX1 type, after the parallel circuit of the motor and capacitor is disconnected from the power grid, self excitation power generation occurs due to the inertia of the motor rotation. The series reactor and capacitor dedicated discharge coil installed in the device can quickly suppress this phenomenon and avoid harm to the circuit electrical equipment.

For TBBX2 type, since the capacitor is already separated from the motor when it is disconnected from the grid, there is no self-excited power generation phenomenon.

Prevent harmonic amplification
In response to the issue of harmonic generation in high-voltage motors, appropriate measures can be taken through measurement and calculation to prevent the amplification of high-order harmonics, ensuring the safe operation of circuit appliances and preventing the power grid from being affected by harmonics.

[Compensation equipment]TBBW Intelligent reactive power compensation series device

2026-6-18 15:19:46

Overview
The TBBW intelligent reactive power compensation series device adopts computer-aided design (CAD) and introduces microcomputer control to intelligently track and compensate for reactive power; It has a reasonable structure and advanced technology; Widely used in low-voltage power grids to improve power factor, reduce reactive power losses, and enhance power supply quality. The product is widely used in low-voltage distribution systems such as industrial and mining enterprises, shopping malls, and rural power grids

Main Features
Small size, easy to install and maintain;
Adopting microcomputer control, with complete functions, reliable performance, automatic compensation mode, and manual switching at will;
Digital display of power factor for intuitive operation status;
Safe to use, with overvoltage protection function. Once the voltage returns to normal, this device will automatically resume normal operation.

Main technical parameters of TBBW intelligent reactive power compensation series device

Usage conditions: altitude �� 2000m. Environmental temperature: -25 ��~+40 ��, humidity: 40 ��, �� 90%, installation inclination �� 5 ��;
Rated voltage priority values: 400VAC, 450VAC, 50Hz;
Rated capacity range: 0.85-1.10 times rated voltage;
The maximum allowable current is 1.30 times the rated current;
Control channels: 2-12 channels; The load varies between 5-100%, and the COS value remains above 0.95. Switching time: 30-90S/time, adjustable;
Working mode: automatic, continuous operation.

model	Rated voltage (KV)	Rated capacity (Kvar)	Rated current (A)	Number of circuits	Dimensions (mm)
model	Rated voltage (KV)	Rated capacity (Kvar)	Rated current (A)	Number of circuits	A	B	H
TBBW0.4-30-3	zero point four	thirty	forty-three point three	four	seven hundred	four hundred and thirty	eight hundred and twenty
TBBW0.4-41-3	zero point four	forty-one	fifty-nine point two	four	seven hundred	four hundred and thirty	eight hundred and twenty
TBBW0.4-48-3	zero point four	forty-eight	sixty-nine point three	four	seven hundred	four hundred and thirty	eight hundred and twenty
TBBW0.4-55-3	zero point four	fifty-five	seventy-nine	four	seven hundred	four hundred and thirty	eight hundred and twenty
TBBW0.4-63-3	zero point four	sixty-three	ninety-one	five	seven hundred	four hundred and thirty	eight hundred and twenty
TBBW0.4-73-3	zero point four	seventy-three	one hundred and five	six	eight hundred and fifty	four hundred and thirty	eight hundred and twenty
TBBW0.4-80-3	zero point four	eighty	one hundred and fifteen point five	six	eight hundred and fifty	four hundred and thirty	eight hundred and twenty
TBBW0.4-88-3	zero point four	eighty-eight	one hundred and twenty-seven	six	eight hundred and fifty	four hundred and thirty	eight hundred and twenty
TBBW0.4-96-3	zero point four	ninety-six	one hundred and thirty-eight point six	seven	eight hundred and fifty	four hundred and thirty	eight hundred and twenty
TBBW2 0.4-30-3	zero point four	thirty	forty-three point three	four	six hundred	four hundred and fifty	one thousand and two hundred
TBBW2 0.4-63-3	zero point four	sixty-three	ninety-one	five	six hundred	four hundred and fifty	one thousand and two hundred
TBBW2 0.4-73-3	zero point four	seventy-three	one hundred and five	six	seven hundred	five hundred	one thousand and two hundred
TBBW2 0.4-96-3	zero point four	ninety-six	one hundred and thirty-eight point six	seven	seven hundred	five hundred	one thousand and two hundred

TBBW intelligent reactive power compensation series device

[Compensation equipment]RXQ,FXQ,DXQ,LXQ series harmonic eliminator

2026-6-18 15:19:37

Overview
The LXQ �� and LXQ (D) �� type harmonic eliminators (referred to as L �� type) installed between the neutral point of the primary winding of the voltage transformer and the ground in the Y0 junction line have been in operation in the power grid for many years. Experience has shown that L �� type has good functions of eliminating the ferromagnetic resonance of the voltage transformer and preventing the melting of single-phase high-voltage fuses. It also has the advantages of adapting to weak insulation coordination of the voltage transformer neutral point, being compact and easy to install. The accessory "Third Harmonic Voltage Limiter" installed at both ends of the open triangle of the residual voltage winding of the voltage transformer (hereinafter referred to as the open triangle) can reduce the voltage drop of the third harmonic current and the unbalanced current of the fundamental wave of the voltage transformer on the harmonic eliminator, and limit it to the satisfaction of the user.
In recent years, due to the adoption of harmonic elimination measures by most transformers, cases of transformer burnout caused by ferromagnetic resonance have become rare. However, an accident caused by incorrect wiring leading to the simultaneous burning of multiphase voltage transformers is frequently seen in 6-35kV power grids. This mistake short circuits the two ends of the voltage transformer's open triangle (in fact, both ends of the open triangle are grounded), and when the single-phase grounding of the power grid is slightly longer, the multiphase voltage transformers will burn out simultaneously. The most effective way to prevent such accidents is to determine whether the voltage transformer delta is short circuited during normal operation of the power grid. Based on years of operation and manufacturing experience, our company has added an open triangle short circuit alarm function to the improved L III type harmonic eliminator accessory (LXQ-F type) to prevent such accidents from happening again. In addition, the L III type harmonic eliminator and its accessories (LXQ-F type) have undergone multiple improvements, and the improved product has more functions in protecting the safe operation of the transformer.

Installing the accessory (LXQ-F type) "Voltage Limit and Short Circuit Alarm" at both ends of the voltage converter delta not only reduces the third harmonic voltage and unbalanced fundamental voltage at both ends of the delta during normal operation of the power grid, but also lowers the voltage at both ends of the harmonic elimination resistor in the primary winding. Tests have shown that the voltage on the harmonic elimination device can be reduced to less than a quarter of its original value. This is more beneficial for voltage transformers with low insulation at the neutral point to operate at low voltage (less than 100 volts) for a long time.

3�� Electrical wiring
The electrical wiring diagram of L III type resistor and its accessories is shown in Figure 1. The resistor is connected between the neutral point of the primary winding of the transformer and the ground; The attachment is connected to both ends of the voltage converter delta, and the AC100V power supply is provided by the secondary winding voltage of the voltage converter. The required power is not greater than 5VA. If a simple attachment is used, only the two supporting wires of the simple attachment need to be directly screwed onto the da and dn ends of the terminal block.

2�� Outline dimension diagram

RXQ, FXQ, DXQ, LXQ series harmonic eliminators

[Compensation equipment]TBBX Low voltage reactive power on-site compensator

2026-6-18 15:19:29

TBBX low-voltage reactive power local compensator is a power-saving product developed using self-healing parallel capacitors. It is installed next to the inductive load and used in parallel with the inductive load to improve the power factor of the distribution system, reduce line loss, increase the supply voltage of the terminal load, and control the power supply potential of the power supply system. This product is widely used for on-site reactive power compensation of three-phase AC asynchronous motors in industrial and mining enterprises, shopping malls, and rural power grids.

Main Features
1. The compensation configuration is flexible, and only one local compensator needs to be configured for one electric motor.
2. Small investment, high return rate. Generally, the electricity cost saved after six months of use can recoup the investment,
The economic benefits are significant.
3. Small size and light weight. Low temperature rise and long working life.
4. Easy to install, can be used as a wall mounted or floor standing, safe and reliable to use.

Main technical parameters

Model and specification TBBX	Rated capacity kvar	Dimensions (mm) Length x Width x Height (L x W x H)
0.4-1-3	one	220×100×235
0.4-2-3	two
0.4-3-3	three
0.4-4-3	four
0.4-5-3	five
0.4-6-3	six
0.4-7-3	seven
0.4-7.5-3	seven point five
0.4-8-3	eight
0.4-10-3	ten	220×100×320 220×100×350
0.4-12-3	twelve
0.4-14-3	fourteen
0.4-15-3	fifteen
0.4-16-3	sixteen
0.4-18-3	eighteen	220×100×420
0.4-20-3	twenty	220×100×420
0.4-25-3	twenty-five	220×140×430
0.4-30-3	thirty	220×140×430
0.4-40-3	forty	300×230×540
0.4-50-3	fifty
0.4-60-3	sixty
0.4-70-3	seventy
0.4-80-3	eighty
0.4-90-3	ninety
0.4-100-3	one hundred

Main technical indicators
1. Usage conditions: altitude of 2000 meters, ambient temperature of -25 ��~+50 ��, relative humidity of 35 ��
When, �� 90%.
2. Rated voltage: 400VAC, 525VAC, 690VAC, 750VAC, 1000VAC.
3. Rated capacity: 1-100kvar.
4. Capacity tolerance: -5~+10%.
5. Loss tangent value: �� 0.2%.
6. Maximum allowable overvoltage: 110% of rated voltage.
7. Maximum allowable overcurrent: 130% of rated current.
8. Insulation: 3kVAC between polar shells for 10 seconds.
9. Self discharge characteristics: After cutting for 3 minutes, the residual voltage drops from 2Un to below 50V.
10. Compliant with standard: JB/T7115-1993

[Compensation equipment]JKG series reactive power automatic compensation controller

2026-6-18 15:19:20

I. Overview
The JKG series reactive power automatic compensation controller is an energy-saving product developed according to the professional standard of ZBK44001-89issued by the Ministry. It can be used in conjunction with various models of reactive power automatic compensation capacitor screens. This machine adopts advanced technology at home and abroad, with complete functions, strong anti-interference ability, stable and reliable operation, precise compensation, reasonable and beautiful appearance design. It is an ideal instrument for balancing reactive power in low-voltage distribution rooms.

2�� Main technical parameters
1. Controller setting value and adjustable range:
a. Input threshold COS ��=0.95, continuously adjustable from 0.90 to 0.98
b. The cut-off threshold COS ��=0.99 (lag) 0.98 (lag) 0.99 (lead) is continuously adjustable.
c. Overvoltage protection 250V/433V 230V/400V-255V/442V continuously adjustable.
d. Undercurrent blockade 300mA 100-400mA continuously adjustable.
e. The delay time is continuously adjustable from 20 ± 5 seconds to 10-90 seconds.
2. Rated working voltage Us AC 220V 50Hz
3. Current sampling input I S AC>5A 50Hz impedance; < 0.2��
4. Number of output circuits: 4, 6, 8, 10 circuits
5. Relay contact capacity: AC 220V 10V, 380V 5A (resistive)
6. Dielectric strength: continuous
7. Work schedule: A controller with automatic phase recognition function can be provided continuously according to user requirements. And the sampling voltage is 380V, 110V, and the controller.

3�� JKG series reactive power automatic compensation controller usage environment
Indoor
Altitude 2500 meters
The ambient temperature shall not exceed 40 �� and shall not be lower than -5 ��
The air temperature should not exceed 50% at 40 �� and 90% at 22 ��
The surrounding environment is free of corrosive gases, conductive dust, and flammable and explosive media.
There is no severe vibration at the installation location
The voltage fluctuation range shall not exceed -10% -+15%.

4�� Reactive power automatic compensation controller

Preface	model	specification	voltage	Overall dimensions (Width x Height x Depth)	Opening size (Width x Height)	Main features
one	JKGF	4. 6, 8 10 circuits	220V	170×110×150	162×102mm	1. Automatic cycle switching 2. The pointer table displays COS ��
two	JKG	4. 6, 8 10 circuits	220V	120×120×120	113×113mm Same as Table 42L6	1. Automatic cycle switching 2. The pointer table displays COS ��
three	JKGFC	4. 6, 8 10 circuits	220V	170×110×150	162×102mm	1. Automatic cycle switching 2. Digital display COS �� 3. Automatic identification
four	JKG2B	4. 6, 8 10 circuits	220V	170×110×150	162×102mm	1. Automatic cycle switching 2. Digital display COS �� 3. Automatic identification 4. Manual switching
five	JKG2C	4. 6, 8 10 circuits	220V	170×110×150	113×113mm Same as Table 42L6	1. Automatic cycle switching 2. Digital display COS �� 3. Automatic identification 4. Manual switching

A controller with automatic phase recognition function can be provided according to user requirements. And controllers with sampling voltages of 380V and 110V.

JKG series reactive power automatic compensation controller

[Compensation equipment]GZK-870 series intelligent reactive power automatic compensation controller

2026-6-18 15:19:11

I. Overview
The GZK series is a fully automatic intelligent passive power compensation controller with no current control. The core part adopts a single-chip microcomputer. Due to the full utilization of the computing power and logical judgment ability of computers, the controller has outstanding features of automatic adaptation and automatic optimization. Various sensitivity parameters can be automatically adjusted and determined within the optimal range based on real-time on-site conditions, demonstrating strong on-site adaptability.
The GZK series has also been fully considered for the convenience of users' installation, use, and on-site maintenance. The digital power factor meter displays real-time factor values, LED signal lights indicate various working states, test function switches are set, and there are no restrictions on the connection between the two ends of the signal line. In short, users can immediately and effectively operate the controller without any on-site debugging after simple wiring.
The GZK series adopts various anti-interference measures and a fully enclosed dust-proof structure, which has the characteristics of small size, strong reliability, beauty and practicality. A capacitor compensation screen that can automatically adapt to various parameters. By coordinating with compensation, it plays a positive role in reducing line losses, improving the voltage quality of users, enhancing the transmission capacity of the power grid, and reducing electricity costs.
2�� Working principle
The input signal is transmitted to the amplification and shaping circuit through a signal transformer, and undergoes A/D conversion after preprocessing. Various sampling quantities are sent to the computer for comprehensive processing and recording, and then control and display commands are issued based on the processing results. Further track and detect the control variables, calculate and analyze the effectiveness of the control, readjust various working parameters suitable for the current situation, and make the next control response. The purpose of compensating reactive power is achieved through continuous sampling, calculation, analysis, recording, and control cycles. (See Figure 1)

3�� Main technical specifications of GZK-870 series intelligent reactive power automatic compensation controller
1. Number of output channels

GZK��870��A	4 routes
GZK��870��B	Route 6
GZK��870��C	Route 8
GZK��870��D	Route 10
GZK��870��A	4 routes
GZK��870��B	Route 6
GZK��870��C	Route 8
GZK��870��D	Route 10

2. Output terminal contact switching capacity: AC 380V, 5A (COS ��=1).
3. Reactive current setting for input and cutoff actions: 4-9% of the full load value (automatically set).
4. Delay in cutting action: 8-250 seconds (automatically adjusted), delay in overvoltage cutting action is 6 seconds.
5. Working mode of feeding and cutting: automatic cycle.
6. Overvoltage protection setting: 437V ± 5V, return voltage 6-9V. (Set at the factory or according to user requirements.)
7. Working conditions:
a. Working power supply: 380V, 50Hz
b. Signal source: Voltage signal 380V (connected to the workpiece power supply inside the machine) Current signal 0.4-5A
c. Environmental temperature: 0 ��~4 ��
d. Relative humidity �� 85%
e. Altitude �� 1000m
f. The working environment is free from flammable and explosive hazardous media, gases and conductive dust that are insufficient to corrode and damage insulation, and there is no severe vibration.
8. Power consumption �� 20W
9 GZK-870 external dimensions: 170 × 110 × 150 (mm), opening size: 162 × 102 (mm)
10. GZK-880 external dimensions: 120 × 120 × 120 (mm), opening size: 113 × 113mm (same as 42L6 type electric meter)
�� Dimensions and installation wiring
The installation of GZK-870 adopts an embedded shell structure, with external dimensions of 170 × 110 × 150mm and structural installation opening dimensions (width × height) of 162 × 102mm. There are installation holes on the side, and the hooks for fastening accessories are inserted into the holes. The controller is fixed on the screen (see Figure 2) and wired (see Figure 3) by turning the screws on the accessories

GZK-870 series intelligent reactive power automatic compensation controller

[Compensation equipment]JKL5 series intelligent reactive power automatic compensation controller

2026-6-18 15:19:02

1�� Overview

The JKL5 series intelligent reactive power automatic compensation controller is a dedicated controller for compensating reactive power in low-voltage distribution systems, which can be used in conjunction with models of low-voltage electrostatic capacitance screens. JKL5A type (with an opening size of 162 × 102mm). JKL5B type (with an opening size of 140 × 102mm) and JKL5C type (with an opening size of 113 × 113mm, the same as the 42L6 instrument) have five specifications of output channels: 4, 6, 8, 10, and 12. This machine adopts advanced technologies from both domestic and foreign sources, and has outstanding advantages such as small size, light weight, complete functions, strong anti-interference ability, stable and reliable operation, and precise compensation. Designed according to the latest national professional standards JB and T9663-1999, and inspected by the National Quality Supervision and Inspection Center for Electric Control and Distribution Equipment, the type test is qualified

2�� Usage conditions
1. Altitude not exceeding 1000M
2. The ambient temperature shall not exceed+40 ��, the average temperature within 24 hours shall not exceed+35 ��, and the minimum ambient temperature shall not be lower than -10 ��.
3. The relative temperature of the air should not exceed 85% (at 25 ��).
4. The surrounding environment is free of flammable and explosive media, and there is no presence of conductive dust or corrosive gases.
5. The voltage fluctuation range of the power grid shall not exceed ± 10% of the rated voltage of the machine.

3�� Functional Features
1. Adopting more advanced international chips and adding power-off memory function. When the power supply of the compensator is cut off, the parameters and programs are automatically memorized and never lost; When re powering, the compensator still operates and controls according to the parameters and programs set by the original user;
2. LED digital display of power factor of the power grid, display range: lag (0.00~0.99), lead (0.00~0.99).
3. The three function setting keys on the panel keyboard can be used to set the numerical display COS �� setting value, delay setting value, and overvoltage setting value. Concise human-machine dialogue makes operation extremely convenient.
4. When the voltage of the power grid exceeds the local overvoltage setting value, the digital COS �� meter automatically converts and displays the current voltage value of the power grid, and automatically cuts off the capacitor banks that have been put into operation step by step.
5. Distinguish the polarity of the sampled current (i.e. automatically identify the polarity) and automatically switch. Bringing great convenience to installation, debugging, and use.
6. When the sampling signal line is open or there is no input sampling current signal, the local digital COS �� automatically displays 0. CC.
7. The output action program adopts a cyclic working mode of first connected, first disconnected, and first connected, as well as encoding working modes of 1, 2, 2, 2, 2, and 1 that are suitable for the action program requirements of the local compensation device.
8. It has manual/automatic conversion. When set to automatic mode, the machine automatically tracks the power factor and reactive current of the power grid, controls the automatic input or output of capacitors, and can achieve manual input or output on the machine when set to manual mode.
There are LED indicators for leading, lagging, overvoltage, and undercurrent. LED prompts for programming input.
10. Strong anti-interference ability, able to withstand interference pulses of 2000V directly input from the power grid, higher than national professional standards.

4�� Main specifications and technical parameters
1. The JKL5 series intelligent reactive power automatic compensation controller has the following specific model specifications (see table below)

model	Output points	Controllable number of capacitor groups	respective notes
JKL5A/B/C	four	four
	six	six
	eight	eight
	ten	ten
	twelve	twelve
Users can choose to place orders	For example: JKL5C-10	12 units

2. Compensator setting value and adjustable range:

Power factor COS �� value 0.97	0.70-0.98 continuous digital setting
Overvoltage protection value 430V	440-440V five level continuous digital setting
Each switching delay is 30 seconds	-90S continuous digital setting
Ensure the current value of the sampling transformer during automatic switching: lower limit �� 150mA, upper limit �� 5A

3. Basic parameters:

Rated working voltage	UBC phase, AC 50Hz 380V ± 10%
current sampling	Phase A �� A AC 0-5A
Output touch capacity point capacity	AC 220V × 5A or 380V × 3A
dielectric strength	Exchange 3000V
working system	continuous work system
weight	About 1.0 kilogram

Installation method
The installation of the JKL5 series is an embedded shell structure with mounting holes on the side. The hooks for fastening accessories are inserted into the holes, and the controller is fixed to the screen by turning the screws on the accessories.
1. The external dimensions of JKL5A model are 170 × 110 × 127mm, with an installation opening of 162 × 102mm (width × height) and an embedded depth of 127mm
2. The external dimensions of JKL5B model are 147 × 110 × 127mm, with installation openings of 140 × 102mm (width × height) and an embedded depth of 127mm
3. The JKL5C model adopts the 42L6 series instrument structure, with external dimensions of 120 × 120 × 80mm, installation openings of 113 × 113mm, and an embedded depth of 80mm

Wiring method
1. Controller voltages U1 and U2 are connected to phases B and C. (See Figure 1 and Figure 2)
2. The sampling current terminals I1 and I2 must be taken from the secondary of the A-phase current transformer of the total load (main cabinet), and must not be taken from the capacitor screen.
3. COM serves as the common source for the 1-10 sets of internal relays at the controller output terminal, and the voltage of the J coil of the AC contactor is 220V.

JKL5 series intelligent reactive power automatic compensation controller