Shanghai Huabang Industrial Business Network - rheostat

[rheostat]BZQ New type of motor driven sliding line variable resistor

2026-6-19 11:51:13

The BZQ new motor drive sliding line variable resistor consists of two parts, namely the sliding line variable resistor and the speed regulating motor. The motor speed regulation range is 0-250 revolutions per minute. The panel is equipped with a load terminal digital ammeter and a speed regulating knob.

optional range
Current: 0.1-200A Voltage: 6-380V
Resistance value: 0.03-3.8K �� Power: 0.05-20KW

BZQ new motor drive sliding line variable resistor external dimensions (reference)

power	A	B	C
10-20KW	one thousand and one hundred	six hundred	six hundred
2.5-7KW	one thousand and one hundred	five hundred and fifty	five hundred
1.8-2KW	one thousand and one hundred	five hundred	four hundred
1.4-1.8KW	eight hundred	four hundred and fifty	three hundred and fifty
0.24-1KW	six hundred	four hundred	three hundred

Current, Resistance, Power Range Table (Reference)

current	resistance	power
0.1A	24K��-192K��	240W-2KW
0.5A	4K��-32K��	1KW-8KW
1A	1K��-8K��	1KW-8KW
2.5A	230��-1.84K��	1.4KW-11KW
5A	75��-600��	1.8KW-15KW
7.5A	24��-190��	1.35KW-10KW
10A	18��-140��	1.8KW-14KW
15A	7��-56��	1.6KW-12.6KW
20A	5��-40��	2KW-16KW
25A	4��-32��	2.5W-20KW
50A	2��-8��	5KW-20KW
75A	1.25��-2.5��	7KW-14KW
100A	1��-2��	10KW-20KW
150A	0.625��	14KW
200A	0.5��	20KW

BZQ new motor drive sliding line variable resistor

[rheostat]ZB series rotary rheostat

2026-6-19 11:45:56

Purpose:
The ZB series rotary rheostat is suitable for voltage and current control in electrical equipment below 500 volts, as well as for motor excitation adjustment, speed regulation, load, etc.

Structure:
The ZB series rotary rheostat consists of resistance elements and conversion devices. The resistance elements are made up of resistance wires wound on ceramic tubes or separately hollow wound into spiral elements with insulating ceramic pads fixed in iron boxes. The rotating part is exposed on the surface of the iron box, and the panel is made of asbestos cement board or glass fiber insulation board.

ZB series rotary rheostat

[rheostat]BP1-3 series frequency sensitive variable resistor

2026-6-19 11:45:48

BP1-3 series frequency sensitive rheostat

[rheostat]BP400 Stable Varistor

2026-6-19 11:45:39

BP400 Stable Varistor

purpose
This variable resistor is specifically designed for use with ZPG61000 multi head DC arc welding machines and welding machines with a power supply voltage not exceeding 60 volts. By connecting the variable resistor to the welding circuit without changing the voltage at the end of the arc welding generator, the required step-down external characteristics of the arc power source can be obtained. Varistors can be segmented to adjust welding current.

structure
The variable resistor has five segments of resistance, which can be connected to the arc welding machine circuit through a knife switch. By combining the knife switches, the required welding current value can be achieved. The variable resistor resistor element is wound with Xinkang copper tape on a ceramic resistor skeleton, and connected to the switch holder and terminal post of the panel through a conductive busbar.

[rheostat]BX8 series sliding line variable resistor

2026-6-19 11:45:31

BR>
series sliding line variable resistor features

} The resistance wire is oxidized, the resistance value is continuously adjustable, the power is high, the installation is easy and stable, and the appearance is beautiful;
Application: Applied to experimental circuits for AC 50Hz, rated voltage 500V, or DC not exceeding 440V, teaching demonstrations, power generation, and DC motor excitation speed regulation.<50Hz Usage environment: rated power temperature (+70 ��);
;

Structural form: Wiring terminal leads out, both single tube and double tube can be used;

BX8-21~27 can produce 60A, 100A, 120A specifications

external dimensions and main technical indicators

[rheostat]BL7 series excitation variable resistor

2026-6-19 11:45:23

Purpose:
The BL7 series excitation variable resistor is suitable for manually adjusting voltage or current in electrical equipment circuits with a voltage not exceeding 500 volts, adjusting excitation voltage in electrode excitation circuits, and regulating the speed of DC motors.

Structure:
This variable resistor is composed of ceramic resistance elements and conversion devices, both installed in anti drip box shells. The resistance elements are made by winding resistance wires around spiral tubes or plate shaped components. The connecting contacts of the conversion device are installed on the insulation board. The protective box shell is made with ventilation holes for air convection, and the contact parts are adjusted by rotating the rear wheel with bridge contacts.

Ordering Notice:
Variable resistor model, power, total current, total resistance, divided into several sections, current value of each section, resistance value, and divided into several sections for each section.

[rheostat]BL91 series marine excitation variable resistor

2026-6-19 11:45:14

BL91 series marine excitation variable resistor

Purpose:
The BL91 series marine excitation variable resistor is suitable for use in ship electrical equipment circuits with a DC voltage not exceeding 380 volts. It is used for voltage adjustment and regulating the speed of DC motors in power generation excitation circuits.

Structure:
This variable resistor is composed of ceramic resistance elements and conversion devices, both installed in a drip proof box shell. The resistance elements are made by winding resistance wires around threaded ceramic tubes, and the panel is made of glass fiber insulation board with conversion equipment. Bridge contacts are used to change the resistance value by hand wheel. The box type is drip proof, and its structure meets the electrical requirements of ships. The resistor should be installed vertically with the anti bottom cover above.

Ordering Notice:
1. Product model name, resistance value, current value or number, and quantity;
2. Purpose, speed regulation or pressure regulation;
3. Special requirements: Total power, total resistance, total current, divided into several segments, each segment's current, and resistance value need to be provided.

[rheostat]BL9 series magnetic field rheostat

2026-6-19 11:45:06

BL9 series magnetic field rheostat

[rheostat]BLP1 series electric drive excitation variable resistor

2026-6-19 11:44:58

purpose
The BLP1 series electric drive excitation variable resistor is suitable for long-distance operation in industrial and mining enterprises, power stations, and power plants, or for automatic control through other auxiliary components to provide voltage adjustment and DC motor speed regulation for circuits with excitation voltage not exceeding 500 volts.

structure
·The BLP1 series electric drive excitation variable resistor is composed of a resistance element and a conversion device mounted on an insulation panel. The resistance element is formed by winding a resistance wire around a threaded tube ceramic skeleton.
·The conversion device consists of two parts: electric transmission and manual transmission. Electric transmission is adjusted by a 220 volt or 110 volt 40w1800 rpm DC servo motor through a variable speed gear transmission brush. For manual transmission, simply press the operating handwheel with force to disengage the coaxial variable speed gear and drive the brush for adjustment. The manual part is used for timely maintenance in case of motor failure.

Technical parameters of BLP1 series electric drive excitation variable resistor

model	Total resistance range (��)	Rated power (KW)	height	weight	series
model	Total resistance range (��)	Rated power (KW)	height	weight	Current �� 30A	Current �� 50A
BLP1-2	2.4��7K	two	three hundred and eighty	sixty	one hundred	ninety-four
BLP1-4	2.3��14K	four	four hundred and fifty-eight	seventy	one hundred	ninety-four
BLP1-6	2.8��21K	six	five hundred and thirty	eighty-five	one hundred	ninety-four
BLP1-8	2.1��28K	eight	six hundred and eight	ninety-five	one hundred	ninety-four
BLP1-10	2.8��35K	ten	six hundred and eighty	one hundred and ten	one hundred	ninety-four

Ordering Instructions
Variable resistor model, power, total current, total resistance, divided into several sections, current value, resistance value, and number of stages for each section.

[rheostat]BX2,BX3 series sliding line variable resistor

2026-6-19 11:44:49

BX2, BX3 series sliding line rheostat

[rheostat]BX4,BX6 series sliding line variable resistor

2026-6-19 11:44:41

BX4, BX6 series sliding line rheostat

[rheostat]BP300 type stable variable resistor

2026-6-19 11:44:33

Product Name: BP300 Stable Varistor
Product Series: Stable Variable Resistors
Product Model: BP300 Stable Varistor

purpose
This variable resistor is specifically designed for use with ZPG61000 multi head DC arc welding machines and welding machines with a power supply voltage not exceeding 60 volts. By connecting the variable resistor to the welding circuit without changing the voltage at the end of the arc welding generator, the required step-down external characteristics of the arc power source can be obtained. Varistors can be segmented to adjust welding current.

structure
The variable resistor has five segments of resistance, which can be connected to the arc welding machine circuit through a knife switch. By combining the knife switches, the required welding current value can be achieved. The variable resistor resistor element is wound with Xinkang copper tape on a ceramic resistor skeleton, and connected to the switch holder and terminal post of the panel through a conductive busbar.

[rheostat]Z-6.5,CB-6.5 type excitation variable resistor

2026-6-19 11:44:22

Z-6.5, CB-6.5 excitation variable resistor

Product Name: Z-6.5, CB-6.5
Product series: Excitation variable resistor
Product models: Z-6.5, CB-6.5

[rheostat]Z-60 type excitation variable resistor

2026-6-19 11:44:14

Z-60 type excitation variable resistor

[rheostat]BL1 series excitation variable resistor

2026-6-19 11:44:05

BL1 series excitation variable resistor

Name: BL1
Excitation variable resistor
Model: BL1

[rheostat]BX series sliding line variable resistor

2026-6-19 11:43:57

BX series sliding line variable resistor

[rheostat]BX7 series sliding line variable resistor

2026-6-19 11:43:49

Model: BX78
Features: The resistance wire has undergone oxidation treatment, with continuously adjustable resistance value, high power, easy and stable installation, and beautiful appearance;
Application: Used for experimental circuits with AC 50Hz, rated voltage of 500V or DC not exceeding 440V, teaching demonstrations, as well as power generation and DC motor excitation speed regulation,
Operating environment: rated power temperature (+70 ��);

Structural form: Wiring terminal leads, both single tube and double tube can be used;

BX7-21-24 can produce 60A, 100A, and 120A specifications

External dimensions and main technical indicators

Specifications

Rated current (A)/resistance value (��)

Dimensions (mm)

model

original
type
number

zero point one

zero point two

zero point three

zero point five

zero point eight

one

one point five

two

two point five

three

three point five

four point five

six

seven

eight

ten

thirteen

fifteen

twenty

twenty-two point five

thirty

fifty

pipe
path

long

wide

tall

BX7-11

RXH-A8

1.9K

1.1K

six hundred

two
five
0

one
four
0

one
0
0

five
0

three
five

two
three

seventeen

ten

six point five

four point seven

three

two point five

one point five

one point one

zero point seven five

zero point five five

zero point four

zero point one three

single
Tube (64)

two
six
five

nine
0

one
three
five

BX7-12

RXH-A10

2.6K

1.5K

eight hundred

three
five
0

one
nine
0

one
four
0

seven
0

four
five

three
two

twenty-three

fifteen

nine

six

four

three point five

two

one point five

one

zero point seven five

zero point five five

zero point one nine

three
two
five

BX7-13

RXH-A12

8.7K

3.2K

1.9K

four
two
0

two
four
0

one
eight
0

nine
0

five
five

four
0

thirty

eighteen

twelve

eight

five

four point five

two point five

one point nine

one point three

zero point nine five

zero point seven

zero point two four

three
seven
0

BX7-14

RXH-A14

10.5K

2.3K

1.2K

five
0
0

two
nine
0

two
one
0

one
0
0

seven
0

five
0

thirty-five

twenty-two

fifteen

ten

six point five

five point five

three

two point three

one point five

one point one

zero point eight three

zero point two eight

four
two
0

BX7-15

RXH-A16

12.5K

4.5K

2.7K

1.4K

six
0
0

three
four
0

two
five
0

one
two
0

eight
0

five
five

forty

twenty-five

eighteen

twelve

seven point five

six point five

three point five

two point six

one point eight

one point three

zero point nine seven

zero point three two

four
seven
0

BX7-16

RXH-A18

14.5K

1.6K

seven
0
0

three
nine
0

two
eight
0

one
four
0

nine
0

six
five

forty-eight

thirty

twenty

fourteen

eight point five

seven point five

four point two

three

two

one point five

one point one

zero point three six

five
two
0

BX7-21

RXH-B12

17.5K

6.4K

3.8K

eight
four
0

four
eight
0

three
six
0

one
eight
0

one
one
0

eight
0

sixty

thirty-six

twenty-four

sixteen

ten

nine

five

three point eight

two point six

one point nine

one point four

zero point four eight

double
pipesixty-four
*2

three
seven
0

one
seven
five

one
five
0

BX7-22

RXH-B14

21K

4.6K

2.4K

one
K

five
eight
0

four
two
0

two
0
0

one
four
0

one
0
0

seventy

forty-four

thirty

twenty

thirteen

eleven

six

four point five

three

two point two

one point seven

zero point five six

four
two
0

BX7-23

RXH-B16

25K

5.4K

2.8K

one
.
two
K

six
eight
0

five
0
0

two
four
0

one
six
0

one
one
0

eighty

fifty

thirty-six

twenty-four

fifteen

thirteen

seven

five point two

three point five

two point six

one point nine

zero point six four

four
seven
0

BX7-24

RXH-B18

29K

10K

3.2K

one
.
four
K

seven
eight
0

five
six
0

two
eight
0

one
eight
0

one
three
0

ninety-five

sixty

forty

twenty-eight

seventeen

fifteen

eight point five

six

four

three

two point one

zero point seven two

five
two
0

Main inspection items, test methods, and performance requirements

Inspection Item	Performance Requirements	Test Method
Temperature coefficient of resistance	��±250(×10^-6/��)	-55��/+20�� 20��/+125��
terminal strength	no shedding	8Kg, bend continuously twice for 30 seconds
rated load	�� R ��± (1% R+0.1 ��), surface temperature rise �� 350 ��	40 ��, rated voltage, 1 hour
Withstand Voltage	No breakdown or arcing	2500V DC��1min
Room temperature durability	��R��±(3%R+0.1��)	Rated voltage, powered on for 90 minutes, stopped for 30 minutes, for a total of 500 hours
Non combustibility	Not burning	1 to 6 times the rated power, 5 minutes average
Short term overload	��R��±(2%R+0.1��)	10 times rated power, 5 seconds
insulation resistance value	1000M��	1000V DC
vibration	��R��±(3%R+0.1��)	10��500Hz 98m/s^two1.5m
Strength of resistor	No damage, no detachment	30Kg,30s
steady-state heat and humidity	��R��±(3%R+0.1��)	+40 ± 2 �� humidity 90-95% 240h

BX7 series sliding line variable resistor

[rheostat]BP4G-40012 type frequency sensitive variable resistor

2026-6-19 11:43:40

BP4G-40012 frequency sensitive variable resistor

[rheostat]BP4G series frequency sensitive variable resistor

2026-6-19 11:43:32

Scope of application

The BP4G series frequency sensitive variable resistor (hereinafter referred to as BP4G) is suitable for use in 14kW-1000kW wound asynchronous induction motors for heavy loads and occasional starting, such as ball mills and crushers.

Starting performance

The starting performance of BP4G is as follows:
1. The load factor is between 0.7 and 1.0;
2. The multiple of starting torque is 1.2;
3. The ratio of starting current to cutting current is less than 2.5 times the rated current;
4. Three consecutive starts are allowed, but the total start time must not exceed 90 seconds.
Appearance and installation dimensions (see Figure 1 and Table 1)

Figure 1
Table 1

Series Table 2

wiring diagram

Single group connection method 2 group series connection method 2 group parallel connection method 2 group parallel connection method (Figure 2)

BP4G series frequency sensitive rheostat

[rheostat]BP8Y series frequency sensitive variable resistor

2026-6-19 11:43:23

1�� The BP8Y series frequency sensitive rheostat is suitable for:

The BP8Y series frequency sensitive variable resistor is suitable for the starting and reverse connection equipment of the new energy-saving motor with a capacity of 1.5 kW to 200 kW, 50Hz, YZR series three-phase asynchronous motors for lifting and metallurgy under frequent operation. The rotor circuit of this asynchronous motor is equipped with a frequency sensitive variable resistor, which is generally connected normally without the need for additional contactor short-circuit devices. Therefore, its characteristic is that it can achieve mechanical characteristics close to constant torque with a refined system, making it an ideal starting component.

2�� BP8Y series frequency sensitive variable resistor model and meaning:

3�� Usage conditions:
Varistors can reliably operate under the following conditions:
1. Altitude not exceeding 2000 meters; 2. The temperature of the surrounding medium is not higher than+40 degrees and not lower than -30 degrees;
3. The relative temperature of the air shall not exceed 85%; 4. Places with rain and snow protection and places without steam;
5. In a medium without explosive hazards, and without gases or conductive dust that can corrode metals and damage insulation;
6. Places that allow for general vibrations and impacts; 7. At any angle from the vertical plane.
Varistors can be divided into three categories based on the frequency of operation:
The first type is slightly more complicated, with 100-400 times per hour. On the bridge crane in the mechanical workshop, in addition to the main hook, there are motors on the translation mechanism, furnace rollers, steel pulling machines, etc. Most of them cut off power as soon as they start.
The second type is more frequent, with 400-600 times per hour, for the bridge crane in the metallurgical rolling workshop. In addition to the main hook, the motor on the translation mechanism, the front and rear working rollers of the rolling mill, and the extension rollers are also included. Most of them cut off power as soon as they start.
The third type of frequent operation, 600-1000 times per hour, includes lifting platform roller conveyor, pressing device, steel pulling machine, and rolling mill intermediate roll.

4�� Sectional structure:

BP8Y series frequency sensitive variable resistor appearance and installation dimensions:

Core number

Number of code rows

BP8Y-103

BP8Y-105

BP8Y-108

BP8Y-112

BP8Y-806

BP8Y-808

BP8Y-810

BP8Y- 812

BP8Y-906

BP8Y-908

BP8Y-910

BP8Y-91

one hundred and fifty

two hundred and twenty

three hundred and twenty

two hundred and thirty

three hundred and fifty-five

five hundred and ten

one hundred and eighty-one

two hundred and fifteen

three hundred and sixty-five

two hundred and twenty-one

two hundred and sixty

four hundred and ten

eighty-two

one hundred and eight

one hundred and forty-seven

one hundred and ninety-nine

one hundred and fifty-eight

one hundred and ninety-four

two hundred and thirty

two hundred and sixty-six

one hundred and sixty-three

two hundred and nine

two hundred and fifty-five

three hundred and one

two hundred and seventy-two

two hundred and ninety-eight

three hundred and thirty-seven

three hundred and eighty-nine

three hundred and fifty-eight

three hundred and ninety-four

four hundred and thirty

four hundred and sixty-six

three hundred and sixty-three

four hundred and nine

four hundred and fifty-five

five hundred and six

BP8Y series frequency sensitive variable resistor

[rheostat]BP6 series frequency sensitive variable resistor

2026-6-19 11:43:15

The BP6 series frequency sensitive variable resistor is suitable for three-phase AC wound asynchronous motors with a frequency of 30Hz. Used for starting heavy loads. The frequency sensitive variable resistor is designed as a four tube structure, consisting of two parts: the iron core and the winding. The iron core has two rings per phase, with aluminum rings on the outermost and second layers, iron rings on the~th and innermost layers, and thick steel plates on the surface. The four tube structure is based on the BP4 series and is equipped with inner aluminum rings and inner iron rings. At the beginning of the motor start-up, due to the skin effect of the current, the magnetic flux is concentrated on the outer iron ring. As the motor speed increases, the slip rate gradually decreases, the skin effect weakens, and the magnetic flux gradually enters the inner iron ring, increasing the induced electromotive force in the inner aluminum ring. Its effect is equivalent to paralleling a resistor with gradually decreasing resistance on the outer aluminum ring. When the parameters are appropriate, the equivalent resistance of the inner and outer aluminum rings is proportional to the square root of the slip rate, and the variable resistance ability can be greatly improved. Therefore, the mechanical characteristics of this four tube frequency sensitive variable resistor are superior to the BP1, BP2, BP4 and other series.

BP6 series frequency sensitive rheostat appearance and installation dimensions:

model	Appearance and installation dimensions mm					Weight kg
model	L	B	H	A	A1	Weight kg
BP6-1	six hundred	two hundred and fifty	three hundred and sixty	five hundred	two hundred and ten	one hundred and two
BP6-2	six hundred	two hundred and seventy	three hundred and sixty	five hundred	three hundred and thirty-six	two hundred

2�� Model and meaning:

3�� Technical performance and data:
When the minimum grid voltage during the starting process is not lower than 90% of the rated voltage, the variable resistance can reliably start the motor with rated load for three consecutive times (with a total starting time not exceeding 90 seconds) after adjusting the tap appropriately. The stator impulse current of the motor during starting should not exceed 2.5 times the rated current.

Basic parameters of BP6 series frequency sensitive rheostat:

Pe - rated power of electric motor in kilowatts; E20-- Open circuit voltage of motor rotor in voltsThe rated current of the motor rotor is A.

4�� Usage and adjustment:
When the variable resistor leaves the factory, the wiring is connected to the 85% tap of the coil. If the motor is connected to the variable starter and any of the following situations occur, adjustments can be made according to the following method:
1. The starting current is too high (greater than 2.5 times) and the starting speed is too fast. You can try to increase the number of turns and connect the tap to 100% of the turns. The effect is to reduce the starting current and the starting torque at the same time.
2. When the starting current is too small (less than 2 times) and the starting torque is not enough, and the starting is too slow, try to reduce the number of turns and switch the tap to 71% of the turns. The effect is to increase the starting current and the starting torque at the same time.
3. If the ball mill and other machinery have difficulty restarting after a period of shutdown due to heavy mechanical loads (steel damage and powder agglomeration), the motor can be turned several times to flip the ball mill cylinder a few times before it can start normally

[rheostat]BP4 series frequency sensitive variable resistor

2026-6-19 11:43:07

The BP4 series frequency sensitive variable resistor is suitable for occasional starting of 14kW-1000kW wound asynchronous induction motors under heavy loads. For example, ball mills, crushers, etc.

Model Description

Installation of external dimensions
BP4 series frequency sensitive rheostat appearance and installation dimensions:

Core number

10#

11#

12#

13V

one hundred and twenty-eight

one hundred and forty-four

one hundred and sixty

one hundred and eighty-six

two hundred and two

two hundred and thirty-nine

two hundred and seventy-one

three hundred and eighty-seven

four hundred and thirty-five

four hundred and eighty-five

five hundred and fifty-eight

six hundred and ten

seven hundred and seventeen

eight hundred and eighteen

one hundred and seventy-three

two hundred and four

two hundred and thirty-three

two hundred and sixty-three

two hundred and ninety-three

three hundred and thirty-three

three hundred and ninety-three

four hundred and sixty-three

two hundred and sixty-three

two hundred and ninety-four

three hundred and twenty-three

three hundred and fifty-three

four hundred and twenty-three

four hundred and fifty-three

five hundred and thirteen

five hundred and eighty-three

eighty-nine

one hundred and five

one hundred and thirty-five

one hundred and thirty-nine

one hundred and fifty-seven

one hundred and ninety-six

two hundred and thirty-three

one hundred and twenty-six

one hundred and forty-two

one hundred and sixty-five

one hundred and eighty-two

two hundred

two hundred and thirty-nine

two hundred and seventy-six

two hundred and eighty-six

three hundred and two

three hundred and twenty-five

three hundred and forty-two

three hundred and sixty

three hundred and ninety-nine

four hundred and thirty-six

BP4 series frequency sensitive rheostat

[rheostat]BP2 series frequency sensitive variable resistor

2026-6-19 11:42:58

The BP2 series frequency sensitive variable resistor has a similar structure to the BP1 series and is used for starting lighter loads with a motor capacity of 10~1120kW, such as air compressors, water pumps, etc. The difference between the structure and BP1 series is that the iron core is made of square steel. The number of iron chips can range from 1 to 4 depending on the motor capacity.

2�� BP2 series frequency sensitive variable resistor models and their meanings

BP2 series frequency sensitive rheostat appearance and installation dimensions:

model	BP2-701	BP2-702	BP2-703	BP2-704
L1	two hundred and forty	two hundred and forty	two hundred and forty	two hundred and forty
L2	three hundred	three hundred	three hundred	three hundred
L3	three hundred and thirty	three hundred and thirty	three hundred and thirty	three hundred and thirty
H1	two hundred and fifteen	two hundred and fifteen	two hundred and fifteen	two hundred and fifteen
H2	two hundred and seventy	two hundred and seventy	two hundred and seventy	two hundred and seventy
B1	one hundred and two	one hundred and sixty-two	two hundred and twenty-two	two hundred and eighty-two
B2	one hundred and twenty-four	one hundred and eighty-four	two hundred and forty-four	three hundred and four
B3	two hundred and eighty-four	three hundred and forty-four	four hundred and four	four hundred and sixty-four

BP2 series frequency sensitive rheostat

[rheostat]BP1 series frequency sensitive variable resistor

2026-6-19 11:42:50

The BP1 series frequency sensitive variable resistor (hereinafter referred to as the variable resistor) is suitable for use with three-phase AC wound asynchronous motors with a capacity of 22kW, 50Hz as light loads or occasionally used for heavy and light loads (such as water pumps, air compressors, steel mills, air compressors, etc.), or for repeated short-term work cycles (such as bridge cranes, lifting platforms, mining conveyors, etc. with a capacity of 2.2kW to 125kW).

Environmental conditions for use
Varistors can reliably operate under the following conditions:
1. Altitude not exceeding 4000m;
2. The temperature of the surrounding medium shall not be higher than+40 �� and not lower than -30 ��;
3. The relative humidity of the air shall not exceed 85% [(20 ± 5) ��];
4. In a medium without explosive hazards, and without gases or dust that can corrode metals and damage insulation in the medium
5. Places that are protected from rain and snow, but not filled with water vapor;
6. Places that allow for general vibrations and impacts;
7. At any angle from the vertical plane.
structural characteristics
A rheostat is a non-contact electromagnetic component that is equivalent to an equivalent impedance. During the starting process of the electric motor, the equivalent impedance automatically decreases with the decrease of high-frequency components in the rotor starting current to achieve automatic resistance change. Therefore, only a first stage variable resistor is needed to start the electric motor smoothly.
A variable resistor is essentially a three-phase reactor with a very high iron core loss. It consists of two main parts: an iron core and a coil, which are made up of several E-shaped steel plates stacked together. Steel plates are clamped with washers to maintain the distance between them for heat dissipation. The structure and installation dimensions are shown in Figure 1 and Table 1.

BP1 series frequency sensitive rheostat appearance and installation dimensions

BP1 series frequency sensitive rheostat appearance and installation dimensions:

BP1-204

BP1-205

BP1-206

BP1-208

BP1-210

BP1-212

BP1-305

BP1-306

BP1-308

BP1-310

BP1-312

BP1-316

two hundred and fifty

four hundred

three hundred and ten

four hundred and eighty

one hundred and eighty-two

two hundred and fifty-two

two hundred and thirty

three hundred and eighty

one hundred

one hundred and fifteen

one hundred and thirty

one hundred and sixty

one hundred and ninety

two hundred and ten

one hundred and twenty-five

one hundred and fifty-three

one hundred and eighty

two hundred and thirty

two hundred and sixty

two hundred and ninety

one hundred and forty

one hundred and fifty-five

one hundred and seventy

two hundred

two hundred and thirty

two hundred and sixty

one hundred and seventy-three

two hundred and five

two hundred and thirty

two hundred and eighty

three hundred and ten

three hundred and forty

two hundred and forty

two hundred and fifty-five

two hundred and seventy

three hundred

three hundred and thirty

four hundred and eleven

three hundred and twenty-five

three hundred and fifty-five

three hundred and eighty

four hundred and thirty

four hundred and sixty

four hundred and ninety

BP1 series frequency sensitive rheostat

[rheostat]BP3 series frequency sensitive variable resistor

2026-6-19 11:42:33

Scope of application

The BP3 series frequency sensitive variable resistor (hereinafter referred to as BP3) is suitable for starting 2.2-125kW, JZR series wound asynchronous induction motors under frequent operation. BP3 is often connected to the motor rotor circuit and generally does not require additional short-circuit devices. The model meaning of BP3 is the same as that of BP1 series.
Usage
BP3 can be divided into three categories based on the frequency of operations:
1. Type 1: Slightly frequent, 100-400 times per hour. Such as the motor on the translation mechanism of the bridge crane in the mechanical workshop, the furnace roller, the steel pulling machine, etc. Most of them cut off power as soon as they start.
Series Table
According to the different specifications of the motor and the frequency of operation, the specifications and number of each group of frequent variable resistors can be directly found in the following table. The series tables are shown in Table 1 and Table 2
The BP3 series table applicable to JZR series motors is shown in Table 1
2. The second type: more frequent, 400-600 times per hour. Such as the motor on the translation mechanism of the bridge crane in the Jin steel rolling workshop, the front and rear working rollers of the rolling mill, and the extension roller. Most of them cut off power as soon as they start.
3. The third category: frequent operations, 600-1000 times per hour. Such as lifting platform, lifting platform roller conveyor, pressing device, steel pulling machine, rolling mill intermediate roll, etc.

Table 1

The BP3 frequent variable resistor series table applicable to JZR2 series motors is shown in Table 2
Table 2

Appearance and installation dimensions (see Figure 1 and Table 3)

Figure 1

Table 3

Wiring diagram (see Figure 2)

Single group connection method 2 series connection method 2 parallel connection method 2 series 2 parallel connection method Figure 2

BP3 series frequency sensitive rheostat