The SJW-WB and DJW-WB series single and three-phase microcomputer contactless compensation power regulators (voltage regulators) are the latest high-power AC voltage regulators (voltage regulators) designed based on China's national conditions and introduced with the latest technology of international AC voltage regulators (voltage regulators). This voltage regulator (stabilized power supply) integrates advanced combination winding compensation method and contactless switch, microcomputer controlled AC voltage stabilization technology. It has high efficiency, energy saving, fast adjustment, three-phase automatic balance, no mechanical faults and carbon brush wear. It also has functions such as delay, overvoltage and undervoltage alarm, and protection. At the same time, this voltage regulator (stabilized power supply) has made a breakthrough in solving the damage caused by the transient operation of the system and components to the common state current surge and overvoltage produced by the contactless switch. It has strong instantaneous overload capability, thus greatly improving the reliability of the voltage regulator system operation.
Main technical parameters (DJW-WB.SJW-WB single Three phase microcomputer contactless compensation power stabilizer
Input voltage range: single-phase 176-264V, three-phase 304-456V
Output voltage: single-phase 220V, three-phase 380V
Voltage stabilization accuracy: ± 2.5%
Frequency: 50-60Hz
Load power factor:>0.7
Efficiency:>95%
Strain time: 0.2-0.5s
Instantaneous overload capacity: 1.5-2 times the rated current
Environmental temperature: -15~40 ℃
Functional features: no contact, no noise, no mechanical or carbon brush wear; It has functions such as overvoltage, undervoltage, fault diagnosis, signal display, alarm, and protection.
Model specifications (DJW-WB.SJW-WB sheet) Three phase microcomputer contactless compensation power stabilizer
| phase number |
Model and specification (kVA) |
Rated capacity (kVA) |
Output maximum current (A) |
Overall dimensions Depth x Width x Height (mm) |
single phase |
DJW-WB-10 |
ten |
forty-five |
600×400×1350 |
| DJW-WB-15 |
fifteen |
sixty-eight |
600×400×1350 |
| DJW-WB-20 |
twenty |
ninety-one |
600×400×1350 |
| DJW-WB-30 |
thirty |
one hundred and thirty-six |
600×450×1450 |
| DJW-WB-50 |
fifty |
two hundred and twenty-seven |
600×450×1450 |
| DJW-WB-60 |
sixty |
two hundred and seventy-three |
600×450×1450 |
| DJW-WB-80 |
eighty |
three hundred and sixty-four |
700×500×1450 |
| DJW-WB-100 |
one hundred |
four hundred and fifty-five |
700×500×1450 |
| Three-phase |
SJW-WB-10 |
ten |
fifteen |
600×500×1350 |
| SJW-WB-15 |
fifteen |
twenty-two |
600×500×1350 |
| SJW-WB-20 |
twenty |
thirty |
600×500×1350 |
| SJW-WB-30 |
thirty |
forty-five |
600×500×1550 |
| SJW-WB-50 |
fifty |
seventy-six |
700×600×1650 |
| SJW-WB-100 |
one hundred |
one hundred and fifty-two |
800×600×1750 |
| SJW-WB-150 |
one hundred and fifty |
two hundred and twenty-seven |
1000×800×1800 |
| SJW-WB-180 |
one hundred and eighty |
two hundred and seventy-three |
1000×800×1800 |
| SJW-WB-200 |
two hundred |
three hundred and three |
1000×800×1800 |
| SJW-WB-225 |
two hundred and twenty-five |
three hundred and thirty-three |
1000×800×1800 |
| SJW-WB-250 |
two hundred and fifty |
three hundred and seventy-nine |
1000×800×1800 |
| SJW-WB-300 |
three hundred |
four hundred and fifty-five |
1000×900×1850 |
Note: The above is the requirement for a ± 20% input range power supply. If there are special specification requirements, they can be customized.
Selection Tips (DJW-WB.SJW-WB Single) Three phase microcomputer contactless compensation power stabilizer
1. This voltage regulator (stabilized power supply) product is a three-phase four wire, phase separated regulation method. The reliability requirements for the neutral line connection in the system are very high. Therefore, when using this voltage regulator (stabilized power supply), attention should be paid to the selection of the cross-sectional area of the neutral line in the system, and the contact resistance of the neutral line should be minimized as much as possible.
2. When selecting this voltage regulator (stabilized power supply) product, the current of the load equipment shall not exceed the rated current value of the product; If using inductive motor loads, their power shall not exceed 1/6 of the power of this voltage regulator (stabilized power supply) product.
3. The input and output of this voltage regulator (stabilized power supply) product are not isolated, please pay attention to preventing static electricity.