Low Voltage Reactive Power Local Compensation Device
✅Optimal Compensation Effect
✅Releases System Capacity
✅Improves Voltage Quality
✅Simple Structure and Lower Cost
✅Flexible Installation
- Product Introduction
Jinneng Low Voltage Reactive Power Local Compensation Device (commonly referred to as a Local Compensation Cabinet or Random Compensation Cabinet) is a device installed near electrical equipment (such as electric motors) to provide dedicated reactive power compensation for that specific device.
It adheres to the principle of "local balance," making it one of the most direct and effective methods of reactive power compensation.
Suitable for frequently started/stopped, long-term lightly loaded, or remote inductive loads, such as fans, pumps, large machine tools, etc.
Technical parameters
|
Specification |
A |
B |
H |
|
1-10kvar |
220 |
100 |
300 |
|
11-16kvar |
220 |
100 |
400 |
|
17-22kvar |
230 |
140 |
400 |
|
23-40kvar |
300 |
230 |
440 |
|
45-60kvar |
300 |
250 |
550 |
|
65-100kvar |
500 |
250 |
550 |
Product advantages
● Reduces Line Losses: Decreases reactive current, lowering copper losses (Ploss=I²R).
● Improves Voltage Quality: Mitigates voltage drops caused by reactive power transmission.
● Reduces Transformer and Cable Capacity: Frees up system capacity, avoiding upgrade costs.
● Precise Compensation: Close to the load, preventing over/under-compensation issues seen in centralized compensation.
● Installation convenient: As close as possible to the load (e.g., motor terminals) for optimal compensation.
Comparison with Centralized Compensation
| Feature | Centralized Compensation | Local Compensation |
|---|---|---|
| Installation Location | Low-voltage busbar side of the substation | Near individual electrical equipment |
| Compensation Target | Total reactive power demand of the entire substation | A single, specific device |
| Compensation Effect | Only compensates for reactive power upstream of the busbar; cannot reduce losses in feeder lines | Most thorough compensation; reduces losses in all upstream lines |
| Investment Cost | Large one-time investment | Distributed investment per device, flexible |
| Suitable Conditions | Numerous loads, small individual capacity, widely distributed | Fewer loads, large individual capacity, long-term stable operation |
Reactive power compensation application:
Low voltage reactive power local compensation device is for improving the power quality in following scenarios:
Suitable for frequently started/stopped, long-term lightly loaded, or remote inductive loads, such as fans, pumps, large machine tools, etc.
Harmonic Environment: If grid harmonics are significant (THD > 5%), use harmonic-resistant capacitors or install reactors.
Precautions
Anti-Resonance: Avoid resonance between capacitors and system inductance; harmonic analysis or reactors may be required.
Overcompensation Risk: May cause voltage rise, damaging equipment.
Maintenance: Regularly check capacitors for bulging or leakage, and measure capacitance degradation.
Cooperated customers:
Our partners are: State grid, China Southern Power Grid, China Huaneng, Sdic Power, CHD, TK, Sinopec, Petrochina, China Guodian, Aux, China Railway, China Railway Construction, CNNC, China mobile, Life's Good,Tianneng, China 3 Gorges, CR power, CATL,Siemens and etc.
Hot Tags: low voltage reactive power local compensation device, China low voltage reactive power local compensation device manufacturers, suppliers, factory, Low Voltage Reactive Power Local Compensation Device, reactive power devices, jp box, dynamic compensation equipment, energy compensation equipment, TBB Low Voltage Reactive Power Compensation Equipment
