Zhejiang Hongyan Electric Co., Ltd. 
ENGINEERED SOLUTION
Steel & Metallurgy
Power factor correction, harmonic mitigation and voltage support for electric arc furnaces, rolling mills, cranes and high-load metallurgical production lines.
HYTBBJ Series Low-Voltage Static Reactive Power Compensation System
The HYTBBJ low-voltage static reactive power compensation system automatically switches capacitor groups according to measured reactive demand or power factor. It is designed for distribution systems with relatively steady inductive loads in manufacturing, buildings and public facilities, helping reduce reactive current, improve transformer utilization and maintain the required power factor.
Model Code Description
Example: HYTBBJL-0.4-□/□W-P7
| Code | Description |
|---|---|
| P | Reactor |
| H | Harmonic filter branch |
| W | Outdoor cabinet structure |
| □ | Number of capacitor groups |
| □ kvar | Rated compensation capacity |
| 0.4 kV | System voltage level |
| Type 2 | L – Filter compensation / W – Line compensation |
| Type M | Standard type (usually omitted) |
| Type 1 | J – Static / D – Dynamic |
| HYTBBJ | Static reactive power compensation unit |
| P7 | Company code |
Product Features
- Uses power factor (reactive current) control, supporting both manual and automatic modes
- Multiple switching modes available: loop switching, group switching, sequential switching, etc.
- Real-time monitoring of three-phase voltage, current, power factor, and compensation status
- Fast switching response with adjustable capacitor switching delay (0–120s); special fast mode available ≤1s
- Complete protection functions including over-voltage, under-voltage, over-current, short circuit, capacitor fault, switching error protection
- Effectively suppresses voltage fluctuation and reduces harmonic current (typ. 20%–30%)
- High cost-performance ratio with stable operation, particularly applicable to most power distribution systems requiring fixed/static compensation
Application Fields
The HYTBBJ static reactive power compensation system is designed for safety and reliability, suitable for:
Steel smelting | Heating furnaces | High-frequency furnaces | Cement industry | Food processing | Ceramics | Motors | Welding | Electroplating | Elevators | Electric rail systems | Residential communities | Commercial buildings | Public facilities
It is ideal for inductive loads with relatively stable reactive power demand.
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PROJECT REFERENCE
High Voltage Compensation Unit
High-voltage power factor correction configured for an outdoor industrial distribution system with a target power factor above 0.95.
PROJECT REFERENCE
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