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.
HYTBBM Series Low-Voltage End-Point Reactive Power Compensation Device
The HYTBBM low-voltage end-point reactive power compensation device is installed close to motors, feeders or other inductive loads that require local compensation. Available balanced, phase-separated and hybrid compensation modes allow the device to follow different load conditions, improving power factor, lowering feeder current and reducing voltage drop and distribution losses.
Technical Parameters
| Parameter | Specification |
|---|---|
| Rated Voltage | 380 V, three-phase |
| Rated Capacity | 30 / 45 / 60 / 90 kvar (customizable per user requirements) |
| Compensation Mode | Three-phase balanced compensation; Three-phase individual compensation; Three-phase hybrid (balanced + individual) compensation |
| Fixed Compensation | Optional fixed capacitors available on request |
| Control Parameter | Reactive power |
| Dynamic Response Time | Mechanical switch: ≤0.25 s; Integrated electronic switch: ≤20 ms |
| Permissible Voltage Deviation | –15% ~ +10% (steady operation maintained up to 418 V) |
| Protection Functions | Over-voltage, under-voltage, phase loss (using PDC-8000 comprehensive control unit), harmonic overload, unbalanced voltage, and more |
| Automatic Operation | Automatic recovery within 10 s after fault removal or power restoration |
Basic Functions
- Reactive Power Compensation: Uses reactive power as the control parameter, automatically switching capacitors according to system demand. Improves power factor to ≥0.9.
- Fast Protection: Quickly removes capacitors from the circuit during over-voltage, under-voltage, phase loss, or excessive harmonic distortion.
- Unbalance Compensation: Rapid response when system experiences voltage unbalance or missing phase; automatic fault alarm and trip output.
- Comprehensive Monitoring: Equipped with intelligent controller (128×64 LCD display), real-time monitoring of system parameters and preset values.
- Data Collection:
- Three-phase voltage / current / power factor
- Active power / reactive power
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