Low-Voltage End-Point Reactive Power Compensation Device

Description

The HYTBBM Series Low-Voltage End-Point Reactive Power Compensation Device adopts a microprocessor as the control core to automatically track and monitor system reactive power. The controller uses reactive power as the control parameter, performing fully automatic capacitor switching through dedicated actuators. This ensures fast response, reliable operation, and effective compensation, while eliminating the risks of overcompensation and the impacts or disturbances caused during capacitor switching.

Designed according to the characteristics of different loads, this intelligent low-voltage reactive power compensation device can significantly improve system performance:

• Improves power factor from around 0.65 to above 0.9

• Increases transformer and line transmission capacity by 15–30%

• Reduces line losses by 25–50%

• Stabilizes voltage and improves overall power quality

• Effectively lowers electricity costs for users

This solution provides reliable, efficient, and intelligent reactive power compensation at the low-voltage distribution level, ensuring better stability and energy efficiency for modern power systems.

Technical Parameters

• 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