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.
HYTBB Series Low-Voltage Outdoor Reactive Power Compensation Box
The HYTBB Low-Voltage Integrated Reactive Power Compensation Cabinet is designed for distribution transformers, low-voltage feeders, and various outdoor low-voltage power distribution environments where real-time reactive power compensation is required.
The HYTBB Low-Voltage Integrated Reactive Power Compensation Cabinet is designed for distribution transformers, low-voltage feeders, and various outdoor low-voltage power distribution environments where real-time reactive power compensation is required. It integrates reactive power compensation optimization with power monitoring, achieving automatic tracking and smooth compensation performance.
By combining fixed and dynamic compensation modes, the system continuously adapts to changes in grid operating conditions, improving the stability of power factor and reducing line losses. It effectively enhances transformer utilization, increases the efficiency of transmission lines, and improves power quality at the load side.
The monitoring system supports comprehensive electrical parameter acquisition, including three-phase voltage, current, power factor, active power, temperature, and more, providing accurate data for analyzing grid operation. A capacitor current measurement function is included to ensure safe long-term operation of capacitors. The system is equipped with advanced backend management software capable of performing multi-dimensional data analysis.
The HYTBB compensation cabinet is widely used in mechanical manufacturing, metallurgy, mining, chemical industry, building materials, oil fields, ports, residential areas, commercial buildings, and schools. It is especially suitable for power distribution networks with high inductive loads, frequent load fluctuation, or large changes in reactive power demand.
Model Code Description
Example: HYTBBJL-0.4-□/□W-P7
| Code | Meaning |
|---|---|
| P | Reactor |
| H | Harmonic filter branch |
| W | Outdoor cabinet structure |
| □ | Number of capacitor groups |
| □kvar | Rated reactive compensation capacity |
| 0.4kV | System voltage level |
| Type 2: L – Filter compensation, W – Line compensation | |
| Type M: Standard type / Energy-saving type | |
| Type 1: J – Static, D – Dynamic | |
| HYTBB | Reactive power compensation equipment |
| P7 | Company model code |
Main Features
- Uses power factor and reactive power sampling control to ensure grid stability, eliminate oscillation, and achieve optimized compensation performance
- Zero-crossing capacitor switching, quick response, accurate prediction of reactive demand, smooth compensation without over-compensation or oscillation
- Supports multiple compensation modes: fixed, automatic, hybrid compensation; also supports manual intervention when needed
- Comprehensive monitoring of three-phase voltage, current, power factor, active/reactive power, frequency, harmonics, capacitor current, and switching state
- Ensures good power quality, improves transformer and feeder utilization, and reduces system losses
- Capacitor life protection and intelligent switching to ensure safe long-term operation
- Supports friendly HMI with real-time LCD display for easy on-site maintenance
- Protection functions include: over-voltage, under-voltage, short-circuit, over-current, unbalance, harmonic protection
- Optional remote monitoring through GPRS for data acquisition, alarm, and remote operation
- Logs historical operation data for analysis and troubleshooting
- Customizable to meet different installation and performance needs
- Easy installation, stable operation, convenient maintenance
Applications
Suitable for industries with high inductive loads and frequent load changes:
Mechanical manufacturing, metallurgy, mining, chemicals, building materials, oil fields, ports, residential areas, schools, commercial facilities, etc.
Mechanical manufacturing, metallurgy, mining, chemicals, building materials, oil fields, ports, residential areas, schools, commercial facilities, etc.
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PROJECT REFERENCE
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