GGJ Intelligent Reactive Power Compensation Device

GGJ Low-Voltage Reactive Power Intelligent Compensation Device | Power Factor Correction System

The GGJ low-voltage reactive power intelligent compensation device is an advanced power factor correction system designed with microcomputer control technology and computer-aided design (CAD). It performs intelligent tracking compensation for reactive power in real-time, improving the power factor, reducing reactive loss, and enhancing the overall quality and stability of power supply systems.

With its optimized structure and cutting-edge control algorithms, the GGJ device is widely used in low-voltage distribution networks and is especially suitable for 130–600 kVA three-phase transformers. It fully complies with IEC 61439-1: Low-Voltage Switchgear and Control Assemblies – Part 1: General Rules, ensuring safety, reliability, and international standardization.

Main Features of GGJ Intelligent Compensation Device

1. Intelligent Control and High Power Factor: Equipped with an intelligent controller that performs automatic compensation to raise the power factor up to 0.9 or higher. The system ensures continuous and reliable performance without manual supervision.

2. Real-Time Monitoring: Displays the grid’s power factor and reactive power range in real-time, covering both lagging (0.00–0.99) and leading (0.00–0.99) conditions.

3. Comprehensive Protection Functions: The GGJ compensation device features multiple protections, including over-voltage, harmonic distortion, over-compensation, system failure, phase loss, and overload protection. These safeguards ensure stable and safe operation under various conditions.

4. Data Retention and Auto Recovery: Parameters remain stored even after power failure. When the grid returns to normal, the device automatically resumes operation without human intervention.

5. Flexible Compensation Modes: Supports both phase compensation and mixed compensation modes according to load balance conditions, providing adaptable power factor correction.

6. Strong Anti-Interference Capability: The system can withstand interference pulses up to 2000V directly from the grid—well above national industry standards—ensuring long-term operational reliability.

Technical Conditions

Altitude: ≤2000m
Ambient Temperature: -20°C ~ +45°C
Relative Humidity: ≤90% at 20°C
Installation Environment: Free of corrosive gas, conductive or explosive dust, and mold contamination.

Monitoring and Data Management Functions

1. Real-Time Measurement: Continuously monitors and records three-phase voltage, current, frequency, active power, reactive power, power factor, and total harmonic distortion. It also captures 2nd–25th subharmonic data on the transformer’s low-voltage side.

2. Smart Communication Interface: Equipped with RS-232 and RS-485 communication ports for easy data integration with computers or remote monitoring systems. Supports wireless meter reading, remote device testing, parameter configuration, and real-time data retrieval.

3. Advanced Data Analysis: The built-in data analysis function enables comprehensive power quality assessment. It calculates voltage qualification rate, power supply load rate, reliability, and maximum load rate. The system generates visual diagrams of voltage, current, and power factor, and supports automatic report printing for performance evaluation.

Applications and Advantages

The GGJ low-voltage reactive power compensation cabinet is widely used in industrial facilities, commercial buildings, and power distribution systems requiring stable voltage and efficient reactive power management. Its advanced compensation technology effectively improves energy efficiency, reduces line loss, and enhances the lifespan of electrical equipment.

By integrating intelligent monitoring and automatic control, the GGJ compensation device helps maintain stable grid operation, ensures compliance with energy-saving standards, and supports sustainable power management in modern electrical systems.