Overview
The GGJ low-voltage intelligent reactive power compensation device adopts computer-aided design (CAD) and introduces microcomputer control to perform intelligent tracking compensation for reactive power. With a reasonable structure and advanced technology, it is widely used in low-voltage power grids to improve power factor, reduce reactive power loss, and enhance power supply quality. It is a new generation of energy-saving products.
It is specifically designed for reactive power compensation of 130-600KVA three-phase transformers.
Product Features
1. Controlled by an intelligent controller, with complete functions, reliable performance, and automatic compensation mode; it can raise the power factor above 0.9;
2. Real-time display of the power grid power factor, display range: lagging (0.00-0.99), leading (0.00-0.99);
3. It has multiple comprehensive protection functions such as overvoltage, over-harmonics, over-compensation, system fault, phase loss, and overload;
4. It memorizes the set parameters, and the parameters will not be lost after a system power outage. After the power grid returns to normal, it automatically enters the operating state without the need for personnel on duty;
5. According to the load balance condition of the power grid, phase-splitting compensation or hybrid compensation can be adopted;
6. Strong anti-interference capability, able to withstand interference pulses with an amplitude of 2000V directly input from the power grid, which is higher than the national professional standard.
Optional power grid monitoring function
Real-time measurement and hourly recording of the three-phase voltage, current, frequency, active power, reactive power, power factor, active energy, and reactive energy on the low-voltage side of the transformer; total voltage and current distortion rates and 2nd-25th harmonic content;
Equipped with RS-232 and RS-485 interfaces, it can perform data transcription with a palmtop computer, and can also realize wireless meter reading, device testing, parameter setting, and reading of real-time measured data and recorded data through remote communication functions;
Data analysis function: it can analyze, process, statistically query operating load data; comprehensively analyze power supply quality, calculate voltage qualification rate, power supply load rate, reliability rate, and maximum load rate; query power factor, active power, and reactive power by time period; draw curve charts of voltage, current, power factor, etc. for each phase; print comprehensive analysis and statistical reports.
Main Technical Parameters
| No. | Name | Parameter |
| 1 | Rated voltage | 0.38-0.66kV |
| 2 | Rated frequency | 50Hz |
| 3 | Rated capacity | 1-600kvar |
| 4 | Applicable voltage range | (0.85-1.1) times rated voltage |
| 5 | Maximum allowable current | 1.3 times rated current |
| 6 | Control circuit | 1-16 circuits |
| 7 | Switching time | 1-150S/time, adjustable |
| 8 | Operating mode | Automatic, continuous operation |












