GGJ Low‑Voltage Intelligent Reactive Power Compensation Cabinet, 380V/400V Capacitor Compensation Panel

GGJ low‑voltage reactive power compensation cabinet is an automatic reactive‑power compensation device specially designed for low‑voltage power grids. It optimizes power quality by improving power factor and reducing line losses.

This device can effectively improve the power factor of electrical loads, reduce line losses, and increase the actual load capacity of transformers, achieving significant energy‑saving effects. Additionally, by using specific reactors in the system, it can effectively prevent harmonic amplification and effectively absorb most harmonic currents, bringing the total harmonic voltage distortion limit and individual harmonic current content limits into compliance with national standards, thereby achieving harmonic mitigation.

If ordinary contactors are used to switch capacitor banks, the result will be large inrush currents, slow compensation time, high maintenance costs, and short service life. Therefore, we recommend that users give priority to the use of dynamic reactive power compensation devices in the following applications: low‑voltage power grids such as substations, production workshops in industrial and mining enterprises, and civil buildings, particularly in power transmission and distribution systems where loads frequently change and reactive power is unstable.

Ambient temperature: ‑25℃ ~ 40℃ (high/low temperature customizable)
Relative humidity: ≤50% at high ambient temperature (e.g. 40℃)
Altitude: ≤1000m (customizable for >1000m)
Environment: Clean air, no significant dust, smoke, corrosive gas, flammable vapour or salt‑fog pollution
No violent vibration at installation site, no rain or snow erosion
Alternative specification: ‑5℃ ~ 40℃, humidity ≤30% at 20℃, altitude ≤2000m

1. High Compatibility The compensation cabinet can be freely combined with various domestic and international switchgear cabinets, such as MNS, GCK, GGD, etc.
2. Flexible Capacitor Configuration Multiple compensation modes available: Y‑type compensation, A‑type compensation, Y A combined compensation mode.
3. Diverse Communication Options Equipped with RS‑232 / RS‑485 communication interface. Optional wireless data module or GPRS module for long‑distance remote monitoring.
4. Safe Control Strategy Over‑voltage alarm trigger. No inrush current or over‑switching during capacitor input; no over‑voltage generated during disconnection.
5. Long Service Life Under maintenance‑free operation, service life reaches over 100,000 hours.
6. Fast Dynamic Response Switching time ≤20ms, real‑time tracking of grid reactive‑power changes. Inrush current during input <25×In.