GGJ Series Reactive Power Capacitor Compensation Cabinet

The GGJ series automatic reactive power compensation panel is intended for indoor use. It is applied in three‑phase AC 380V, 50Hz power distribution systems of industrial and mining enterprises, workshops, and residential buildings, with transformer capacities ranging from 100 to 1000 kVA, to improve the power factor of electrical energy. The GGJ panel can be used in combination with the GGD series low‑voltage distribution panel or independently. This compensation panel is designed for two‑side maintenance. The main panel can be equipped with one automatic reactive power compensation controller (referred to as the controller). The controller operates using an equal‑quantity sequential cyclic switching method. Based on the amount of inductive reactive power consumed in the low‑voltage distribution system, the controller automatically controls the switching of shunt capacitors at an adjustable time interval from 10 to 20 seconds, thereby maintaining the reactive power consumption of the distribution system at an optimal level. This improves the voltage quality of the power grid and reduces losses in the transmission and distribution system as well as in the transformer.

1.The ambient air temperature shall not exceed +40°C and shall not be lower than -5°C. The average temperature over any 24‑hour period shall not exceed +35°C.

2.The equipment shall be installed indoors. The altitude at the installation site shall not exceed 2000 m.

3.The relative humidity of the surrounding air shall not exceed 50% at a maximum temperature of +40°C. Higher relative humidity is permitted at lower temperatures (e.g., 90% at +20°C). The effects of occasional condensation due to temperature variations shall be taken into account.

4.The inclination of the equipment during installation shall not exceed 5° from the vertical.

5.The equipment shall be installed in a location free from violent vibration and shock, and where electrical components will not be subject to corrosion.