Power capacitor system loads, such as motors and welding machines. Induction furnaces and other electrical equipment, in addition to active power consumption, absorb reactive power. The power system of transformers also requires reactive power. If all provided reactive power generators are not only economical, but also have poor voltage quality, which affects users.

The sinusoidal AC circuit of a power capacitor can provide reactive power of "d". If the capacitor operates on the load (motor) or transmission equipment (transformer), the reactive power required for the review or transmission equipment is provided by the capacitor.

The function of capacitor reactive power compensation. By compensating reactive power on-site, energy loss can be reduced, line voltage drop can be reduced, and voltage quality can be improved. Improve the power supply capability of the system.

(1) When the system voltage is too high;

(2) After the repair of the capacitor bank, it will be renovated or put into operation for a long time;

(3) Abnormal operation and equipment operation;

(4) Severe weather or suspicious operational phenomena;

(5) Protecting the power supply is an important task.

When there is a short circuit in the travel capacitor bank, fuse, etc., it is particularly important to immediately inspect and patrol. In addition to the above, it is necessary to conduct experiments to handle the unknown fault of the capacitor. If the capacitor or circuit breaker trips and the fuse blows, it should be sent again before closing the door.