Introduction of control circuit of high voltage switch cabinet

The parameters 6 and 3 of the high-voltage switchgear equipment are turned on and off by the main control power switch and the respective air switch, and are not controlled by the contactor and relay. Purpose of high voltage switch cabinet power-on test bench High voltage switch cabinet power-on test bench is widely used in high-voltage switch cabinet manufacturers to carry out various energization tests on the produced high-voltage switch cabinets before leaving the factory. It can provide a variety of AC and DC power supplies to facilitate the detection of switchgear and improve work efficiency.

After using the factory battery pack or energy storage capacitor, when there is alternating current, the silicon rectifier device provides DC voltage to the control circuit, etc., and also charges the battery pack or capacitor (float charging); when operating the power supply requires a large current, For example, when the circuit breaker is closed, when the current is large, the battery pack or energy storage capacitor also participates in the power supply. High-voltage switchgear When the AC power is cut off, the mountain battery pack or energy storage capacitor supplies power, and within the specified time, ensure that the electricity value does not fall below the allowable range.