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The operation methods of each outdoor high-voltage vacuum circuit breaker are different, so how are they operated?

When the vacuum circuit breaker is in the opening state, the distance between the moving and static contacts of the vacuum switch tube is related to the rated voltage, service conditions, the nature of the breaking current, the contact material, the withstand voltage strength of the vacuum gap and other factors of the vacuum circuit breaker, which mainly depends on the rated voltage and the contact material.

As the rated opening distance of the vacuum switch has a great impact on the insulation performance, when the rated opening distance increases from zero, the insulation level will also be improved. However, when the opening distance increases to a certain value, the opening distance has little impact on the insulation performance. If the opening distance is further increased, the switch will be seriously affected

Mechanical life of pipe. Through the installation, operation and maintenance of vacuum circuit breaker, it is concluded that the general selection range of rated opening distance of vacuum circuit breaker is: 4 ~ 8mm for 6kV and below, 8 ~ 12mm for 10kV and below, and 20 ~ 40mm for 35kV.