Reasons for the reduction of the vacuum degree of the vacuum interrupter

The main problem of the vacuum interrupter is that the degree of vacuum is reduced. The main reasons for the decrease in vacuum degree are as follows.

(1) The vacuum circuit breaker is a relatively delicate component. After the electronic tube factory leaves the factory, after many times of transportation bumps, installation vibrations, accidental collisions, etc., leakage of glass or ceramic seals may occur.

(2) There is a problem with the material or production process of the vacuum interrupter, and leakage occurs after repeated operations.

(3) For split type vacuum circuit breakers, if an electromagnetic operating mechanism is used, during operation, due to the relatively large distance of the operating connecting rod, it directly affects the characteristics of the switch, such as synchronization, bounce, and overtravel, and accelerates the reduction of the vacuum degree.

The treatment method for reducing the vacuum degree of the vacuum interrupter:

Regularly observe the vacuum interrupter. Regularly use the vacuum switch vacuum tester to measure the vacuum degree of the vacuum interrupter to ensure that the vacuum degree of the vacuum interrupter is within the specified range; when the vacuum degree decreases, the vacuum interrupter must be replaced , and do a good job of stroke, synchronization, bounce and other characteristics of the test.