What Are The Experimental Items For Low Voltage Pole Mounted Circuit Breakers?

Lv Pole Mounted Circuit Breakers What items should be tested before leaving the factory? In order to make the outdoor vacuum circuit breaker run more safely, we need to test multiple items. Let me talk to you about what items are there!

1. Insulation resistance measurement;

2. AC withstand voltage test;

3. Auxiliary circuit and control circuit AC withstand voltage test;

4. Conductive circuit resistance measurement

5. Circuit breaker closing and opening time, closing periodicity, contact opening distance, and bounce process inspection during closing

6. Low action voltage measurement of the closing contactor and the opening and closing electromagnets of the operating mechanism;

7. Insulation resistance and DC resistance measurement of the closing contactor and the opening and closing electromagnet coils of the operating mechanism;

8. Vacuum degree measurement of the vacuum interrupter;

9. Check whether the soft connection clip on the moving contact is loose.

The above is an introduction to the items that need to be tested for outdoor vacuum circuit breakers.