CTB spring motor operating mechanism for medium voltage Vacuum Circuit Breaker production QC testing

CTB type Operating Mechanism, it was one of the most compact size design; it is core components parts for ZW32 type Vacuum Circuit Breaker.

Operating Mechanism and Vacuum Interrupter were two core component parts for VCB.

In order to have a good control of quality, we have 3 times inspections.

Raw material inspection, 100%;

Production inspection, 100%;

Finish products inspection after install into Vacuum Circuit Breaker, will done the sample test.