High midium voltage Switch cabinet Circuit breaker base chassis truck

详情

Material: Steel with zinc plating
Certification: ISO***1: ***0

DPC chassis truck MID-door interlock function

DPC-/ G chassis truck
This type only add door closing operation, we fail to shake the chassis truck with handle only when the cabinet door closed. No need modify the cabinet door

DPC*-/S chassis truck
This type add locking function besides item a function, when the handcart move away from testing position, the door will be locked, which can be opened again only when the handcart back to the testing position. The cabinet door need modified.

Chassis truck is mainly used to holding circuit breaker, transformer and other components in the withdrawable switchgear, as auxiliary operation of components with busbar. When operation with internal mechanism of circuit breaker and other interlock mechanism of MID-placed cabinet, it can satisfy the interlock requirement of "5 preventions" stipulated in GB***6.

1. Only when the handcart is under testing/isolating or working position, the circuit breaker can close. After that, the handcart is under locked state, which avoids false connecting or making of the spacing contact.

2. When the handcart is under working position or away from testing/isolating position for *0mm, the earthing switch fails to close, avoid powered false making of the switch.

3. When the earthing switch close, the handcart shall not shift from testing/isolating to working position, avoid the switch closing the circuit breaker in making.