DPC chassis vehicle

The chassis car is mainly used for installing circuit breakers, Transformers and other components in withdrawableSwitchgear,pushing them in and out, and serving as an auxiliary operation for connecting the components to the busbar. When the chassis car cooperates with the internal mechanism of the circuit breaker and otherinterlocking mechanisms of the central cabinet, it can meet the "five prevention" interlocking requirements in GB3906. The specific functions are as follows:

1. The circuit breaker can only be closed when the handcartis in thetesting/isolation orworkingposition,andafterthe circuit breaker is closed, the handcart cannot move, thus preventingthe occurrence ofload connected and mistakenly closed isolation contacts.

2.When the handcart is in the workingposition or about 10mm away from the testing/isolation position, thegroundingswitch cannot be closed to preventaccidental closing ofthegrounding switch when energized.

3.Whenthegrounding switch is closed,thehandcart cannot move from thetest/isolation position tothe workingposition topreventthe circuit breaker from beingclosed whenthegrounding switch is in the closed position.

4.Afterthechassisvehicleentersthe cabinet,once it leavesthetesting/isolation position,the handcartcannotbewithdrawnfrom the cabinet.