This trolley is one of the core components of switch cabinet,welded by bent armor plate with four idler wheels on the bottom,it can move along the horizontal direction,and is also equipped with earthing contact,gukding device,locking mechanism and handle mechanis.
The trolley is divided into seven types:trolley of circuit breaker,trolley of voltage ftansformer,trolley of voltage transformer arr-ester,trolley of general transformer,disconnecting trolley and earthing trolley.
Maximum working voltage
Maximum breaking current on the maximum working voltage
Thermal arrest current
Passing current limit (dynamic current)(Peak value)
Maximum switching current(Peak value)