Abb Schweiz Ag

Hitachi Energy Ltd

Hitachi Energy Switzerland Ag

Abb Power Grids Switzerland Ag

Zhipeng Yuan

Chao Xu

Xuan Liu

Rui Chen

Hua Zhao

Jiaquan Yan

JiaQuan Yan

Xiaoli Yang

The apparatus includes a shaft rotatable to a plurality of predetermined positions to change a state of an electric switching device, a motor rotating the shaft via a transmission mechanism when the apparatus operates in an electric operating mode, and a braking mechanism configured to brake the motor in response to the shaft rotated to each position. The apparatus also includes a disc coupled to, and rotatable with the shaft and including a plurality of blocking parts and slots therebetween and a manual lever including a rotatable part and a projecting part arranged at an end thereto. In an apparatus manual operating mode, the projecting part is rotatable into the disc via one of the slots when the shaft is located at one of the positions, and slides out from the disc via another slot when the shaft is rotated to another one of the positions.

Apparatus for operating an electric switching device

A mechanical interlock assembly for a disconnector and an earthing switch. The mechanical interlock assembly comprises: a main interlock disc configured to actuate a movable contact of a disconnector, and at least one earthing switch interlock disc configured to actuate respective movable contact of at least one earthing switch respectively. The main interlock disc includes at least one first groove, and each of the at least one earthing switch interlock discs includes a third groove, and it is provided with a movable interlock pin between the main interlock disc and each earthing switch interlock disc respectively. The interlock assembly can interlock the disconnector and the at least one earthing switch, and has the advantages of a simple structure, low cost and flexibility for different arrangements. A further mechanical interlock assembly is also provided to interlock another disconnector and one of the above at least one earthing switch.

Mechanical interlock assembly for disconnector and earthing switch

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Beijing, China

Zhipeng Yuan