公开(公告)号：EP3913648A1

公开(公告)日：2021-11-24

申请号：EP21172882.9

申请日：2021-05-07

申请人： ABB Power Grids Switzerland AG

发明人： XU, Chao ,  ZHAO, Hua ,  YANG, Xiaoli ,  YUAN, ZhiPeng

IPC分类号： H01H3/22 ,  H01H3/26 ,  H01H3/30 ,  H01H9/28

摘要： Embodiments of present disclosure relate to an apparatus for operating an electric switching device. The apparatus comprises: a main shaft configured to be rotated to a plurality of predetermined positions to change a state of the electric switching device; a motor configured to rotate the main shaft via a transmission mechanism when the apparatus operates in an electric operating mode; a braking mechanism configured to brake the motor in response to the main shaft being rotated to each of the plurality of predetermined positions when the apparatus operates in the electric operating mode; a disc coupled to the main shaft and being rotatable along with the main shaft, the disc comprising a plurality of blocking parts and a plurality of slots between the plurality of blocking parts; and a manual lever comprising a rotatable part and a projecting part arranged at an end of the rotatable part, wherein in a manual operating mode of the apparatus, the projecting part is configured to be able to be rotated into the disc via one of the plurality of slots when the main shaft is located at one of the plurality of predetermined positions, and be able to slide out from the disc via another one of the plurality of slots when the main shaft is rotated to another one of the plurality of predetermined positions.