A mechanism for the synchronized operation of closing and opening of a switching device and a selector device in a switchgear

摘要

The present invention discloses a 4-position mechanism for the synchronized operation of closing and opening of a vacuum bottle switching device and a selector device. The synchronized operation is achieved with the help of interlock arrangements. Each of the vacuum bottle switching device and the selector device comprise separate energy storage and releasing means. Energy is loaded into both the devices by the user input with the help of dedicated levers. The movement in the output shafts is observed only after the dead point has been reached. Any movement from dead point to the main output shaft is transmitted through articulated levers. In the vacuum bottle switching device, conversion of energy makes the main shaft translate in one direction to close the switch and also, stores energy for translation of the shaft in opposite direction to open the switch. Said interlock arrangements are configured such that upon insertion of a removable handle into an accessible handle receptor (33,14,38) of any one of the selector operating means, switching device operating means or earth operating means, the access to the remaining operating means is blocked.