Patent ID: 9208978
Filing Date: 2015-12-08
Classification: H01H

Abstract:
1. An electromagnetic operating device comprising: an electromagnet mechanism which performs opening and closing operation of a circuit breaker and is coaxially disposed with a vacuum interrupter that is disposed in said circuit breaker, and which has a movable core and a fixed core arranged facing with each other and has an electromagnetic coil that makes said movable core and said fixed core separate or come into contact in response to electromagnetic force; a driving rod which is movably disposed in the axial direction of said electromagnet mechanism and is coupled to said movable core, and in which one side is coupled to said circuit breaker and the other side passes through an opening side end plate of said electromagnet mechanism to be extended outward from said opening side end plate of said electromagnet mechanism along a longitudinal central axis of the driving rod; an interrupting spring that is held at a predetermined position on a side of said opening side end plate of said electromagnet mechanism; and an indication unit which is disposed on the same side of said opening side end plate of said electromagnet mechanism as said interrupting spring and which is offset from the longitudinal central axis of the driving rod, and indicates a state of said circuit breaker in conjunction with the movement of said driving rod.