| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a circuit breaker feeding system which eliminates possible danger on an operator for maintenance service when feeding a circuit breaker from the case of a switchgear at maintenance service of switchgear. <P>SOLUTION: The circuit breaker feeding system of a switch gear comprises a circuit breaker of main circuit provided in the case of the switchgear, a door fitted to the case that houses the circuit breaker, and a circuit breaker position sensor which detects moving position of the circuit breaker in the case of the switch gear. A first insert opening through which an operation handle is inserted for feeding the circuit breaker is formed on the door. A second insert opening for moving the circuit breaker by operating the operation handle engaged with that inserted operation handle is formed on the circuit breaker. A first solenoid device is provided for locking/unlocking the door. A control unit is provided which locks the door by issuing an instruction signal to the first solenoid device, based on the detection signal from the position sensor of the circuit breaker. <P>COPYRIGHT: (C)2008,JPO&INPIT |
