| 摘要 |
PROBLEM TO BE SOLVED: To interlock the wiring connector of the operation control auxiliary circuit of a breaker housed in a board at the operation position of the breaker, and improve the maintainability and the reliability. SOLUTION: A breaker 2 which is housed in the breaker chamber 1a of a power switchgear board is pushed and pulled between an operation position and a disconnection position. The wiring connector 4 of an operation control auxiliary circuit for the breaker 2 is separated from the breaker and provided on a ceiling side in the board. An interlocking device 6 is provided in parallel with the connector 4. On the way of pushing the breaker 2 to move it to the operation position, the locking lever 6a of the locking device 6 which follows the movement of the breaker 2 is made to protrude in front of the connector to prevent the plug of the connector 4 from being removed from a socket. |
