| 摘要 |
PROBLEM TO BE SOLVED: To make an enclosed panel compact, by improving the configuration and the arrangement of an interlock mechanism which interlocks the circuit breaker accommodated in the panel of a switch gear with a panel door and enhancing the space efficiency in the panel. SOLUTION: The switch gear includes a drawer device 5, having a drawer type high voltage circuit breaker 3 mounted on a cradle 2 constructed in the enclosed panel 1 and moving the circuit breaker to operation/testing position for operation, and the interlock mechanism 6 which locks the panel door 1a of the enclosed panel in a closing position at the operating position of the circuit breaker. The switch gear is constituted of a seesaw-type lever 6a having the interlock mechanism 6, arranged in parallel on the drawer device 5 side and installed near the center of the bottom part of the cradle; an energizing spring 6e for energizing the lever rear part of the seesaw-type lever to be pressed on the roller type dog 6b mounted on the truck bottom side of the circuit breaker; and a hook part 6d formed at the lever tip end, where the hook part 6d engages with the latch 8, provided on the rear surface of the panel door 1a at the operating position of the circuit breaker to lock the panel door at the closing position. COPYRIGHT: (C)2008,JPO&INPIT |
