| 摘要 |
PURPOSE:To enable the changeover of a feeder system without interruption by making the breaker of the system to be the target of changeover, and making the breaker of the system on the standby side with a series of system changeover, and then, opening the breaker of the system in system feeder. CONSTITUTION:When an 'on' command is given to the making coil of an auxiliary disconnecting switch 7 by a remote controller 21, the auxiliary disconnecting switch 7 is made, and it's own normally-open contact 7s is closed, and the making coil of the auxiliary breaker 5 is excited, and an auxiliary breaker 5 is made. When the auxiliary breaker 5 is made, by the closing of it's own normally-open contact 5a and a normally-open contact 7a, the trip coil of the working breaker 1 is excited, and the working breaker 1 is opened. The trip coil of the working breaker 6 is excited, and the changeover from the working system to the auxiliary system is completed. |
