| 摘要 |
PURPOSE: In repairing the vacuum breaker used as a high current breaker, the main breaker circuit part should be detached from the mounting frame where the current enters and exits. The inconvenience that the operator should move back with the detaching handle and open the switchboard door, is removed and the operator can move the breaker transfer unit in one place. CONSTITUTION: The breaker(400) advances and retreats the carriage installed on the top of the fixed carriage transfer device. The carriage is advanced or retreated by the handle (213), which is within a regular distance from the fixed carriage transfer unit (500). And the fixing device is provided to fix the carriage transfer device.
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