| 摘要 |
PROBLEM TO BE SOLVED: To prevent damage to fixed and movable auxiliary contacts so as to extend the intervals between parts replacement times and to stably shut off small currents by reducing the time for the arc generation of both of the auxiliary contacts during operations for shutting off small currents. SOLUTION: In this disconnect switch contact part, a movable auxiliary contact 10 is attached to a movable contact 2 attached to the end of a blade 1, and during an open circuit operation, after the movable contact 2 is separated from a fixed contact 3, the movable auxiliary contact 10 is separated from the fixed auxiliary contact 6, whereby the operation of releasing small currents is achieved. In this case, the movable auxiliary contact 10 is attached to the movable contact 2 via a spring 14 and is electrically connected to the movable contact 2 by a flexible conductor 13, and during the open circuit operation the movable auxiliary contact 10 is made to separate from the fixed auxiliary contact 6 by the stored energy of the spring 14.
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