Door interlock device for transformer room of vacuum circuit breaker
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United States of America Patent
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Aug 15, 2017
Issued Date -
N/A
app pub date -
Sep 4, 2014
filing date -
Oct 16, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A door interlock device for a power transformer room in a vacuum circuit breaker includes a cam disposed on a shaft of a ground switch, a supporter disposed on a side plate of a power transformer room, a shaft disposed at the supporter to be slidable and having one end contacting the cam to be upward and downward movable, a spring disposed within the supporter to provide an upward elastic force to the shaft, and an interlock plate disposed at one side of the power transformer room door and configured to be in contact with the shaft.
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