Electrical switchgear
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United States of America Patent
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-
Apr 23, 1985
Grant Date -
N/A
app pub date -
Feb 23, 1984
filing date -
Feb 28, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An electrical switchgear having a position detector that detects the state of actuation of switch contacts and a position detector which judges the locking engagement condition of the switch contacts, wherein these position detectors are connected with an optical control unit by an optical cable.
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