发明名称 |
MULTI-PHASE VOLTAGE SENSING SWITCHING DEVICE |
摘要 |
<p>The disclosure describes a device for detecting undervoltage conditions on multi-phase alternating current circuits which senses the voltage on the phase having the highest instantaneous positive voltage. A differential between pickup and dropout voltage is provided. Also provided is a delayed pickup following a return to normal voltage on the circuit being monitored.</p> |
申请公布号 |
CA1024610(A) |
申请公布日期 |
1978.01.17 |
申请号 |
CA19750229334 |
申请日期 |
1975.06.13 |
申请人 |
WESTINGHOUSE ELECTRIC CORPORATION |
发明人 |
MATSKO, JOSEPH J. |
分类号 |
H02H3/253;H02H7/22;(IPC1-7):02H3/24 |
主分类号 |
H02H3/253 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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