发明名称 PHASEELACK PROTECTION DEVICE
摘要 PURPOSE:To provide alarm when a failure occurs in a power fuse or a circuit breaker, by detecting voltages on both sides of the power fuse by means of respective voltage dividing capacitors and comparing the detected voltages by a differential voltage circuit.
申请公布号 JPS548845(A) 申请公布日期 1979.01.23
申请号 JP19770074018 申请日期 1977.06.21
申请人 MITSUBISHI ELECTRIC CORP 发明人 SATOU HIROSHI
分类号 H02H3/28;H02H3/34 主分类号 H02H3/28
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