发明名称 |
DETECTION OF GROUND FAULTS IN UNGROUNDED DC POWER SUPPLY SYSTEMS |
摘要 |
<p>An apparatus for detecting a ground fault in an ungrounded DC power supply system having a DC power supply connected by positive and negative lines to a load, an AC voltage is selectively applied between a positive line and ground or between a negative line and ground. A current sensor including an electrical coil surrounding the positive and negative lines is responsive to significant alternating current in one of the lines, when the AC voltage is applied to the line and the line has a ground fault, to thereby indicate the fault.</p> |
申请公布号 |
CA1219634(A) |
申请公布日期 |
1987.03.24 |
申请号 |
CA19840464177 |
申请日期 |
1984.09.27 |
申请人 |
FEDERAL PIONEER LIMITED |
发明人 |
MACPHEE, COLIN A.A.;YOON, OHJHONG |
分类号 |
G01R27/18;G01R31/02;(IPC1-7):G01R31/08 |
主分类号 |
G01R27/18 |
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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