发明名称 |
AC Detector for DC ground faults and high capacitance in high-voltage DC power supplies |
摘要 |
A ground fault detector for use in combination with a floating secondary circuit of a direct current high voltage power supply comprising a detector circuit for sensing a relatively low electrical impedance. The existence of a low impedance represents a ground fault current between a part of the secondary circuit of the high voltage power supply and chassis ground to generate an alternating voltage. A rectifying circuit is operatively connected to the detector circuit for rectifying the alternating voltage. A warning indication network is responsive to the rectified alternating voltage for visually indicating the presence of the ground fault current.
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申请公布号 |
US4188574(A) |
申请公布日期 |
1980.02.12 |
申请号 |
US19780890071 |
申请日期 |
1978.03.27 |
申请人 |
INSTRUMENTATION SPECIALTIES |
发明人 |
ALLINGTON, ROBERT W |
分类号 |
G01R27/18;G01R31/02;H02H3/50;(IPC1-7):G01R31/02 |
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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