Arrangement for ground-fault detection in an AC circuit and power supply arrangement with ground-fault detection
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United States of America Patent
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Jul 23, 2013
Grant Date -
Oct 11, 2012
app pub date -
Nov 17, 2011
filing date -
Apr 13, 2011
priority date (Note) -
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Abstract
The invention relates to an arrangement (10) for ground fault monitoring of an AC circuit between, on one hand, a neutral conductor (N′) of the AC circuit and, on the other hand, a protective ground wire (PE) or a ground wire with a series connection of ohmic resistors (R1, R2, R3), which has a first terminal (101) for the neutral conductor (N′) and a second terminal (102) for the protective ground wire (PE) or ground wire, wherein the arrangement includes at least one means for detecting a break of one of the resistors (R1, R2, R3) of the series connection.
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