PULSED MISSING GROUND DETECTOR CIRCUIT
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United States of America Patent
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app pub date -
Apr 30, 2012
filing date -
Apr 28, 2011
priority date (Note) -
Abandoned
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Abstract
In one implementation, a method is provided to detect a ground fault. This includes applying a pulsed test impedance and detecting a utility power voltage with and without the pulsed test impedance applied. It further includes detecting a test current through the pulsed test impedance to ground and determining whether a ground fault exists based on the detected test current and the detected utility power voltage with and without the pulsed test impedance applied.
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