High impedance fault detection
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United States of America Patent
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Sep 17, 2002
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N/A
app pub date -
Jul 21, 1998
filing date -
Jul 21, 1998
priority date (Note) -
Expired
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Abstract
An improved high impedance fault (HIF) detection system comprises an analyzer located at a circuit breaker or substation with feeders, wherein the analyzer analyzes current and/or voltage waveforms to detect a HIF on the feeder or on one of a plurality of laterals coupled to the feeder; a plurality of remote outage detectors located respectively at corresponding customer sites, each remote outage detector including a mechanism to detect a loss of potential or power at the corresponding site; and a computer in communication with the analyzer and the remote outage detectors.
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