Traveling wave based relay protection
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United States of America Patent
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May 19, 2009
Grant Date -
Jan 19, 2006
app pub date -
Jul 15, 2004
filing date -
Jul 15, 2004
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An apparatus includes at least one Rogowski coil and a processor. The at least one Rogowski coil is positioned within an electrical power distribution network to detect a first traveling wave current caused by a fault on an electrical power transmission line of the network, generate a first signal indicative of detection of the first traveling wave, detect a second traveling wave current caused by the fault on the transmission line, and generate a second signal indicative of detection of the second traveling wave. The processor is adapted to receive the first signal and the second signal and to determine, based on the first signal and the second signal, where on the transmission line the fault occurred.
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