Reclosing system for power transmission line
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United States of America Patent
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Jun 11, 2013
Grant Date -
Jul 14, 2011
app pub date -
Mar 18, 2011
filing date -
Sep 18, 2008
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
There is provided a reclosing system for a power transmission line, which performs high-speed reclosing using protection relays. The protection relays are provided at different terminals of the power transmission line. Each of the protection relays is configured to send the reclosing command to the circuit breaker when a line voltage at the phase with the accident, detected by the metering voltage transformer after the phase with the accident is cut off, falls within an allowable range. The allowable range is determined based on a line voltage assumed at the phase when the phase is normal.
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