Circuit protection system
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United States of America Patent
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Jul 3, 2012
Grant Date -
Oct 18, 2007
app pub date -
Jun 20, 2007
filing date -
Feb 25, 2002
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A method and apparatus is disclosed for providing protection against arc flash during maintenance on a low voltage power circuit including a circuit breaker having a specified trip function for responding to a fault is provided. The specified trip function is overridden with a maintenance trip function that results in reduced arc energy in the fault during a trip over arc energy during a trip with the specified trip function. The specified trip function is restored following maintenance.
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