SELF-BLAST CIRCUIT BREAKER USING THE TWO-PHASE STATE OF A GAS TO IMPROVE THE CUT-OFF PROPERTIES
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United States of America Patent
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app pub date -
Jul 8, 2015
filing date -
Jul 8, 2014
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Abandoned
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Abstract
A breaking chamber (1) for a medium- or high-voltage circuit breaker extending along a longitudinal axis (XX′) and comprising: a pair of arcing contact (4, 5), at least one (5) of which is movable along the longitudinal axis (XX′); an arc-blast nozzle (6); a blast chamber (7), having a volume V2 that is constant and that opens out inside the blast nozzle; a compression chamber (8), arranged substantially behind the blast chamber, and structures (73, 81) for putting the internal volume of the compression chamber (8) into communication with the internal volume of the blast chamber (7); and structures (14, 15, 50), disposed substantially behind the compression chamber (8), in order to deliver liquid, either into the compression chamber (8), or directly into the blast chamber (7).
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