METHOD FOR DIAGNOSING A SELF-BLOWOUT CIRCUIT BREAKER, AND DIAGNOSIS APPARATUS
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United States of America Patent
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Issued Date -
Oct 1, 2015
app pub date -
Oct 28, 2013
filing date -
Oct 29, 2012
priority date (Note) -
Published
status (Latency Note)
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Abstract
For diagnosing a self-blast circuit breaker (1), a switching operation of the self-blast circuit breaker (1) is triggered to initiate a pressure wave in a filling gas of the self-blast circuit breaker (1). A pressure as a function of time in at least one region of the self-blast circuit breaker (1) which occurs in response to the switching operation is detected. A state of a burn-off nozzle (11) of the self-blast circuit breaker (1) which is burnt off in a switching operation under load for blowing the filling gas onto a switching arc is determined in dependence on the pressure as a function of time.
First Claim
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