Method and apparatus for the measurement of a resistance of a switching contact of an electrical circuit breaker
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United States of America Patent
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Jan 17, 2017
Grant Date -
Nov 12, 2015
app pub date -
Jul 21, 2015
filing date -
Aug 24, 2012
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Abstract
An apparatus and method for the measurement of a resistance of a switching contact of an electrical circuit breaker. A first resistance value across the circuit breaker is determined while the circuit breaker is grounded at both sides and the switching contact is closed. Further, a second resistance value across the circuit breaker is determined while the circuit breaker is grounded at both sides and the switching contact is open. The resistance of the closed switching contact is then determined based on the first resistance value and the second resistance value.
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