Electricity: measuring and testing – Electromechanical switching device – Circuit breaker
Reexamination Certificate
2005-11-08
2005-11-08
Nguyen, Vincent Q. (Department: 2858)
Electricity: measuring and testing
Electromechanical switching device
Circuit breaker
C324S423000, C361S113000
Reexamination Certificate
active
06963203
ABSTRACT:
A method for analyzing an electrical contact pair is provided. At least one of the contacts is coupled to a line-side of the contact pair, and at least one of the contacts is coupled to a load-side of the contact pair. The method includes electrically coupling the load-side contact and the line-side contact to electrical ground, applying a test voltage across the contact pair while the line-side contact and load-side contact remain electrically coupled to electrical ground, triggering a contact pair operation timer at a start of a test, detecting at least one of a first closure of the contact pair and a first opening of the contact pair using the test voltage, and determining the timing of the contact pair based upon the operation of the contact pair operation timer.
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Stanisic Zoran
Wernli Heinz
Armstrong Teasdale LLP
Benson Walter
Nguyen Vincent Q.
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