Electricity: measuring and testing – Fault detecting in electric circuits and of electric components – Of ground fault indication
Reexamination Certificate
2007-04-19
2009-12-01
Nguyen, Vincent Q (Department: 2831)
Electricity: measuring and testing
Fault detecting in electric circuits and of electric components
Of ground fault indication
C324S555000
Reexamination Certificate
active
07626397
ABSTRACT:
A circuit testing closer may include a fault isolating switching device coupled between a supply side and a load side of a power distribution system and a current pulse generator coupled in parallel to the switch to generate a current pulse within the power distribution system subsequent to a fault isolation for testing the power distribution system. The current pulse generator may include an electromechanical actuator, an electromagnetic actuator or a solid state switching device. The circuit testing closer may be a purpose-built combination device, or the fault isolating switching device and the current pulse generator may be separately coupled and commonly controlled devices. The fault isolating switching device may have continuous current rating greater than a continuous current rating of the pulse generating device.
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Qiang, et al. A New Adaptive Autoreclosure Scheme to Distinguish Transient Faults from Permanent Faults, Power System Technology Proceedings, Oct. 13, 2002, vol. 2, pp. 671-674.
Lettow Christopher R.
Montenegro Alejandro
O'Leary Raymond P.
Opfer John C.
Tucker, Jr. Albert B.
Nguyen Vincent Q
S & C Electric Company
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