Arc fault circuit interrupter test circuit and test board

Details Arc fault circuit interrupter test circuit and test board Arc fault circuit interrupter test circuit and test board

2007-07-10

2007-07-10

Crosland, Donnie L. (Department: 2612)

Communications: electrical

Condition responsive indicating system

With particular system function

C340S515000, C340S659000, C340S003430, C324S500000, C324S536000, C324S763010, C361S042000, C361S078000

Reexamination Certificate

active

11147846

ABSTRACT:
A tester for an arc fault circuit interrupter that can selectively simulate and apply electrical arc faults and nuisance loads to at least one device under test (DUT). The tester includes a power supply, a test controller, and test circuitry coupleable to a DUT. AC power input is provided to the DUT and the power supply, which regulates the AC power input to a DC level for powering the test controller. The test circuitry full wave rectifies AC current returning from the DUT, and the test controller controls a switch in the test circuitry. When the switch is on, the AC current flows through the DUT, the full wave rectifier, the load, and the switch to ground. To simulate an arcing condition, the test controller turns the switch on and off at random intervals. To simulate a nuisance load condition, the test controller turns the switch on and off at periodic intervals. In this way, proper operation of the DUT can be verified under both arcing and nuisance load conditions.

REFERENCES:
patent: 6313642 (2001-11-01), Brooks
patent: 6876204 (2005-04-01), Smith
patent: 2002/0149891 (2002-10-01), Neiger et al.
patent: 2003/0160619 (2003-08-01), Parker
patent: 2004/0109269 (2004-06-01), Kawate et al.
U.S. Appl. No. 10/937,487, filed Sep. 9, 2004 entitled Method for Detecting Arc Faults.
U.S. Appl. No. 10/314,715, filed Dec. 9, 2002 entitled Arc Detection Apparatus and Method.

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