Ground fault circuit Interrupter with enhanced range

Details Ground fault circuit Interrupter with enhanced range Ground fault circuit Interrupter with enhanced range

1998-04-13

1999-08-31

Gaffin, Jeffrey

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 45, H02H 316

Patent

active

059461730

ABSTRACT:
A ground fault circuit interrupter comprises a transformer having a saturable core; a secondary winding on the core; an integrating detector coupled to the secondary winding; and a pulse stretcher connected between the secondary winding and the differential detector for stretching high voltage short duration pulses sufficiently to allow them to be detected by the detector.

REFERENCES:
patent: 3962606 (1976-06-01), Burns et al.
patent: 5231309 (1993-07-01), Soma et al.

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