Building service ground fault interrupter

Details Building service ground fault interrupter Building service ground fault interrupter

2009-05-06

2011-10-25

Patel, Dharti (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

C361S043000, C361S044000, C361S045000, C361S046000, C361S047000, C361S048000, C361S049000

Reexamination Certificate

active

08045303

ABSTRACT:
A ground fault interrupter to be used by utility company while effecting repairs to the electrical service for a building is positioned to interrupt the power supply to the building in case of a detected ground fault and utilizes a sensor for detecting the fault current at the service entrance to a building; a contact switch, selectively movable between open and closed positions, mounted for temporary use in series with said power supply to the building; and a microprocessor based circuit for measuring and evaluating fault current detected by the sensor and controlling the selective movement of the contact switch between its open and closed positions.

REFERENCES:
patent: 4546309 (1985-10-01), Kang et al.
patent: 5459630 (1995-10-01), MacKenzie
patent: 5630954 (1997-05-01), Toth
patent: 2006/0190140 (2006-08-01), Soni
patent: 2006/0252304 (2006-11-01), Shoop et al.
patent: 2008/0204955 (2008-08-01), Parker et al.

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