Ground-fault circuit interrupter

Details Ground-fault circuit interrupter Ground-fault circuit interrupter

1976-03-24

1978-02-28

Miller, J D

Electricity: electrical systems and devices

Safety and protection of systems and devices

Ground fault protection

361 42, H02H 316

Patent

active

040770567

ABSTRACT:
A ground-fault circuit interrupter has normally open relay contacts connected in series between an incoming hot line and an outgoing hot line. A coil of a detector relay is connected between the outgoing ground line and the outgoing cold line and closes when even a slight voltage differential appears between the outgoing ground line and outgoing cold line. Closing of the detector relay illuminates a short-indicating lamp and causes a further relay to latch on and disconnect the relay whose contacts are connected between the incoming hot line and outgoing hot line so that the device connected to the outgoing hot line is open-circuited. A reset button is provided for placing the circuit back in operative condition with a green OK lamp lighted.

REFERENCES:
patent: 2622139 (1952-12-01), Dodd
patent: 2660717 (1953-11-01), Hood
patent: 2881361 (1959-04-01), Wood
patent: 3483431 (1969-12-01), Gilbert
patent: 3676738 (1972-07-01), Scanlan

Affiliated with

Also associated with

Rating

Ground-fault circuit interrupter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Ground-fault circuit interrupter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Ground-fault circuit interrupter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1678794