Wireless emergency power interrupting system for multibranch cir

Details Wireless emergency power interrupting system for multibranch cir Wireless emergency power interrupting system for multibranch cir

1977-12-09

1979-08-14

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

324 51, 361 42, H02H 316

Patent

active

041647718

ABSTRACT:
A system for the emergency deenergization of a multibranch power circuit includes a ground fault circuit interrupter having capability to trip under both ground fault and grounded neutral conditions. A plurality of receptacles are provided on the circuit to receive connecting plugs of electrical devices to be powered. A removable plug adapted for insertion into any of the receptacles includes the series combination of a normally open pushbutton switch and resistor connected between plug pins which are in contact with the neutral and ground conductors of the circuit so that actuation of the switch when the plug is inserted in a receptacle establishes a low-impedance path from neutral to ground which is detected by the ground fault circuit interrupter. This causes the interrupter to trip and deenergize the circuit.

REFERENCES:
patent: 3611038 (1971-10-01), Benham
patent: 3698111 (1972-03-01), Howe
patent: 3713003 (1973-01-01), Benham
patent: 3898557 (1975-08-01), Strock
patent: 3984765 (1976-10-01), Rocci, Jr.

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