Automatic cut-out device

Details Automatic cut-out device Automatic cut-out device

1978-02-13

1979-01-30

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

361187, 307 10BP, H02H 324

Patent

active

041375572

ABSTRACT:
A device for cutting out non-essential loads in a generator and battery-fed electric plant includes a voltage detecting unit connected across the terminals of the battery. The detecting unit may be a relay. Whenever the voltage at the terminals falls below a predetermined level, the detecting unit effects the disconnection of the non-essential load or loads from the terminals of the battery and generator, while allowing the essential load or loads. The detecting unit preferably includes a differential amplifier having one of its inputs connected to a voltage divider connected in parallel with the battery and its second input coupled to a source of reference potential.

REFERENCES:
patent: 3046455 (1962-07-01), Nelson et al.
patent: 3522481 (1970-08-01), Terzic
patent: 3532968 (1970-10-01), Overlie
patent: 3656045 (1972-04-01), Frezzolini et al.
patent: 3911360 (1975-10-01), Kimzey

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