Multiple circuit overload protection device

Details Multiple circuit overload protection device Multiple circuit overload protection device

1991-04-24

1993-07-20

Stephan, Steven L.

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

307511, 307 39, 307 11, H02H 318, H02H 326, H02H 342

Patent

active

052299082

ABSTRACT:
A sensor connected to two different phases of an electrical wiring system provides positive protection against overloading of any single phase by preventing operation of one circuit load when there is no phase difference between the wiring circuits.

REFERENCES:
patent: 3944891 (1976-03-01), McDonald et al.
patent: 4451823 (1984-05-01), Penn et al.
patent: 4528456 (1985-07-01), Harris
patent: 4532569 (1985-07-01), Salcedo
patent: 4695738 (1987-09-01), Wilmot
patent: 4743864 (1988-05-01), Nakagawa et al.
patent: 4915162 (1990-04-01), Ikura

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