System for switching a load between two sources

Details System for switching a load between two sources System for switching a load between two sources

1979-10-09

1981-04-14

Hix, L. T.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Circulating- or inter-current control or prevention

307 70, 361 6, 361 92, H02J 906

Patent

active

042622140

ABSTRACT:
A system is disclosed for switching a load between two ac sources wherein no degree of synchronization therebetween is required and wherein the switching is accomplished with the use of two electro-mechanical relays each having a three pole, double throw contact arrangement. Furthermore, this load switching is accomplished without the production of any interpower currents between the two sources.

REFERENCES:
patent: 2221604 (1940-11-01), Peterson et al.
patent: 3638040 (1972-01-01), Mahmoud
patent: 3808451 (1974-04-01), Pittet
patent: 4189649 (1980-02-01), Przywozny et al.

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