Transfer apparatus for energy sources

Details Transfer apparatus for energy sources Transfer apparatus for energy sources

1977-04-14

1978-07-11

Blix, Trygve M.

Railway switches and signals

Block-signal systems

Automatic

307 64, H02J 906

Patent

active

040996921

ABSTRACT:
First and second monitoring channel apparatus detect the level of the normal output and load current, respectively, supplied by a principal energy source to a variable load network. Source output varies from normal to low level and load current from low to high level as load network varies between relatively no load and heavy load conditions. The monitor channel detection signals are checked through a logic circuit so that if at least one exceeds a predetermined level indicating the operable condition of the principal source, a registry device is actuated to hold the energy supply leads to the load network connected to the principal source. If neither monitor detects an operable condition of the source, the registry device is operated to activate, and transfer the load energy supply leads to, a standby source.

REFERENCES:
patent: 1681158 (1928-08-01), Anderson
patent: 1756589 (1930-04-01), Gilson
patent: 3201592 (1965-08-01), Reinert

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