Power distribution system with means for sensing emergency condi

Details Power distribution system with means for sensing emergency condi Power distribution system with means for sensing emergency condi

1982-02-24

1983-08-23

Hix, L. T.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

H02J 700

Patent

active

044006268

ABSTRACT:
A power generating and distribution system employs primary and emergency back-up standby generators with the primary generator normally powering a conversion supply from which critical supplies are directly connected to a user system and non-critical supplies are selectively connected to the user system through electronic switching devices. The switching means are activated by a monitor control which compares a sample of the primary generator voltage level with a reference level of the generator output powering the conversion supply and generates a control signal to close the electronic switching devices only when the monitor sample exceeds the monitor reference.

REFERENCES:
patent: 3778634 (1973-12-01), Hanrihan
patent: 4099692 (1978-07-01), Kolkman
patent: 4216384 (1980-08-01), Hurley
patent: 4349148 (1982-09-01), Liberto et al.
patent: 4356402 (1982-10-01), Morimoto et al.

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