Uninterruptible power supply with an automatic transfer switch

Details Uninterruptible power supply with an automatic transfer switch Uninterruptible power supply with an automatic transfer switch

1997-07-16

1999-08-17

Paladini, Albert W.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 45, 307 46, 307 66, 39518212, 39575001, H02J 906

Patent

active

059397993

ABSTRACT:
Power is supplied to a load from either a first power source or a second power source. A transfer switch determines which of the power sources provides the power to the load. A switch control detects a loss in the power provided by a first power source and signals the transfer switch to switch to a second power source. A small energy storage device provides power to the load, during the switch from the first power source to the second power source.

REFERENCES:
patent: 4277692 (1981-07-01), Small
patent: 4340823 (1982-07-01), Miyazawa
patent: 4638175 (1987-01-01), Bradford et al.
patent: 5049805 (1991-09-01), Celenza et al.
patent: 5111058 (1992-05-01), Martin
patent: 5767591 (1998-06-01), Pinkerton

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