Method and apparatus for transfer control and undervoltage...

Details Method and apparatus for transfer control and undervoltage... Method and apparatus for transfer control and undervoltage...

2005-04-12

2005-04-12

Sircus, Brian (Department: 2836)

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

C307S029000, C307S080000, C307S085000

Reexamination Certificate

active

06879060

ABSTRACT:
An automatic transfer switch is disclosed that features a novel arrangement for detecting a failure of the power source as well as a novel arrangement for preventing cross-conduction between the first and second signal sources during a rapid transfer.

REFERENCES:
patent: 4152634 (1979-05-01), Penrod
patent: 4289941 (1981-09-01), Cannon
patent: 4604557 (1986-08-01), Cowles
patent: 4811163 (1989-03-01), Fletcher
patent: 5041775 (1991-08-01), Erdman
patent: 5629658 (1997-05-01), Chen
patent: 6064172 (2000-05-01), Kuznetsov

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