Universal phase match path generator for three-phase power

Details Universal phase match path generator for three-phase power Universal phase match path generator for three-phase power

1993-08-13

1994-05-10

Logan, Sharon D.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Connecting or disconnecting

307 66, 307 64, 307 82, H02J 300

Patent

active

053110668

ABSTRACT:
A method for the transferring of 3 phase, asynchronous AC power between a present source supplying power to a load and an alternative source to supply power to the load. The maximum phase displacement is 60 electrical degrees at the load. The transfer can occur between sources which are rotating "forward" or "backward" with respect to each other or jointly with respect to the load. Either present source, alternate source or the load may be used as the timing reference for determining best phase connection of the alternate source to the load.

REFERENCES:
patent: 4021704 (1977-05-01), Norbeck
patent: 4667264 (1987-05-01), Yamazaki et al.
patent: 4761563 (1988-08-01), Ross et al.
patent: 4937462 (1990-06-01), Recker et al.
patent: 5182464 (1993-01-01), Woodworth et al.

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