Advance and retard phase-shift transformer

Details Advance and retard phase-shift transformer Advance and retard phase-shift transformer

1983-10-03

1985-02-19

Wong, Peter S.

Electricity: power supply or regulation systems

For phase shift or control

Using transformer

323216, 336143, 336183, H02J 300, G05F 300

Patent

active

045008299

ABSTRACT:
A phase-shift transformer circuit providing advance or retard phase shift at any predetermined phase shift angle. The phase shift angle is determined by the ratio of the main and short windings of the transformer primary. Two links are used to provide advance or retard phase shift. One transformer winding is connected directly to a phase conductor of the three-phase power system. The remaining two transformer windings are connected to the remaining two phase conductors via the links. The links are movable such that in the advance configuration, the phase two conductor is connected to one of the transformer windings and the phase three conductor is connected to the other. In the retard phase-shift configuration, the links are moved so that the connections are reversed.

REFERENCES:
patent: 1745159 (1930-01-01), Frank
patent: 2290233 (1942-07-01), Gilliver et al.
patent: 2292829 (1942-08-01), Garin
patent: 2330088 (1943-09-01), Palley
patent: 2369038 (1945-02-01), Garin
patent: 2410721 (1946-11-01), Dome
patent: 2421299 (1947-05-01), Johnson
patent: 2794948 (1957-06-01), Thompson et al.
patent: 2905882 (1959-09-01), Koppelmann

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