Phase shifter

Details Phase shifter Phase shifter

1975-07-21

1977-03-22

Pellinen, A. D.

Electricity: power supply or regulation systems

Remote sensing

323120, H02J 300

Patent

active

040139425

ABSTRACT:
A phase shifter having two multiwinding transformers. The primary windings of the like phases of different transformers are connected in series and arranged in a three-phase system. The secondary windings of unlike phases of different transformers are interconnected and form two three-phase output voltage sets. Each transformer has control windings connected to respective switching devices. Actuation of a respective switching device provides for changing the phase angle between the three-phase output voltage sets from 0.degree. to 120.degree. or 180.degree..

REFERENCES:
patent: 2421300 (1947-05-01), Stephens
patent: 3184675 (1965-05-01), Macklem
patent: 3610944 (1971-10-01), Mitsui et al.
patent: 3611224 (1971-10-01), Becker

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