Phase shifting transformer with low zero phase sequence impedanc

Details Phase shifting transformer with low zero phase sequence impedanc Phase shifting transformer with low zero phase sequence impedanc

1994-04-20

1998-09-01

Sough, Hyung S.

Inductor devices

Polyphase

Interconnected windings

H01F 3300

Patent

active

058016104

ABSTRACT:
A phase shifting transformer or autotransformer for a three phase power distribution network has a secondary winding including a plurality of windings distributed amongst the three core legs such that on each core leg the number of turns of windings generating a flux in the positive direction is substantially equal to the number of turns of windings generating a flux in the negative direction. Thus, according to the invention, the transformer may be provided with any necessary phase shifting angles between different harmonic sources, with outputs each having a very low zero phase sequence impedance to reduce voltage distortion created by zero phase sequence harmonics.

REFERENCES:
patent: 1159228 (1915-11-01), Keidel et al.
patent: 1814557 (1931-07-01), Jonas
patent: 1953233 (1934-04-01), Jonas
patent: 2212399 (1940-08-01), Kochling
patent: 2312571 (1943-03-01), Meyer
patent: 2357995 (1944-07-01), Blomberg et al.
patent: 2560385 (1951-02-01), Dessarzin
patent: 3504318 (1970-03-01), Wilburn et al.
patent: 4531085 (1985-07-01), Mesenhimer
patent: 4812669 (1989-03-01), Takeda et al.
patent: 4896092 (1990-01-01), Flynn
patent: 4967334 (1990-10-01), Cook et al.
patent: 5206539 (1993-04-01), Kammeter
patent: 5331303 (1994-07-01), Shiota
Robert H. Lee, "Eliminating Harmonic Currents Using Transformers": Power Quality; Sep./Oct., 1991; pp. 33-37.
Prem P. Khera, "Application of Zigzag Transformers for Reducing . . . System"; .COPYRGT.IEEE, 1990.

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