Transformer with cancellation of harmonic currents by phase shit

Details Transformer with cancellation of harmonic currents by phase shit Transformer with cancellation of harmonic currents by phase shit

1991-11-15

1993-04-27

Pellinen, A. D.

Electrical transmission or interconnection systems

With harmonic filter or neutralizer

336 5, H02J 301, H01F 3300

Patent

active

052065391

ABSTRACT:
A harmonic current filtering transformer includes a three-phase input winding and at least two wye-connected three-phase output windings. The output windings are phase shifted relative to each other by an amount which causes harmonic currents generated by a non-linear load to magnetically cancel in the transformer core.

REFERENCES:
patent: 2470598 (1949-05-01), Biebesheimer
patent: 2482489 (1949-09-01), Kaiser
patent: 3671901 (1972-06-01), Lys
patent: 4513240 (1985-04-01), Putman
patent: 4513243 (1985-04-01), Novak et al.
patent: 4779181 (1988-10-01), Traver et al.
patent: 4858100 (1989-08-01), Tatara
patent: 5063487 (1991-11-01), Johnson et al.

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