Summing transformer for star-delta inverter having a single seco

Details Summing transformer for star-delta inverter having a single seco Summing transformer for star-delta inverter having a single seco

1990-01-04

1993-01-05

Kozma, Thomas J.

Inductor devices

Polyphase

Interconnected windings

336184, 336212, 336215, 363 43, H01F 3300, H01F 2728

Patent

active

051774607

ABSTRACT:
A summing transformer for a star-delta inverter having a single secondary winding for each group of primary windings for use in inverting variable frequency AC power into constant frequency AC power, the transformer comprising a plurality of core elements having principal legs on which primary windings are wound and secondary legs extending from said principal legs establishing flux paths, the legs of each core element defining apertures through which a single winding is magnetically linked to a group of primary windings.

REFERENCES:
patent: 2644109 (1953-06-01), Mulder
patent: 3221280 (1965-11-01), Malsbary et al.
patent: 3241048 (1966-03-01), Lee
patent: 3775662 (1973-11-01), Compoly et al.
patent: 4112403 (1978-09-01), Friedlander
patent: 4274071 (1981-06-01), Pfarre
patent: 4634958 (1987-01-01), Cornwell
patent: 4678986 (1987-07-01), Barthelemy
patent: 4947100 (1990-08-01), Dhyachand et al.
patent: 4968926 (1990-11-01), Dhyanchand

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