Power transformer for cycloconverters

Details Power transformer for cycloconverters Power transformer for cycloconverters

1992-04-21

1994-07-19

Thomas, L.

Inductor devices

Polyphase

Interconnected windings

336170, 336 5, H01F 3300

Patent

active

053313038

ABSTRACT:
A power transformer for cycloconverters comprises an iron core having three legs, nine positive group windings, nine negative group windings, and nine power supply windings. Three of the positive group windings, three of the negative group windings and three of the power supply windings are wound on each leg of the iron core. In application to the cycloconverters, three positive and negative group windings are allotted to each of three converters of the cycloconverter so that the three-phase AC voltages are applied to the three converters respectively. The three power supply windings are allotted to each pair of positive and negative group windings so that a winding circuit impedance becomes equal between the positive and negative group windings. These windings are arranged into a single transformer in which the windings are magnetically connected together by one three-leg core.

REFERENCES:
patent: 2374029 (1945-04-01), Maslin
patent: 4513243 (1985-04-01), Novak et al.
patent: 4694241 (1987-09-01), Genuit
patent: 4853664 (1989-08-01), Asakura
patent: 5063487 (1991-11-01), Johnson et al.
B. R. Pelly, "Cycloconverter," Nov. 20, 1976, pp. 130-131, Denki Shoin, Tokyo publisher.

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