Autotransformer with series and tertiary windings having same po

Details Autotransformer with series and tertiary windings having same po Autotransformer with series and tertiary windings having same po

1976-04-01

1977-04-26

Kozma, Thomas J.

Inductor devices

Polyphase

336180, 336183, 361 50, H01F 3300, H01F 2728

Patent

active

040204383

ABSTRACT:
An autotransformer having the same polarity impedance, series and tertiary windings as defined by an equivalent three-terminal network of said autotransformer. Autotransformers are often protected against phase-to-ground faults by ground fault relays and such devices require this type of impedance relationship for proper operation; especially during phase-to-ground fault conditions.

REFERENCES:
patent: 1731906 (1929-10-01), Petersen

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