Inductor devices – Polyphase – Interconnected windings
Patent
1979-11-16
1981-06-16
Kozma, Thomas J.
Inductor devices
Polyphase
Interconnected windings
336160, 336212, 336215, H01F 3300, H01F 2724
Patent
active
042740711
ABSTRACT:
A three-phase transformer structure has a double-window magnetic structure with an independent flux path encircling each window and an outer flux path encircling both windows. A shunt path for the outer flux path bridges both windows and two additional shunt paths bridge each window independently. Hence, each flux path has an independent and isolated shunt permitting operation of the three-phase transformer in a ferroresonant mode.
REFERENCES:
patent: 2968778 (1961-01-01), Steinmayer
patent: 3087108 (1963-04-01), Toffolo et al.
patent: 3319205 (1967-05-01), Walz et al.
Bell Telephone Laboratories Incorporated
Kozma Thomas J.
Steinmetz Alfred G.
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