Multi-voltage transformer input circuits with primary reactor vo

Details Multi-voltage transformer input circuits with primary reactor vo Multi-voltage transformer input circuits with primary reactor vo

1982-02-16

1984-04-03

Wong, Peter S.

Electric power conversion systems

Current conversion

With condition responsive means to control the output...

323249, 323345, 323346, 363 92, H02P 1324

Patent

active

044411499

ABSTRACT:
A multi-voltage transformer input circuit, which may have multi-phase input, and where the input or each phase of the input has a primary reactor voltage control, is provided by the present invention. The primary winding of the transformer, or each phase of the primary winding has at least two sections which are bifilar wound on a single core, each section having its own polarity. Each primary winding section is connected with one of a pair of like synchronous operating current control devices, which may be saturable core reactors, magnetic amplifier, or phase-angle fired silicon controlled rectifiers. Each synchronous operating device is in series with its respective primary winding section, the first in opposite polarity to the first primary winding section, the second with the same polarity as the second primary winding section. External connection taps are provided, so that the primary winding sections and their respective synchronous operating devices may be connected in series or parallel, so as to provide multiple input voltage ratings for transformers and synchronous operating devices having common operating characteristics.

REFERENCES:
patent: 2157977 (1939-05-01), Alriq
patent: 2992379 (1961-07-01), Rosin
patent: 3310728 (1967-03-01), Jackson
patent: 3601680 (1971-08-01), Beckwith
patent: 3855521 (1974-12-01), Kiuchi
patent: 3914685 (1975-10-01), Van Gilder
patent: 4142141 (1979-02-01), Hase
patent: 4320333 (1982-03-01), Hase
patent: 4343034 (1982-08-01), Wells et al.

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