Thyristor tap changer for electrical inductive apparatus

Details Thyristor tap changer for electrical inductive apparatus Thyristor tap changer for electrical inductive apparatus

1978-09-08

1980-09-02

Shoop, William M.

Electricity: power supply or regulation systems

Remote sensing

G05F 500

Patent

active

042209110

ABSTRACT:
Tap changing apparatus including a plurality of electrical inductive windings, each having an intermediate tap which divides each winding into two sections with the voltage of one section being twice that of the other section. Gate-controlled electronic switches, disposed between the ends and the intermediate tap of each winding and each of two output terminals, are selectively triggered to form a conductive path which will cause either or both sectons of each tapped winding to be connected into a circuit so that it will aid, oppose or bypass the circuit. The switching sequences provide a full range of positive to negative output voltage magnitudes for each winding in incremental unit steps.

REFERENCES:
patent: 3195038 (1965-07-01), Fry
patent: 3619765 (1971-11-01), Wood
patent: 3700925 (1972-10-01), Wood
patent: 3909697 (1975-09-01), Depenbrock

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