Load-switching circuit for antiparallel thyristor networks and a

Details Load-switching circuit for antiparallel thyristor networks and a Load-switching circuit for antiparallel thyristor networks and a

1983-06-27

1985-10-29

Wong, Peter S.

Electricity: power supply or regulation systems

External or operator controlled

Using a transformer or inductor as the final control device

307137, H01F 2904

Patent

active

045502854

ABSTRACT:
A load-switching circuit for a tapped transformer utilizes identical netws of antiparallel thyristors bridged by commutating networks having a condenser in series with a damping impedance. According to the invention, the blocking of one pair of thyristors causes the energization of a relay to operate a switch contact shunting the damping impedance of the blocking pair so that its condenser functions as a voltage spike surge suppressor.

REFERENCES:
patent: 3466530 (1969-09-01), Matzl
patent: 4432032 (1984-02-01), Baker et al.
patent: 4475139 (1984-10-01), Chadwick

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