Electricity: power supply or regulation systems – External or operator controlled – Using a transformer or inductor as the final control device
Patent
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
Kugler Kurt
Lessmann-Mieske Hans-Henning
Wein Franz
Dubno Herbert
Jones Judson H.
Maschinenfabrik Reinhausen Gebruder Scheubeck GmbH & Co. KG
Ross Karl F.
Wong Peter S.
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