Power supply circuit for a direct current arc furnace

Details Power supply circuit for a direct current arc furnace Power supply circuit for a direct current arc furnace

1982-07-29

1984-07-17

Envall, Jr., Roy N.

Industrial electric heating furnaces

Arc furnace device

Power supply system

H05B 7144

Patent

active

044610106

ABSTRACT:
A power supply circuit for providing a continuous DC arc between two electrodes of an electric arc furnace comprises a three-phase AC power source, transformer means having primary and secondary windings and three linear reactors. One of the outputs of a three-phase full-wave rectifier is connected to one of the furnace electrodes. The other output of the rectifier is connected through a DC inductance to the second furnace electrode. The linear reactors and the transformer means are connected in series between the AC power source and the rectifier.

REFERENCES:
patent: 2927143 (1960-03-01), Jensen
patent: 3104352 (1963-09-01), Tiemann
patent: 3436641 (1969-04-01), Biringer
patent: 3470444 (1969-09-01), Bixby
patent: 3789127 (1974-01-01), Bowman
patent: 3812620 (1974-05-01), Titus et al.
patent: 4099227 (1978-07-01), Liptak
patent: 4110821 (1978-08-01), Hisano

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