H - Electricity – 02 – J
Patent
H - Electricity
02
J
H02J 3/01 (2006.01) F27D 11/08 (2006.01) F27D 19/00 (2006.01) H02J 3/18 (2006.01) H02J 3/24 (2006.01) H05B 7/00 (2006.01) H05B 7/148 (2006.01) F27B 3/08 (2006.01)
Patent
CA 2260516
An electric arc furnace comprises a power source for applying a voltage to an electrode, the electrode being spaced apart from a grounded container for receiving scrap metal, such that the application of the voltage to the electrode causes generation of an arc between the electrode and the container for melting the scrap metal. The electric arc furnace includes a predictive line controller comprising a plurality of switches intermediate the power source and the electrode, and a central controller for monitoring the voltage and generating a signal model thereof. The central controller generates and applies gating signals to the plurality of switches, the gating signals being delayed by respective predetermined amounts based on the model, for causing the switches to gate the voltage so as to minimize flicker in the electric arc furnace.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Hatch Ltd.
Inverpower Controls Ltd.
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