Title:
POWER CONTROL SYSTEM FOR AC ELECTRIC ARC FURNACE
Document Type and Number:
WIPO Patent Application WO2002063927
Kind Code:
A3
Abstract:
A power control system for an AC electric arc furnace. The control system includes variable reactors located intermediate a furnace power supply and arc electrodes that are height adjustable. The control system monitors operating characteristics of the furnace that are indicative of the active power consumption of the furnace and adjusts the variable reactors and the electrode height so as to minimize variations in the active power consumption. Loss of electrode arc can be predicted and countered by lowering the electrodes and decreasing the reactance of the variable reactors.
Inventors:
MA THOMAS
SEDIGHY MOHAMMED
PERKINS BRIAN
GERRITSEN THEODORUS
RAJDA JANOS
SEDIGHY MOHAMMED
PERKINS BRIAN
GERRITSEN THEODORUS
RAJDA JANOS
Application Number:
PCT/CA2002/000142
Publication Date:
April 03, 2003
Filing Date:
February 07, 2002
Export Citation:
Assignee:
HATCH ASS LTD (CA)
SATCON POWER SYSTEMS CANADA LT (CA)
SATCON POWER SYSTEMS CANADA LT (CA)
International Classes:
F27B3/20; H05B7/148; H05B7/152; (IPC1-7): H05B7/148
Foreign References:
| US2632862A | 1953-03-24 | |||
| EP0429774A1 | 1991-06-05 | |||
| US4607374A | 1986-08-19 | |||
| US3767832A | 1973-10-23 | |||
| US2450159A | 1948-09-28 |
Other References:
See also references of EP 1360876A2
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