| Patent Number |
Title Of Patent |
Date Issued |
| 7257146 |
System and method for controlling power across multiple electrodes in a furnace |
August 14, 2007 |
| A method and system for stabilizing energy consumption in multiple loads, or in single multi-phase loads. The method and system also compensates for unbalance in multi-phase loads. A central controller monitors variable reactances in the loads and identifies situations of power and/o |
| 7212561 |
System and method for controlling electrical power across multiple furnaces using variable react |
May 1, 2007 |
| A method and system for stabilizing energy consumption in multiple loads, or in single multi-phase loads. The method and system also compensates for unbalance in multi-phase loads. A central controller monitors variable reactances in the loads and identifies situations of power and/o |
| 6603795 |
Power control system for AC electric arc furnace |
August 5, 2003 |
| 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 |
| 6573691 |
Control system and method for voltage stabilization in electric power system |
June 3, 2003 |
| Variable shunt and series connected reactors are used in a complimentary combination in an electric arc furnace to provide improved flicker control. A power control system for an time-varying AC load, such as an electric arc furnace, connected to an AC power supply line includes a fi |
| 5867523 |
Electric furnace with conductive hearth |
February 2, 1999 |
| An improved return path for electric current through a conductive hearth of a direct current arc furnace is provided by pressing a ring of water cooled copper blocks into the periphery of a sidewall of the hearth of the furnace, the hearth having zones of conductive refractory providing |
