Power control system for AC electric arc furnace
US6603795B2 · kind B2 · utility
22Cited by
17References
29Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Aug 5, 2003 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P10/25
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.