Power control system for AC electric arc furnace
US6519274B2 · kind B2 · utility
0Cited by
9References
29Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | Feb 11, 2003 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC —)General
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.