| 摘要 |
<p>Method to control the power supply for electric arc furnaces, whether they be fed with AC or DC, the furnaces including a melting cycle which includes the loading of the scrap carried out at time T0, an initial step of pre-melting the scrap with low and average power with a duration of (T1 - T0), a step of melting at maximum power with a duration of (T2 - T1) and a refining step with a duration of (T3 - T2), the method including the dynamic identification of the approximate moment when situations of risk inside the furnace cease, with a consequent permission to start delivery of maximum power, the dynamic identification being governed by the control and analysis of the electrical quantities, tension and current, fed to the furnace. <IMAGE></p> |
