| 摘要 |
<p>This invention concerns a procedure for controlling the type of arc in an electrical furnace (F), which comprises the monitoring (R) of the short circuit power of the network line (L) during a period of inactivity of the arc, whereby the value thus monitored is processed (B) to determine a primary voltage (V) to be maintained at a transformer (T2) supplying the electrodes of the furnace (F), and whereby the processing (E) combines fixed parameters (P) and at least variable parameters relating to: pre-set conditions of the arc (S), conditions of a substation tap changer (VAR), and line parameters (C) including at least the state of connection of banks of capacitors (C1-C2). The invention also concerns an arc furnace (F) which employs a procedure for controlling the type of arc according to the methods described herein.</p> |
