METHOD FOR OPERATING ARC FURNACE, CONTROL AND/OR REGULATING DEVICE FOR ARC FURNACE, AND ARC FURNACE

摘要

The invention relates to an arc furnace, a control and/or regulating device for an arc furnace, and a method for operating an arc furnace, wherein an arc for melting metal is generated with at least one electrode, wherein an arc which is associated with the at least one electrode has a first radiation output based on a first set of operating parameters which is set, wherein the arc furnace is operated in accordance with a predefined operating program which is based on an expected process sequence, wherein monitoring is performed to check whether there is an undesired deviation between the actual process sequence and the expected process sequence. Since a changed second radiation output is predefined when there is a deviation, and a changed second set of operating parameters, in particular at least one impedance value, is ascertained on the basis of the changed second radiation output, a method can be provided which allows the shortest possible melting period to be achieved while protecting the operating means, in particular the arc furnace cooling system.