在一定设备条件下,供电制度合理与否,不但影响冶炼过程的顺利,还影响炉衬寿命、冶炼周期、电能消耗以及设备利用等。在分析炼钢电炉电气特性的基础上,绘出电炉理论电气特性曲线,介绍二次电压确定原则,并以“经济电流”概念,考虑到诸多相关因素,给出确定合理的供电制度方法。 In certain equipment conditions, the power supply system is reasonable or not, not only affect the smooth smelting process, but also affect the lining life, smelting cycle, power consumption and equipment utilization. On the basis of analyzing the electrical characteristics of EAF, drawing out the electric characteristic curve of EAF, introducing the principle of determining secondary voltage, taking the concept of “economic current” into consideration, taking into account many relevant factors, gives the method of determining reasonable power supply system.