从理论上简要分析了安钢新建１００ｔ交流电炉的电气运行工作点的选择。分析表明输入到炼钢炉内的电弧功率与电炉变压器的表观功率和额定客量之间并不具有简单的直接关系，正确选择系统阻抗参数和工作点对电弧炉的运行状态有非常重要的意义． A brief analysis of the theoretical analysis of the new steel 100t AC electric furnace operating point of choice. The analysis shows that there is no direct and direct relationship between the arc power input into the steel-making furnace and the apparent power and rated capacity of the EAF. It is very important that the correct choice of the system impedance parameters and operating point is made for the operating status of EAF significance.