·60· 北京科技大学学报 2007年增刊1 pean Electric Steel Congress.Madrid(Spain),1992:3 [6]阁立懿，刘一心，肖玉光，等.高阻抗电弧炉的设计.特殊钢， [5】徐世铮.电炉炼钢学.沈阳：东北工学院出版社，1990 2002,23(6):40 Determination of reasonable power input specification for modern electric arc furnace YAN Liyi,LIU Xihai,XIAO Yuguang Northeastern University,Shenyang 110004,China ABSTRACT Based on the analysis of electrical characteristics of the electric arc furnace.theoretical electrical characteristic curves of electric arc furnace were drawn.With the concept of "economy electric current",the rea- sonable power input specification under the consideration of many relative factors was given.According to the productive process of Chinese steelmaking manufacture of electric arc furnace,the principle of secondary voltage determination and the means of device loop impedance worth ascertain was introduced.Combing the high im- pedance electric arc furnace technology,the power input specification of high voltage and long arc was put for- ward,and reasonable guarantee of power input specification wasproposed. KEY WORDS EAF;steelmaking;high-impedance;electrical characteristic;power input specification;economy electric current• 60 • 北 京 科 技 大 学 学 报 2007 年 增刊 1 pean Electric Steel Congress. Madrid (Spain), 1992：3 [5] 徐世铮．电炉炼钢学．沈阳:东北工学院出版社，1990 [6] 阎立懿，刘一心，肖玉光，等．高阻抗电弧炉的设计．特殊钢， 2002，23（6）：40 Determination of reasonable power input specification for modern electric arc furnace YAN Liyi, LIU Xihai, XIAO Yuguang Northeastern University，Shenyang 110004, China ABSTRACT Based on the analysis of electrical characteristics of the electric arc furnace, theoretical electrical characteristic curves of electric arc furnace were drawn. With the concept of "economy electric current", the rea￾sonable power input specification under the consideration of many relative factors was given. According to the productive process of Chinese steelmaking manufacture of electric arc furnace, the principle of secondary voltage determination and the means of device loop impedance worth ascertain was introduced. Combing the high im￾pedance electric arc furnace technology, the power input specification of high voltage and long arc was put for￾ward, and reasonable guarantee of power input specification wasproposed. KEY WORDS EAF; steelmaking; high-impedance; electrical characteristic; power input specification; economy electric current