近年来炼钢工业为了提高生产率正加速发展超高功率电弧炉,该炉的特点是电流很大,产生特殊的感应发热问题。同时希望短网的电抗低,使线路压降小,因而三相导电体间的距离要尽可能小,这样,在邻近的支座钢结构件中的感应发热问题更为严重。 超高功率电弧炉短网的三相阻抗应接近平衡,因此,现在几乎全部超高功率电炉的三相导电体均采用等边三角形布置,这种布置在炉子运动时,当中相横臂与两边相的导电体处于同一水平,它们间的距离最近,感应发热最严重。在有关文献中,对上述问题有大量的报导,择其针对性较强的摘录几例,供我国电炉设计 In recent years, the steelmaking industry is accelerating the development of ultra-high-power electric arc furnaces in order to increase productivity. The furnace is characterized by a large current and generates a special induction heating problem. At the same time, it is hoped that the short-circuit reactance will be low and the voltage drop of the line will be small. Therefore, the distance between the three-phase conductors should be as small as possible so that the problem of induced heat generation in the adjacent support steel structures is more serious. Therefore, almost all of the three-phase conductors of ultrahigh-power electric furnaces are now arranged in an equilateral triangle. This arrangement is used when the furnace is moving, in which the phase cross arm and both sides Phase conductors at the same level, the distance between them, the most sensitive to heat. In the literature, a large number of reports on the above issues, select its more targeted extract of several cases for our electric furnace design