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目前耐火行业中使用的连熔连吹电阻炉,采用电力抽头变压器或磁性调压器(以下简称磁调)来控制炉内的电压和电流。采用电力抽头变压器是通过改变抽头的电压等级和配合调节电极(相电压)与流口(零电位)之间的距离来控制炉内的发热区域,要想做到较大幅度的调整,则要通过停电、换档、再通电来完成,这一调节方式使其调节过程不连续且变化陡度大;采用磁调则只需通过给磁调的激磁绕组
Currently used in the refractory industry with continuous melting blow resistance furnace, the use of power tap transformer or magnetic regulator (hereinafter referred to as magnetic) to control the furnace voltage and current. Adopting the power tap transformer is to control the heating area in the furnace by changing the voltage level of the tap and adjusting the distance between the electrode (phase voltage) and the flow port (zero potential). In order to achieve more substantial adjustment, Through the power outage, shift, and then power to complete, this adjustment method to make the adjustment process is not continuous and the gradient changes steep; using magnetic tune only by the magnetic excitation winding