晶闸管中频装置主要用在感应加热及感应熔炼中,代替中频发电机组。由于它具有如下优点,故得到广泛的应用:(1)电力消耗低,比同类型发电机组效率高10%左右;(2)频率随负载参数变化而自动变化,始终保持在最佳运行状态;(3)无转动零部件,噪声小;(4)外形小、重量轻、结构紧凑,发生故障易更换,且起动、停止速度很快;(5)装置起动时,无发电机组的冲击,从而减小了交流电源容量。但是,其过载能 Thyristor IF device is mainly used in induction heating and induction melting, instead of medium-frequency generator. Because it has the following advantages, it has been widely used: (1) low power consumption, than the same type of generator set efficiency of about 10%; (2) the frequency changes automatically with changes in load parameters, always maintain the best operating conditions; (3) no rotating parts, small noise; (4) small size, light weight, compact structure, easy to replace the fault occurs, and start, stop fast; (5) the device starts, no generator impact Reduce the AC power capacity. However, its overload can