The paper discusses the explosion and burning out of heavy current rectifier and its protection. And it introduces the arc protection system and its application in heavy current rectifier as well.
MW DC arc furnace uses the current 2-transformer rectifier bridge thyristor controlled by adjusting the angle trigger to compose 24 pulse wave rectifier circuit.
MW直流电弧的电流控制采用2台整流变压器控制，通过调节晶闸管桥触发角构成24脉波整流电路。
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How to obtain the way of power source of the strong arc force is shown And the arc digging action of SCR rectifier is the same as that of DC arc wilding generator.