At present, due to the power supply policy in China, the S7 and S9 power transformers are generally used for industrial power consumption, and the secondary output voltage is 380V. However, the secondary output voltage of industrial electric furnace in foreign countries is 650 ~ 780v. It can be seen that if the special transformer for induction furnace is used to make the secondary output voltage become 650V, when the output power is fixed, the output current will be reduced to 0.585 times of the original, The copper loss is reduced to about 1 / 3 of the original, and the further reduction of the copper loss reduces the heat production of the transformer, so that the resistance of the copper coil will not rise due to too high temperature, the heat taken away by the cooling system will be reduced, and the energy saving effect will be significantly increased. In addition, the power supply voltage can be adjusted timely to adjust the input power of the furnace during the operation of the furnace, so as to minimize the loss of the induction furnace. Therefore, it is imperative to use the special transformer for induction melting furnace to increase the voltage.

In addition, limiting the no-load operation of transformer also plays a certain role in energy saving. In practical application, when the no-load time exceeds a few hours or the production stops, the power should be cut off and the operation of the transformer should be stopped in time, which is more conducive to the energy saving and consumption reduction of the transformer and the improvement of power factor.

Yiphee Electric Furnace Co.,Ltd specializes in producing induction smelting furnace.Tel(WhatsApp):+86-13450756789, yiphee@yiphee.cn