What size transformer does a 750kw induction melting furnace need to be equipped with?

For an induction melting furnace with a rated power of 750 KW, a transformer with a rated power (nominal value of 800 KVA) can be selected.

The power factor of the electric heating equipment is 1, plus other auxiliary control equipment, it is reasonable to choose an 800 KVA transformer.

The correct choice of transformer capacity is one of the important measures for power grid loss reduction and energy saving. In practical applications, we can choose the transformer capacity according to the following simple methods.

We should adhere to the principle of “small capacity, densely distributed”, and the distribution transformer should be located in the load center as far as possible, and the power supply radius should not exceed 0.5 kilometers. The load factor of the distribution transformer has the highest efficiency between 0.5 and 0.6, and the capacity of the transformer at this time is called the economic capacity. However, if the load is relatively stable, the transformer capacity can be selected according to the economic capacity in the case of continuous production.