Main features：
1. When the electric furnace is working, the power can be freely distributed according to the melting speed
2. Power factor COS¢≥0.95
3. Electricity consumption saving, fast speed, uninterrupted melting can be held at the exact temperature or heating up.
4. Each ton of castings requires less investment, the maximum effective use of equipment.
5. Good material and performance consistency of the castings.
6. High reliability. Since the series circuit is a self-closing element, it is not easy to have inverter commutation failure, and the protection action is instantaneous.
7. High power factor of the complete set of equipment to the grid, without any additional compensation measures, the power factor of the complete set of electric furnace equipment to the grid in the whole process of operation are maintained at 0.95 or more.
8. Frequency conversion medium frequency electric furnace adopts the completed series inverter circuit, the line is simple, easy to complete a single power double output, can realize "one tow two, one tow three, one tow many", so that the operator is easy to grasp, simple maintenance.