One tow two IF furnace is one tow two IF furnace is one tow two if induction furnace is one tow two if induction furnace.

A set of intermediate frequency power supply distributes power to two furnaces at the same time: one melting, one protecting and two melting. One medium frequency power supply with two furnaces working at the same time, power distribution at will, one smelting with one insulation, continuous smelting, when necessary, can be insulated, heated, tempered, etc. under the accurate temperature, to maximize production.

Technical features: the technology of "series inverter type thyristor intermediate frequency power supply" is adopted for one drive two intermediate frequency furnaces. Although the thyristor full control rectifier furnace is adopted, it is not used for voltage regulation, but only used for soft start and electronic switch in case of fault, which can cut off the intermediate frequency power supply quickly. In normal operation, the thyristor is always in full conduction state, so that the power supply of the power grid has high power factor And reduce harmonic interference. The rectifier control circuit adopts digital shift trigger circuit. Digital shift trigger circuit has the advantages of good repeatability, good stability, good symmetry, strong anti-interference ability, convenient debugging and so on. If the digital quantity is given, the remote control can be realized. The advantage is high efficiency, the series inverter uses half bridge circuit, the number of main circuit components is relatively reduced, and has a high power factor, so it has high power. Good start-up characteristics, in full load, heavy load state, can start at will, start success rate of 100%. Improve the power factor to ensure 95% power factor at any power. Constant power output, the power output adopts constant control, in the smelting process, when the load and temperature change, its load is always full power output, so as to shorten the smelting time. It has a complete monitoring system for protection and operation conditions. For example: use sensor to take signal for incoming current, voltage, channel current and voltage, carry out current limiting, voltage limiting, over-voltage repetitive protection for double closed-loop digital circuit, have water temperature and water pressure protection, etc. Both KK thyristor and KP thyristor have self closing time protection. There is a complete detection system to monitor the working temperature of the inverter and filter capacitor with a temperature switch meter. Once the cooling water temperature exceeds the set value or there is a water fault, an alarm will be sent out and the intermediate frequency power supply will be cut off. The cooling water input of medium frequency power supply is controlled by hydraulic relay, and the cooling water output is monitored by temperature switch, which will give an alarm if the temperature is over

One tow two IF furnace and one tow two if induction furnace are different from one tow two if induction furnace.