What are the advantages of a one-to-two medium frequency electric furnace?
- Arbitrary adjustment and distribution of one-to-two medium frequency electric furnace power
Just by rotating the power potentiometer button on the panel of the inverter power supply, the output power can be adjusted and distributed arbitrarily. Two furnaces can be smelted at the same time, or one furnace can be smelted and the other can be insulated. It can also be smelted in one medium frequency furnace, and the other is stopped for standby. It is very flexible to use for single smelting. The operation is very convenient, and it can keep warm, heat, temper, and so on at an accurate temperature, and maximize the water output to meet the casting of different workpiece weights.
- High power factor operation characteristics of one-to-two medium frequency electric furnace, the power factor is higher than 0.95.
The series one-to-two medium frequency electric furnace inverter adopts a half-bridge circuit, the number of main circuit components is relatively reduced, and there is a high power factor. The resonance circuit of the medium frequency power supply is series resonance, which is the “series inverter type thyristor medium frequency power Technology, high power factor, to ensure high efficiency at any power. Constant power output, power output adopts constant control, during the melting process, when the load and temperature change, the load is always full power output, effectively shortening the melting time.
- One-to-two medium frequency electric furnace is a green, high-efficiency, and energy-saving one-to-two medium frequency furnace that does not contain the 5th and 7th harmonic components.
The medium frequency power supply of the one-to-two medium-frequency electric furnace adopts a 12-pulse thyristor full-controlled rectifier circuit. The voltage and power regulation are different from other medium-frequency power supplies of the one-to-two medium frequency furnace. It is its advantage to protect the inverter and cut off the power quickly. The pulse SCR medium frequency power supply does not contain the 5th and 7th harmonic components. According to the harmonic analysis, the harmonic influence of the 12-pulse rectifier power supply is much smaller than that of the ordinary KGPS medium frequency power supply.
- The medium frequency power supply control system of one for two medium frequency electric furnaces is fully integrated and digitized
The one-to-two medium frequency electric furnace control system is fully digital, without relay control, dynamic voltage equalization, with phase loss, overvoltage, overcurrent, low water pressure and human error protection, current limit, voltage limit, balance, stable function, sweep Frequency start performance is good. The structure is simple, energy-saving, and electricity-saving, the control board is easy to debug, and there are only 5 potentiometers for adjustment. Simple operation and maintenance.
- The success rate of starting the medium frequency furnace with one for two in series reaches 100%.
The advantages of one-to-two medium frequency electric furnace series resonance have good starting characteristics and power factors. It can be started at will under full load and heavy load, and the starting success rate reaches 100%.
- In any case, the medium frequency power transformer of the one-to-two medium-frequency electric furnace reaches full-load operation
One-to-two medium frequency furnace body shares a medium frequency power transformer and dual rectifier circuit, that is, a rectifier cabinet. In any case, the medium frequency power transformer reaches full load operation, thereby reducing the capacity of the transformer and changing the conventional two furnaces with two transformers and Two storage cabinets.
- One-to-two medium frequency electric furnace is equipped with a complete monitoring and protection system
Huaxin Electric Furnace is one of the professional induction furnace manufacturers in China. , The produced one-to-two medium frequency electric furnace control panel has a phase sequence self-recognition function. The working temperature of the series inverter and filter capacitor is monitored by a temperature switch meter. Once the cooling water temperature exceeds the set value or a water circuit failure occurs, an alarm will be issued, and the Cut off the 12-pulse double rectifier circuit. The cooling water input of the medium frequency power supply is controlled by a water pressure relay, and the cooling water output has a temperature switch meter to monitor the under-voltage. If the temperature is exceeded, an alarm will be issued and the 12-pulse double rectifier circuit will be cut off. The control cabinet is equipped with an output voltmeter, output power meter, working frequency meter, input ammeter, input voltmeter, DC voltmeter, DC ammeter, a 12-pulse control panel is equipped with a lack of phase display and inverter working display. Two medium frequency furnaces can respectively display medium frequency voltage, power, and working frequency. A circuit breaker is installed in the 12-pulse double rectification control cabinet, which is the visible disconnection point for the medium frequency power supply line isolation switch and the knife switch. It has short-circuit protection, grounding trip protection, and phase loss protection, fuses, etc. The original design of the electrical appliance is reasonable, the discharge is neat, and the maintenance and replacement of parts are convenient and quick. The major heating elements and copper bars are all equipped with reasonable water cooling as required.
- One-to-two medium frequency electric furnace 12-pulse medium frequency power control part optically isolated pulse output
In the control system, there is a double isolation measure between the trigger pulse from the control board to the control pole of the thyristor. On the control board, an optical isolation device with a withstand voltage of more than 2500V is used to photoelectrically isolate the trigger pulse, and a transformer component with a withstand voltage of more than 3000V is used on the pulse transformer. Even if the thyristor overvoltage breaks down, it will not have any impact on the control system. A convenient power conversion function
- One-to-two medium frequency electric furnace has the significant energy-saving effect
High power factor operation characteristics, the power factor is higher than 0.95. efficient. Constant power output. The power output adopts constant control. During the smelting process, when the load and temperature change, the load is always full power output, effectively shortening the smelting time.
The average power factor of the inverter electric furnace using parallel inverter technology is 0.85, and the power factor of 0.95 using series inverter technology can save energy by 10%.