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1. We are professional electric induction melting furnace manufacture, 2.,good service and price., 3.IGBT-750KG-450KW-3phase380v - details see: https://www.machineto.com/igbt-750kg-mf-melting-furnace-made-in-china-10159116

Easy to operate ,suitable for all casting process.

The main technical parameters of equipment:

GW0.75/IGBT-450

Serial number	Project	Technical parameters
1	Furnace rated capacity(cast iron)	0.75T
2	Medium frequency power supply	450KW
3	Single furnace maximum power	450KW
4	Rate power	1500Hz
5	Intermediate frequency power supply input end of the power factor of the power grid(process)	≥0.95
6	Working temperature	1600°C
7	Melting rate	50-60min/furnace
8	Power consumption	550-650kWh/t
9	Cabinet type closed cooling tower	12m3/h
10	---each furnace body	16m3/h
11	Power supply transformer	500KVA,3N-380V

The working principle of IGBT medium frequency power supply:

:IGBT frequency power function of every part and principle

1, rectification section: IGBT MF rectifier adopts a controllable silicon controlled switch, only use, i.e. whenever the start device when the rectified voltage to maintain 500V, and not with the power size changes, which can greatly reduce the harmonic generation, reduce the harmonic interference. Rectifier control part is controlled by CPLD, it and IGBT if the motherboard can have four wires are connected, wherein the two as the start of the rectified line, the other two being stopped, protecting the signal line.

2: IGBT, filter MF employing reactor and electrolytic capacitor filter in two ways, reactor can make the continuous current, electrolytic capacitor filter can make the voltage constant, which will ensure that the invert part be a stable voltage source and current source

3, IGBT module inverter section: IGBT if the half-bridge inverter, inverter, IGBT module, it is by the German company production, this module is a positive temperature coefficient modules, i.e. when the temperature rises its on-state impedance will increase, which is beneficial to the uniform flow

4, IGBT module drive: drive part adopts the German production of supporting the drive plate, driving ability, perfect protection function, at the same time driving a plurality of block IGBT module, with over current, over voltage protection functions such as. High performance driving plate is a reliable operation of equipment guarantee.

5, drive power: driving power supply using isolated power module, the driving power of " ground " and the external power supply is isolated. This can avoid the external disturbance, is conducive to the reliable operation of the equipment

6, the main control board has the following functions: pulse synthesis function, frequency tracking, synchronous protection, overcurrent limiting function, temperature and pressure of the water protection function.

:Characteristic:

1, high reliability. In the series circuit and switching inverter must bear through the coil current. Generally speaking, the current is a parallel type power inverter switching circuit current 10 - 20 times. As a result of silicon controlled the nature of existence flaw, make but conduction can't shut off, so in the case of faults, to protect the controllable silicon is very difficult, and IGBT can in the case of a fault has been detected signal in a moment can be turned off, therefore can give power to good protection. IGBT transistor receives a trigger signal period will maintain onstate, trigger signal may at any time to disappear

off the IGBT. Can the IGBT ppm seconds of being shut off, so far than the same type of inverter SCR 100 times faster.

2, energy saving. Due to the adoption of the series circuit and the design of reactive current is small, so the power consumption is greatly reduced.

3, use IGBT to expand capacity is modular, more easy to implement with large capacity.

4, IGBT module series inverter circuit, and has the advantages of simple circuit, easy to complete a single supply dual output, to achieve " one to two ", so that the operator is easy to learn, easy maintenance.

5, start of superior performance, no matter in any state ( including steel furnace furnace with cold ) starting success rate was 100%.

6, little pollution for electric network: complete sets of equipment for the power factor high, without any additional compensation measures, complete sets of electric equipment for the power factor in the whole operating process to maintain in 0.95 above.

7, the system implements the " soft start ", " soft off " whether the startup or shutdown, automatic shutdown or protection, are automatically entered into the " soft start ", " soft off ", therefore, whether in full power, the voltage and the " frozen furnace " and any other condition, can start, stop, and to ensure that the system set by the various necessary protection and reliable work, guarantee the system reliable.

8, easy repair: General operating electrician after training can be completed.

IGBT energy saving power advantage:

1, IGBT energy-saving power supply is a kind of resonant type intermediate frequency induction power supply, the inverter device using a new IGBT module ( insulated gate bipolar transistor, the German production ), it is mainly used for smelting and ordinary carbon steel, alloy steel, cast steel, non-ferrous metals. With the melting speed, energy saving, low harmonic pollution.

2, IGBT power supply is a constant power output of the power supply, inverter frequency time tracking load change, achieve full resonance, plus a little material can achieve full power output, and always remained unchanged, so melting speed; for part of the series resonant inverter, the inverter voltage and higher, than ordinary Thyristor Intermediate frequency to save energy; IGBT if the variable frequency adjusting power, rectification is part of a full bridge rectifier, filter inductor or capacitor, and has been working in 500V, so IGBT medium frequency power supply of high order harmonic generation on power generation small, low pollution.

3, IGBT frequency power than the traditional thyristor intermediate frequency power supply around 20% energy saving, energy-saving main reason has the following several aspects:

1) inverter high voltage, current, line loss is small, this part of energy saving of about 15%, type IGBT transistor heating power supply voltage can be reached 3000V, while the traditional thyristor intermediate frequency power supply inverter voltage is 750V, the current small nearly 4 times, greatly reducing line loss

2) high power factor, the power factor is always greater than 0.95, reactive power loss is small, this part than the silicon controlled energy saving about 3% - 5%. As a result of energy saving type IGBT transistor medium frequency power supply has used half controlled rectifier, rectifying part is not adjustable thyristor conduction angle, so the whole working process of power factor is always greater than 0.95, no small loss of power.

3) charge burning less. Because IGBT intermediate frequency electric furnace than general thyristor intermediate frequency electric furnace working speed of about 15 minutes, 15 minutes of furnace heat loss can be accounted for the entire process of 3% - 5%.

4, no higher harmonic interference:

Harmonic mainly from the rectifier voltage controlled silicon burr generated voltage, serious pollution to power network, leading to other equipment can not work normally, Runxing company energy-saving type IGBT transistor of the intermediate frequency power supply rectifier part adopts half controlled rectifier, a DC voltage is always working at the highest, not adjustable conduction angle, so that it does not produce harmonic, no pollution to power grid, transformer, switch heating, does not interfere with other electronic equipment factory operation.

5, constant power output:

The thyristor medium frequency power supply with voltage regulation power, and run Xing IGBT type medium frequency power supply with frequency regulation power, it is not affected by the charge number and lining thickness effect, in the whole smelting process to maintain a constant power output, especially in the production of stainless steel, copper, aluminum and other non magnetic metal, more demonstrated its superiority, melting speed, charge burning fewer elements, reducing the casting cost.

Note: Equipments can be designed and produced according to the demand of the customer