Which is more energy-efficient, IGBT intermediate frequency ...

IGBT is a new type of switching device. It has a fast switching speed, and the control signal is turned on. The control signal is cut off, which facilitates control, reduces the on-voltage and reduces power consumption. The maximum current of the IGBT only needs to be twice the rated current, and the impact resistance is poor. Thyristor is a traditional switching device with large control power and strong impact resistance. Are IGBT electric furnaces more power efficient than SCR electric furnaces? We can see whether it is power saving through the following calculations. For example, a 1 ton electric furnace has a power of 500KW, a phase voltage of 380V, an IGBT electric furnace with a power factor of 0.98, a DC current of 928A, and the power consumed by the four IGBTs is [1V (IGBT turn-on voltage drop) X 928A / 2] X 4 = W = 1.856KW; the power factor of the SCR electric furnace is 0.93, the DC current is 977A, and the power consumed by the thyristor is: [1.2V (thyristor conduction voltage drop) X977A / 2] X 4 = W = 2.344KW, it can be seen that the power consumed by the IGBT is 21% less than the power consumed by the thyristor. Therefore, it saves power, but the maintenance cost is high, the technology is not matured with thyristor, and the failure rate will be high if the furnace has a large tonnage, depending on the situation of your company, but the product price and maintenance cost are high, the performance is not as mature as thyristor, power It's not suitable for bigger. Generally do not buy IGBT, only universities and colleges, laboratories, etc. will consume, private bosses do not need to consume.

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It is concluded that the IGBT electric furnace saves 21% of the electricity than the thyristor electric furnace, which is wrong. We continue to calculate that the power consumed by the IGBT is a percentage of the total power of 1.856KW / 500KW = 0. = 0.%; The percentage of power is 2.344KW / 500KW = 0. = 0.%. With the above accounting data, it can be seen that under the same conditions, the IGBT electric furnace saves 0.% of the electricity than the SCR electric furnace, which can be neglected. If other conditions are changed, the IGBT electric furnace uses a series inverter and saves power by advancing the intermediate frequency voltage. That is another matter. The SCR electric furnace can advance the intermediate frequency voltage by 2 times the voltage. Because the SCR's withstand voltage and current are much higher than the IGBT device, the SCR electric furnace can choose high phase voltage and high intermediate frequency voltage. The plan is reasonable and it can save more power than the expensive IGBT electric furnace.

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Are you interested in learning more about IGBT Tilting Melting Furnace? Contact us today to secure an expert consultation!

The 15 kw ~ 300 kw IGBT small capacity medium frequency induction melting furnaces are mainly used for melting scrap copper, brass, bronze, aluminum, gold, silver, zinc, iron, steel, stainless steel, aluminum, gold ore, copper ore, glass, other nonferrous metals, ferrous metals and metal alloys.The melting furnace capacity is normally from 3 kg to 500 kg.
 
Advantages:
1. Easy for installation and operation.  No need to make foundation or civil work.
2. Super small size and portable. Save big space for user.
3. 100% duty cycle. 24 hours no-stop continuous working ability.
4. Energy saving. Save at least 20% energy comparing with KGPS thyristor type induction system.
5. Convenient to change furnace crucible for different material melting.
6. Use ready-made crucible: no need to make lining with refractory material by skilled person, convenient for users.
7. With screen for displaying working frequency, current, voltage and power.
8.  Include protections for over-voltage input, over-voltage output, over current, water supply fail, phase fail, over-temperature, short-circuit and unfit frequency.
9. Wide voltage input: 360 V, 380 V, 400 V, 415 V, 440 V, 460 V. (50 Hz or 60 Hz).

 
Technical Data: Input Power 15-160Kw Output Current 3-22A Input Power Supply Three phase, 380(V)±20%,50/60HZ Oscillation Frequency 1KHZ-20KHZ or customized Power Supply IGBT Working Time 24 hours non-stop Input Frequency 50/60HZ Melting Material Steel, Aluminum, Copper, Gold, Iron,etc
 
Furnace Compostion:
1. 1 KHz ~ 20 KHz IGBT medium frequency induction power supply cabinet --1PC
2.Compensation capacitor cabinet --------------------------------------------------- 2PC
3. 1 kg to 250 kg capacity induction melting furnace body with crucible ------1PC
4. Water cooled cables (connect furnace body with capacitor cabinet) ------ 2PCS
5. Copper cables (connect capacitor cabinet with power supply cabinet) --- 2PCS
6. Signal wire ---------------------------------------------------------------------------- 1PC
7. Foot switch --------------------------------------------------------------------------- 1PC
Detail Pictures:

1, Furnace Body:

(1) Manual gear box tilting type


(2) Electric gear box tilting type


(3) Hydraulic tilting type


2.Medium frequency power supply(IGBT):




 

Portable IGBT medium frequency metal melting induction furnaceThe 15 kw ~ 300 kw IGBT small capacity medium frequency induction melting furnaces are mainly used for melting scrap copper, brass, bronze, aluminum, gold, silver, zinc, iron, steel, stainless steel, aluminum, gold ore, copper ore, glass, other nonferrous metals, ferrous metals and metal alloys.The melting furnace capacity is normally from 3 kg to 500 kg.Advantages:1. Easy for installation and operation. No need to make foundation or civil work.2. Super small size and portable. Save big space for user.3. 100% duty cycle. 24 hours no-stop continuous working ability.4. Energy saving. Save at least 20% energy comparing with KGPS thyristor type induction system.5. Convenient to change furnace crucible for different material melting.6. Use ready-made crucible: no need to make lining with refractory material by skilled person, convenient for users.7. With screen for displaying working frequency, current, voltage and power.8. Include protections for over-voltage input, over-voltage output, over current, water supply fail, phase fail, over-temperature, short-circuit and unfit frequency.9. Wide voltage input: 360 V, 380 V, 400 V, 415 V, 440 V, 460 V. (50 Hz or 60 Hz).Technical Data:Furnace Compostion:1. 1 KHz ~ 20 KHz IGBT medium frequency induction power supply cabinet --1PC2.Compensation capacitor cabinet --------------------------------------------------- 2PC3. 1 kg to 250 kg capacity induction melting furnace body with crucible ------1PC4. Water cooled cables (connect furnace body with capacitor cabinet) ------ 2PCS5. Copper cables (connect capacitor cabinet with power supply cabinet) --- 2PCS6. Signal wire ---------------------------------------------------------------------------- 1PC7. Foot switch --------------------------------------------------------------------------- 1PCDetail Pictures:1, Furnace Body:(1) Manual gear box tilting type(2) Electric gear box tilting type(3) Hydraulic tilting type2.Medium frequency power supply(IGBT):

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