Series resonance of electromagnetic induction heater power supply

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The power supply of electromagnetic induction heater adopts series resonance, that is, voltage type resonance frequency tracking. Therefore, the efficiency is high and the power factor is high. Therefore, it has obvious power saving effect, and the power consumption for heating each ton of bar is 341 degrees. The front stage of the power supply of the electromagnetic induction heater is uncontrollable full bridge rectification, which will not cause waveform deformation in the rectification section, there is no clipping phenomenon of the turn-off angle, and large capacitance is used for filtering, so the harmonic number is small and the interference to the power grid is small.

Equipment introduction

The power supply of electromagnetic induction heater adopts series resonance, that is, voltage type resonance frequency tracking. Therefore, the efficiency is high and the power factor is high. Therefore, it has obvious power saving effect, and the power consumption for heating each ton of bar is 341 degrees.

The front stage of the power supply of the electromagnetic induction heater is uncontrollable full bridge rectification, which will not cause waveform deformation in the rectification section, there is no clipping phenomenon of the turn-off angle, and large capacitance is used for filtering, so the harmonic number is small and the interference to the power grid is small.

Equipment advantages

With the rapid development of China's industrialization, the field of induction heating is also developing rapidly Due to environmental protection requirements and rising coal prices, heating with coking coal not only does not meet environmental protection requirements, but also is very uneconomical in price and economy On the other hand, KGBS medium frequency heating equipment based on thyristor is widely used in industrial heating Low power factor consumes a lot of electric energy With the extension of the financial crisis, energy conservation and cost reduction have become a very urgent problem for small and medium-sized enterprises Therefore, we have successfully developed JZ (IGBT) series energy-saving medium frequency by using nearly 20 years of induction heating experience.

main features 

1. Constant power output ensures 100% utilization of power transformer capacity.

2. The power factor is always greater than 0.96, without high-order harmonic interference and pollution to the power grid.

3. Digital phase-locked technology is adopted, with high frequency stability.

4. Multiple protection functions.

5. Advanced multi frequency preset technology is adopted, with 100% successful startup rate.

6. Fully enclosed internal circulation water cooling system to ensure equipment safety

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