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Series Resonance SCR Medium Frequency Power Supply
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  • Key Features

       Save energy depending on the characteristics of series inverter circuit, power consumption of every ton of steel can be controlled at the range of 530~600kWh/t.

       Without harmonic pollution to power grid, coincide with GB/T 14549-93 National Standards of Power Quality Public Power Grid Harmonic. It does not need equip extra harmonic eliminator.

       There is high power factor to power grid of the complete equipment without any power compensation device. The power factor keeps more than 0.97 automatically in the whole process of working.

       Reliable operation and few faults.

       Constant output power. The system will keep full load power in the whole process of working, enhance working efficiency and melting rate.

       Dual-track will be realized by series resonance circuit. The dual-track system of induction melting furnace is required by the automatic casting production line, in order to optimize process, improve the productivity and save energy. The power will be stepless distributed to two furnace bodies simultaneously at the range of 0~100% from one power supply cabinet. Such will be easy to realize and switch any one furnace body in melting and another in holding.


                 The sight of internal structure and appearance of GW-CL1600kW-B Type dual-track
    power supply cabinet


          Series Resonance Circuit SCR Medium Frequency Dual-track Melting Furnace Working Site

           In the left picture, the molten iron in furnace has reached the casting temperature and preserved by 10%~20% of total power distributed by power supply control system. The balance 80%~90% of total power is automatically distributed to another furnace for melting. When the left furnace finished casting, the molten iron in right furnace will just reach the rated temperature. The power supplied will be reduced and switched automatically to previous furnace for melting. Feed raw material to the left furnace and start another melting cycle. The technology will enhance the productivity, save energy, and optimize the craft process.

  • Series Resonance SCR Medium Frequency Power Supply


    Parameter name







    Rated capacity 1t 1.5t 2t 2.5t 3t 5t 10t
    02 Max capacity 1.1t 1.6t 2.2t 2.8t 3.2t 5.5t 11t
    03 Rated power 800kW 1200kW 1500kW 2000kW 2500kW 3000kW 6000kW
    04 Max power of single furnace 600kW 1000kW 1200kW 1600kW 2000kW 2500kW 5500kW
    05 Phase of input voltage 6phase 6phase 6phase 6phase 6phase 6phase 6phase
    06 Rectification model 12pulse 12pulse 12pulse 12pulse 12pulse 12pulse 12pulse
    07 Input voltage 380V 380V 380V 380V 480V 480V 575V
    08 Input current 480A 920A 1150A 1520A 1520A 1810A 3050A
    09 DC voltage 1000V 1000v 1000V 1000V 1250V 1250V 1500V
    10 DC current 600A 1200A 1500A 2000A 2400A 2400A 4000A
    11 MF frequency 350Hz 350Hz 300Hz 300Hz 200Hz 200Hz 200Hz
    12 Inductor voltage 2000V 2200V 2500V 2500V 2500V 2500V 3000V
    13 Working temperature 1600℃ 1600℃ 1600℃ 1600℃ 1600℃ 1600℃ 1600℃
    14 Melting rate 1t/h 1.5t/h 2t/h 2.5t/h 3t/h 5t/h 9t/h
    15 Power consumption 550kWh/t 550kWh/t 550kWh/t 550kWh/t 550kWh/t 550kWh/t 550kWh/t
    16 Cooling water of power supply 15m3/h 25m3/h 35m3/h 50m3/h 60m3/h 80m3/h 160m3/h
    17 Cooling water of furnace body 30m3/h 50m3/h 80m3/h 100m3/h 120m3/h 160m3/h 400m3/h
    18 Power factor ≥0.95
    19 Harmonic impact Accord with power quality public power grid harmonic harmonic GB/T 14549-93 national standards
    20 Transformer:rectify transformer for MF furnace specially Zs-800-10/0.4 Zs-1200-10/0.4 Zs-1500-10/0.4 Zs-2000-10/0.4 Zs-2500-10/0.4 Zs-3150-10/0.4 Zs-6000-10/0.4

    Primary:3 Phase/10kV,

    Secondary:6 phase,

    D/d0,Y11 connection,Impedance 8%

    380V 480V 575V
    21 The capacity of low voltage Switch cabinet:from transformer connect 3N/380V power supply to power supply LV switch control cabinet in 3 phase 4 lines(installed in MF power supply romm).

    Motor of hydraulic station:5kW,

    Power supply cool water tower: 10kW,

    Furnace body coll water tower:10kW,


    Total capacity:35kW

    Motor of hydraulic station:5kW,

    Power supply coll water tower:15kW

    Furnace body coll water tower:20kW,


    Total capacity:50kW

  • Series Resonance SCR Medium Frequency Power Supply
    Document Format File Size
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    SCR MF Spec Sheet 941 KB