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Series one drive one

Useage : 

Forging, metallurgy, precision casting, heat treatment, welding, bending and other industrial fields


The series inverter adopts frequency modulation and power adjustment, that is, the power of the equipment is adjusted by changing the inverter frequency. The rectifier part of the thyristor is completely in the on state, and the inductance and capacitance are filtered. Unlike the parallel resonance, the output power is adjusted by adjusting the DC voltage. In the medium frequency electric furnace and the post-heating process, the thyristor is still fully open, greatly improving the power factor of the equipment and preventing the pollution of the high-order harmonics to the power grid.

The higher harmonics mainly come from the glitch voltage generated by the thyristor during the voltage regulation of the rectification part, which will seriously pollute the power grid, causing other equipments to fail to work normally, and the rectification part of the energy-saving series resonance type medium frequency power supply adopts a semi-controlled rectification method. The DC voltage always works at the highest level and does not adjust the conduction angle, so it does not generate high-order harmonics, does not pollute the power grid, and does not interfere with the operation of other electronic equipment in the factory.

The device adopts a series resonant medium frequency induction melting furnace. Its inverter device is a half bridge series inverter. It is mainly used for melting ordinary carbon steel, alloy steel, cast steel and non-ferrous metals. It has fast melting speed and energy saving. High-order harmonic pollution and other advantages.


◆ The power supply can be supplied with 380v-1000v voltage.

◆ 12 pulse no pollution to power supply meet the national requirements.

◆ The power of molten iron in the furnace can be adjusted to the maximum within the range of 0-100%.

◆ In the case of not raising the voltage of the incoming line, the rectified output voltage is doubled to reduce the loss of the circuit.

Parameters Table

Model Input voltage Input current Dc voltage Dc current MF viltage MF frequency MF Power Capacity
KGPS-CL-250KW 380V/3-phase 408A 500A 500A 1800V 100-600HZ 250KW 0.25T
KGPS-CL-500KW 380V/3-phase 816A 500A 1000A 1800V 100-600HZ 500KW 0.5T
KGPS-CL-800KW 380V/3-phase 1305A 500A 1600A 1800V 100-600HZ 800KW 1T
KGPS-CL-1000KW 575V/6-phase 526A 775A 1290A 2800V 100-400HZ 1000KW 1-1.5T
KGPS-CL-1200KW 575V/6-phase 631A 775A 1548A 2800V 100-400HZ 1200KW 1.5-2T
KGPS-CL-1500KW 575V/6-phase 789A 775A 1935A 2800V 100-400HZ 1500KW 2-3T
KGPS-CL-2000KW 575V/6-phase 1052A 775A 2580A 2800V 100-400HZ 2000KW 2-3T
KGPS-CL-2500KW 575V/6-phase 1315A 775A 3225A 2800V 100-400HZ 2500KW 3-5T
KGPS-CL-3000KW 575V/6-phase 1578A 775A 1179A 2800V 100-300HZ 3870KW 3-5T
KGPS-CL-3500KW 575V/6-phase 1842A 775A 4516A 2800V 100-300HZ 3500KW 4-6T
KGPS-CL-4000KW 575V/6-phase 2105A 775A 5161A 2800V 100-300HZ 4000KW 5-7T
KGPS-CL-5000KW 575V/6-phase 2632A 775A 6451A 2800V 100-250HZ 5000KW 8T
KGPS-CL-6000KW 575V/6-phase 3158A 775A 7741A 2800V 100-250HZ 6000KW 8-10T
KGPS-CL-8000KW 660V/12-phase 1833A 890A 8988A 3000V 100-500HZ 8000KW 10-12T
KGPS-CL-10000KW 660V/12-phase 2291A 890A 11235A 3000V 100-500HZ 10000KW 15T
KGPS-CL-15000KW 660V/12-phase 3448A 890A 16853A 3000V 100-500HZ 15000KW 20T

Grouped Equipment

Operation process

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