In exisiting casting market, thristor type medium frequency induction and new generation of IGBT dual cell transistor medium frequency indduction melting furnace.
Compared with thyristor , the third generation of IGBT transistor can not only control conduction, but also can control its turn-off action at will. However, thyristor must be passively turned off and require time to finish this action, this makes inverter power factor of IGBT transistor type much higher (≥97%) and furnace voltage much higher as well under the same input voltage (380V). IGBT inverter voltage is around 2800V, while inverter voltage of traditional thyristor is only 750V ~ 800V, so inverter voltage is four times higher than that of thyristor type, 15% power energy can be saved.
Germany's Infineon's innovative IGBT5 technology and XT technologies were first applied to expand well-known PrimePACK, increasing power density by 25% compared to the fourth generation technology (2012-2016). This increases its life to 10 times longer than before and current covering range is increased to 1800A/1700V as well.
Thick raw material for furnace shell, reasonable match between induction ring and capacitor, intelligent type digital main control board, constant output and high efficiency power factor are guarantee for quick melting speed.
Safety is the first important thing that all casting factories are concerning about, our induction melting furnace system is equipped with many security measures for this such as Hydraulic lock for furnace,Interlock of power supply cabinet door,Grounding protection,drop-roof hood of furnace,Emergency power supply,Detecting system for molten iron leakage out of furnace,Protection against accident due to high temperature of water and water leakage etc..
One power supply cabinet can supply power to one furnace , two furnaces or multiple furnaces at the same time to achieve continuous molten iron in the casting process.
Steady operation and reliable performance. Even if short circuit, ignition, steel penetration or water-cooled cable breakage due to burning occurs, IGBT can not be damaged at all, these makes the IGBT system run without too much aftersales problem and greatly reduces maintenance costs, it also has such features as higher durability, lower operating noise, high over-load capacity and no special requirements for working environment.
Induction melting furnace power supply, thyristor serial-connected inverter medium frequency power supply , one power supply cabinet drives two furnaces
Type | DX-250Kw |
inlet power supply ( V) | 380V/ three phases |
inlet current ( A) | 406A |
Direct current voltage (V) | 500 |
Direct current (A) | 500 |
medium frequency voltage (+-10%) V | 1200 |
medium frequency (Hz) | 100-500Hz |
medium frequency power (Kw) | 250KW |
Suitable for melting iron, steel, copper, alumimum and alloy and other metals.
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The Induction Melting System is packaged and shipped in the following manner: