I. 5 ton parallel induction melting furnace with ordinary classic line 

The 4000KW intermediate frequency power supply of the energy-saving 5 ton induction melting furnace melting furnace heating furnace adopts KGPS intermediate frequency power supply or 12-pulse intermediate frequency power supply by option, and the load adopts parallel resonance. The 12-pulse intermediate frequency power supply eliminates the 5th and 7th harmonics and greatly reduces the harmonic interference of the power grid. 

Technical parameters and equipment configuration of 5 ton parallel induction melting furnace for ordinary classic line 

Function, configuration and technical description of 5 tons parallel induction melting furnace : 

1. KYN28-12 high voltage cabinet (optional) 

High-voltage cabinet is a hand-mounted switchgear 

The high voltage cabinet is composed of VS1-12 vacuum circuit breaker, lightning arrester, high voltage isolating switch, voltage transformer, current transformer, transformer temperature display, and gas protection. 

Equipped with time-sharing meters, power factor meters, voltmeters, and ammeters on the high voltage cabinet 

2. Rectifier transformer (optional) 

Rectifier transformer is used to reduce the primary high voltage to the input voltage suitable for intermediate frequency power supply. It adopts a special high-impedance oil-immersed self-cooling rectifier transformer. 

This rectifier transformer generally adopts the Y / d11, Y0 connection group mode. The secondary output is two sets, one of which is a Y-type connection, and the other output is a d11-type connection. In this way, the phase of the two sets of outputs will be A difference of 30 ° from each other forms a 12-pulse rectification method. Compared with the six-pulse rectification, this rectification method can effectively suppress the 5th and 7th harmonics and reduce the interference of harmonic components on the power grid. Therefore, this rectifier transformer is used in large electric furnaces. 

Parameters of 12-pulse rectifier power transformer: 

Note: There should be no-load voltage-regulating switch on the high-voltage side of the transformer. The voltage can be adjusted in five steps: -10%, -5%, 0, + 5%, + 10%. 

Three, 5 tons of induction melting furnace water cooling equipment: (optional) 

HRBL-120T closed circulation cooling tower can also be purchased or built by yourself according to the situation. 

You can build a pool at the production site and use a water pump to circulate water to cool the 3 ton induction melting furnace . You can also choose a complete set of combined cooling equipment. It is recommended to use HRBL-120T closed circulation cooling tower, which can save a lot of production area. The technical parameters of the circulating water cooling 5 ton induction melting furnace are as follows: 

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