There is a good method for calculating the load circuit of the intermediate frequency electric furnace.
Induction melting furnace principle : There is a good method for calculating the load circuit of medium frequency electric furnace
(1) Frequency electric load circuit Q value, based on experience, taking Q smelting furnace 12, i.e., Q = 12.
( 2 ) The impedance of the intermediate frequency electric furnace load circuit load tank resonance is
( 3 ) Large capacity Qc of medium frequency electric furnace capacitor
If you choose a capacitor with RFM1.6-2000-0.5s specifications, you need about 20 units.
4 Medium frequency electric furnace current transmission channel material selection
The current carrying capacity of copper material has a great relationship with the current frequency. Generally speaking, the higher the frequency, the smaller the current carrying capacity of the copper row, and the water cooling can increase the current carrying capacity per unit section. The following empirical values are for reference only:
The power frequency incoming copper cable and copper discharge current are selected according to 2~3A/mm 2 ; the DC copper discharge current is selected according to 1.8 - 2.5A/mm 2 ; the intermediate frequency copper cable and copper discharge current ( related to frequency ) are 1.5. ~2.0A/mm 2 choice; water-cooled copper row is selected by 4~8A/mm 2 ; water-cooled cable is selected by 8~15A/mm 2 ; sensor copper tube is selected by <60A/mm 2 .
