How to choose inverter thyristor for tungku lebur induksi?

1) Pilih nurutkeun rentang frékuénsi operasi tina tungku lebur induksi;

The frequency is 100HZ—500HZ and the selected turn-off time is 20µs-45µs KK type thyristor.

The frequency is 500HZ—1000HZ and the selected turn-off time is 18μs-25μs KK type thyristor.

The frequency is 1000HZ—2500HZ and the selected turn-off time is 12μs-18μs KK type thyristor.

KKG-type thyristor with a frequency of 2500HZ—4000HZ and a selected turn-off time of 10µs-14µs.

The frequency is 4000HZ—8000HZ, and the selected turn-off time is 6μs—9μs KA type SCR.

2) Pilih nurutkeun kakuatan kaluaran tina tungku lebur induksi;

According to the theoretical calculation of the parallel bridge inverter circuit, the current flowing through each thyristor is 0.455 times the total current. Considering that enough space is left, a thyristor with the same size as the rated current is usually selected.

Thyristor 300A / 1400V ayeuna anu dipilih kalayan kakuatan antara 50KW sareng 100KW. (380V tegangan fase-in)

Dipilih ayeuna 500A / 1400V thyristor kalawan kakuatan 100KW-250KW. (380V tegangan fase-in)

Dipilih ayeuna 800A / 1600V thyristor kalawan kakuatan mimitian ti 350KW mun 400KW. (380V tegangan fase-in)

Thyristor 1500A / 1600V ayeuna anu dipilih kalayan kakuatan antara 500KW sareng 750KW. (380V tegangan fase-in)

Thyristor 1500A / 2500V ayeuna anu dipilih kalayan kakuatan antara 800KW sareng 1000KW. (660V tegangan fase-in)

Dipilih ayeuna 2000A / 2500V thyristor kalawan kakuatan 1200KW-1600KW. (660V tegangan fase-in)

Thyristor 2500A / 3000V ayeuna anu dipilih kalayan kakuatan antara 1800KW sareng 2500KW. (1250V tegangan fase-in)