How to choose inverter thyristor for indukcijska peć za topljenje?

1) Odaberite u skladu sa radnim frekvencijskim opsegom indukcione peći za topljenje;

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) Odaberite prema izlaznoj snazi ​​indukcione peći za topljenje;

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.

Odabrani strujni tiristor 300A/1400V snage između 50KW i 100KW. (380V fazni napon)

Odabrani strujni tiristor 500A/1400V snage 100KW-250KW. (380V fazni napon)

Odabrani strujni tiristor 800A/1600V sa snagom u rasponu od 350KW do 400KW. (380V fazni napon)

Odabrani strujni tiristor 1500A/1600V snage između 500KW i 750KW. (380V fazni napon)

Odabrani strujni tiristor 1500A/2500V snage između 800KW i 1000KW. (660V fazni napon)

Odabrani strujni tiristor 2000A/2500V snage 1200KW-1600KW. (660V fazni napon)

Odabrani strujni tiristor 2500A/3000V snage između 1800KW i 2500KW. (1250V fazni napon)