How to choose inverter thyristor for fatana fandoroana induction?

1) Mifidiana araka ny isan-karazany miasa matetika ny induction lafaoro fandoroana;

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) Misafidiana araka ny herin’ny lafaoro fandoroana induction;

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.

Ny thyristor 300A / 1400V voafantina ankehitriny miaraka amin’ny hery eo anelanelan’ny 50KW sy 100KW. (380V phase-in voltage)

Ny thyristor 500A / 1400V voafantina ankehitriny miaraka amin’ny herin’ny 100KW-250KW. (380V phase-in voltage)

Ny thyristor 800A / 1600V voafantina ankehitriny miaraka amin’ny hery manomboka amin’ny 350KW ka hatramin’ny 400KW. (380V phase-in voltage)

Ny thyristor 1500A / 1600V voafantina ankehitriny miaraka amin’ny hery eo anelanelan’ny 500KW sy 750KW. (380V phase-in voltage)

Ny thyristor 1500A / 2500V voafantina ankehitriny miaraka amin’ny hery eo anelanelan’ny 800KW sy 1000KW. (660V phase-in voltage)

Ny thyristor 2000A / 2500V voafantina ankehitriny miaraka amin’ny herin’ny 1200KW-1600KW. (660V phase-in voltage)

Ny thyristor 2500A / 3000V voafantina ankehitriny miaraka amin’ny hery eo anelanelan’ny 1800KW sy 2500KW. (1250V phase-in voltage)