How to choose the thyristor for induction melting furnace?

The KP1000A1800V and KK1200A1800V used in the original thyristor of the induction melting furnace have burned two inverter thyristors, and then can I replace the two KK1500A1800V? Now that the high current burns through the inverter thyristor, is it possible to replace the thyristor without following the original specifications?

به طور کلی می توان تریستور را مطابق با مشخصات اصلی تعویض کرد. جایگزینی تریستور جدید باید بزرگتر از تریستور اصلی باشد. جریان مورد نیاز برای انتخاب تریستور چقدر است؟

Reasons for burning through the thyristor:

1. Overcurrent, causing burn through the thyristor,

2. کمبود آب باعث سوختن تریستور می شود.

3. There is a problem with the circuit, which causes more burning through the thyristor

4. The blockage of the water pipe causes more burn through of the thyristor

5 The ramming material of the induction furnace is not well laid, and the insulation performance is not good. The furnace ring of the inductor ignites the furnace shell.