What is this part?

[wictor]

I'm repairing 200A TIG welder and there is a component that I haven't seen before. It's like a transformer and it has a black cap with two wires coming to it. Is it some kind of relay or what? I'll try to attach image...

[ataradov]

It is some specialized transformer for welders. If you search what is written on it, you will find some Thai site that sells them. Translating the listing name shows that it is a gate driving transformer.

Some of the listings even include the whole module board withe capacitors and diodes.

If it is dead, then it looks like there is no chance of finding a replacement.

[mon2]

https://shopee.co.th/Hang-sing-%E0%B8%AB%E0%B8%A1%E0%B9%89%E0%B8%AD%E0%B9%81%E0%B8%9B%E0%B8%A5%E0%B8%87-16-8-%E0%B8%AB%E0%B8%A1%E0%B9%89%E0%B8%AD%E0%B9%81%E0%B8%9B%E0%B8%A5%E0%B8%87%E0%B9%80%E0%B8%81%E0%B8%95%E0%B9%84%E0%B8%94%E0%B8%A3%E0%B9%8C-%E0%B8%AD%E0%B8%B0%E0%B9%84%E0%B8%AB%E0%B8%A5%E0%B9%88%E0%B8%95%E0%B8%B9%E0%B9%89%E0%B9%80%E0%B8%8A%E0%B8%B7%E0%B9%88%E0%B8%AD%E0%B8%A1-..-i.105451361.4378682352

[coromonadalix]

it says

Hang sing Transformer 16:8 Gatedrive Transformer Welding

[wictor]

Thanks to all!