[SOLVED] Welding transformer design-calculation

[DraganM]

I try to find welding transformer design-calculation but so far no luck. Any help is welcome. I send for standard EI transformer calculation up to 1KW.

 

[vahidff]

Hello
I'm interested in making this device. Unfortunately, most resources are Russian. If you have information on this case please help me

Special thanks

 

[DraganM]

So far no luck, still searching.

 

[dick_freebird]

Old-school welders use a variable-core scheme where
the "iron" is moved into the solenoid to set an output
current level. Similar to a mag-amp. I expect any science
behind this, is pretty old and not common in research
papers.

New welders are just big DC-DC converters with peculiar
control scheme(s).

 

[DraganM]

Thank for good tips. So far I search practical transformer calculation in short circuit mode. I think this is used for making transformer for welding. Correct me if I am wrong.
Any advice or idea is welcome.

 

[BADFLOPPY]

For design details, consult Machine design book by V. K. Mehta used in BE course of Electrical Engineering.