380v rated Plasma Cutter not working with 220v-380v transformer.

[kaaljoy]

I have a 380v rated plasma cutter. However, my power line is 220v.
I have a transformer to convert the 220v input into 380v output.
After checking with multimeter the input voltage is found to be 227v and output voltage is found to be 410v.
However, the plasma cutter doesn't work. The plasma cutter has been checked in the retailer hardware shop by using 440v line. It works fine over there.
Any suggestions/insights on what's going on? Do I need a 440v dedicated power line instead of the transformer?

https://imgur.com/a/WL2NMem

 

[FvM]

What's the input connection scheme in product manual? Is it three-phase?

 

[kaaljoy]

What's the input connection scheme in product manual? Is it three-phase?

I wasn't fully aware of the 3 phase requirements of the machine...but as I understand it more now, it is a 3 phase input machine...here is the data table found underside of the machine.

Is there any way of running it with this single phase transformer?

 

[FvM]

Presume the device needs 3 phase input, the type plate is not very clear, but "3-50 Hz" has to be read so. There's no way to generate 3 phase from single phase by simple methods. Plasma cutters with 230V single phase supply are available on the market with lower power.

 

[dick_freebird]

I would imagine that the difference is just the rectifier pack
(6 vs 4 diodes) and "whatever" ratio, and that if the DC main
supply got right, you might be in luck.

The DC main at 410V with only 2 of the 3 legs, might be
under "undervoltage lockout" for the control electronics.

If you can find a 240V-input Variac you might be able to
poke at that using your isolation xfmr (or maybe a better,
like 240:480V, for some extra oomph - Variacs I have, won't
go over 110% of line in) and substitute a proper rectifier set.

Might want to go chase service manuals on the web, see if
you can find any guidance about the proper DC rail voltage
inboard of the rectifiers & filtering.