Electronics > Beginners
Heavy duty AC to DC converter required
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mche1997:
Sorry Oldway, should had explained everything clearly at first. At this point, it will be for experimental purpose as everything is put together in a mess, bit by bit, removing parts and replacing parts. It's only when I get it right and having it tested time after time, then I'll make another proper one. I want to do engine carbon cleaning later if I get this to work.
Sorry guys and excuse for the confusion.
oldway:
With a budget of only 250€ for a 240Vac/300Vdc 12A converter, no way to buy new transformers....You will have to look in the dumpster or at used transformers...


You need: a 3KVA's 240/240V isolation transformer
a 240/48V 800VA transformer
a 1KVA variac 0-240V

For exemple, I bought a used (like new)1KVA variac for 30€
I found a 1KVA isolation transformer for nothing...(you should use 3 in paralel)
It was coming from dismounting of old medical devices.

mche1997:
Thank you again for your information Oldway
Would I be able to use a Chassis transformer but placing it in a plastic junction box, just need everything as compact as possible as my enclosure only measures 60cm x 40cm x 40cm ?
oldway:
As it is an experimental project, not a commercial one, enclosure is not a concern....  |O
oldway:
Let us resume your question: you have no money, you have a limited volume, no knowledge in power electronics and you need a ac/dc converter with output adjustable from 200 up to 350V 12A (4200W) with power factor and efficiency good enough to not trip your 32A circuit breaker of your 240V 1 phase mains supply.....

The answer to your question: NO SOLUTION at all, you are looking for miracles.
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