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| phase convertor |
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| DavidA:
I understand that one justification for the change was that colour blind people have problems with red and green. Dave. |
| lordedmond:
Yep one of the electricians I worked with during my time was colour blind on red and green , it was the old TRS cable that he had trouble with especially in the moulding shops CB is common in males but uncommon in females , my daughter is CB on R and G , but I am ok and there is no history in mine or the wife's family . To the OP sorry to derail your thread you did a good job on the phase converter , what's the PF like , do the caps provide enough lead to counteract all the inductance in the circuit with two motors running Stuart |
| DavidA:
Andrew, The book arrived yesterday and I had a quick scan of the relevant parts. It appears that the heart of the whole thing is the 240 to 415 Volt auto transformer conversion. The rest being a normal Steinmetz capacitor arrangement driving an idler motor. So I don't anticipate too many problems. I've done a couple of transformer rewinds in the past and found the most difficult part getting the lamination's back in place. Now need to go have a good look at my old stick welding set. Dave. |
| Andrew Wildman:
dave, I did not rewind my welder. I looked specifically for a 240/415 v input version and then just connected 240 in and 415 out (built a little terminal box that sits on the top plate) also means it still works as a welder :zap: |
| DavidA:
Andrew, That's cheating; but a good idea. I may look around for a dual voltage welder on ebay and sell my present single voltage one. Lot's of options. Dave. |
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