I never had any problems with the color coding of mains cables on unknown transformers but this one is really all over the place and it has nothing written on its label to make matters worse. I really don't know how to further test this without powering it up but since I'm a bit unsure on how to connect it to the mains I'd like to hear some opinions about it. I get 0.005 ohm between the green and green and blue green and 0.000 between either black brown black/blue. On what appears to be primary again (no wiring on the other side) I see two green cables (gnd?!) and one blue. As you can see from the picture it has blue/brown (neutral/hot) on one pin of the primary(?) and two blacks (hot again) on the other pin. I brought it home but didn't try to power it up because I'm not really sure of the wiring it looks like an isolation transformer but the colors of the cables don't make much sense to me. Hi all, I came across a beefy transformer today at a flea market and thought about trying my luck buying it.
