Your sub is not 120/208 if the neutral is not connected.
when i take readings, each leg is 120 but together is 208... of course im reading from leg to ground since the nuetral isnt connectedYour sub is not 120/208 if the neutral is not connected.
perhaps the explanation is wrong... but by the looks of it in the pic... does that even look correct ??? if so, then what reading should i be getting ??? so i can try that tomorrow... heres a pic of the transformer labelHow can that be if the secondary mid tap(neutral) is not landed? Something you’re explaining is not correct.
ok... so whoever wired this sub wired it wrong... is that right??? the nuetral should connected, right ? as well, heres a pic showing the nuetral not even connected inside the transformer when coming to the subThen the center tap is grounded. Like this Mike Holt diagram. Your neutral needs to landed in the sub.
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exactly... this whole thing threw me off... never seen someone do this.. it threw me way off... i knew this was wrong lol... thanksAny 120 volt loads are now returning on the ground wire. That is a violation.
That is what it looks like to me. Just switch the white wire with the green or you can pretend the green is really white and it is compliant. That is if all secondary bonding and grounding is done in the panel and no XO to case at the transformer. .Where is the green wire landed? Somehow the green wire is connected to the transformer X0. So it’s either landed on X0 directly or there is a bonding jumper in the transformer and it’s landed on the chassis of the transformer.
If X0 is bonded in the transformer and you’re bonded in the panel (which it appears that you are) double bonded which is not code compliant. If you want to bond at the transformer and run the neutral you would need to separate all the grounds and neutrals in the panel.
What’s even stranger to me is why they’re feeding a single phase panel with a three phase transformer? It will never be balanced not using the third leg.
If he would have said 480v to 120/240 single phase it would have made more sense.where is the 3rd phase?
this whole thing looks wrong..