teufelhounden91
Senior Member
- Location
- Austin, TX, USA
Can you tell by looking up at a 3ph utility pole whether it is delta or wye and whether it is corner or center tapped? I came across an unlabeled service and subpanel today and read 217v line to line and 120v line to neutral. Trying to hook up motors and I'm assuming that is just a high 208v reading but it could also be a terribly low 230v reading. (Either way my calcs will be under the 208v column in 430.250 because it's lower than 220v - but damn it's right in he middle)
I still know I have 120v line to neutral and no high leg so it's not delta period. So it has to be 208v wye. However hypothetically...if I didn't have access to the panel can I look up and see somehow what I have?
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I still know I have 120v line to neutral and no high leg so it's not delta period. So it has to be 208v wye. However hypothetically...if I didn't have access to the panel can I look up and see somehow what I have?
Sent from my iPhone using Tapatalk