Transformers

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charlie b

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Lockport, IL
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What are the symptoms? Just saying it doesn't work is not enough information for us to help you.
 

jim dungar

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Wisconsin
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PE (Retired) - Power Systems
NissanTitan08 said:
I have a 480v 3p primary delta primary, 120/240 secondary Y transformer. Why am I only getting one leg working in the panel.

No you don't.
You have either a delta-wye of 480-208Y/120 3PH 4w, a delta-wye of 480-240Y/136 3PH 4W, or a delta-delta of 480-240/120 3PH 4W.

What 10 voltages are you getting?

Vab
Vbc
Vca
Van
Vbn
Vcn
Vag
Vbg
Vcg
Vng
 
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