hardworkingstiff
Senior Member
- Location
- Wilmington, NC
I sure hope I can ask my question correctly. Here goes.
Hypothetically, we have a 3-phase WYE transformer feeding some dwelling units. To make it easy, let?s say 3 units and the units are connected to the transformer ABN, ACN, BCN.
Let?s say something happens to the transformer and C phase is lost, burnt out, nothing coming through it. So you have A and B phases and N.
What happens to the voltages on A and B? Nothing? Something?
My question is doesn?t the transformer (after C coil failure) electrically become a single-phase center-tapped transformer? If so, then the voltage would need to change, right? Would the voltage then become 104/208?
Hypothetically, we have a 3-phase WYE transformer feeding some dwelling units. To make it easy, let?s say 3 units and the units are connected to the transformer ABN, ACN, BCN.
Let?s say something happens to the transformer and C phase is lost, burnt out, nothing coming through it. So you have A and B phases and N.
What happens to the voltages on A and B? Nothing? Something?
My question is doesn?t the transformer (after C coil failure) electrically become a single-phase center-tapped transformer? If so, then the voltage would need to change, right? Would the voltage then become 104/208?