Delta to Y step up transformers
Delta to Y step up transformers
(OP)
Im looking to step up the voltage on 120/208 volt, 3 phase, 4 wire distribution system to 460 volt, delta, 3 phase, 3 wire... here's my question, Do I need to carry through the transformer a neutral or can i simply omit this connection?.
tveltre@tomvpe.com
tveltre@tomvpe.com






RE: Delta to Y step up transformers
The 460 (more commonly 480) V, 3 phase, 3 wire delta system, by definition, does not have a neutral point and no neutral conductor is required.
RE: Delta to Y step up transformers
Regardless, the systems are isolated and the neutral does not carry through. But the Y would have to be connected to ground and neutral for the 480V system if you needed a 480V 4 wire system with Y winding at 480V, and only ground if it's three wire.
I hope I'm not confusing.
RE: Delta to Y step up transformers
RE: Delta to Y step up transformers
Tveltre
RE: Delta to Y step up transformers
tveltre - Both gordonl and myself stated the neutral does not carry through because the circuits are electrically isolated. Based on your second posting, it appears you do not have a clear understanding of delta and wye systems. In that case, I would advise you to retain a qualified professional before proceeding.
RE: Delta to Y step up transformers
RE: Delta to Y step up transformers
RE: Delta to Y step up transformers
RE: Delta to Y step up transformers
RE: Delta to Y step up transformers
RE: Delta to Y step up transformers
the question is I got two identical 50kVA 400/2000V single phase transfers operating in parallel that is supplying a computer of 40kVA at 2000V and 0.80 PF leading.
I did a short cct test measured on the primary side of the transformer and Vprimary =31.622V and Pprimary=1250W
I want to find the primary voltage of the transformers neglecting no load losses and magnetizing effects and also the efficiency of the transformer bank operating for this load
thx.. I tried to look up books to solve this but I cannot..it is so hard!!! Please help me