Delta-Delta tranformer for industrial plant

[bahogge]

I need an electrical service for a 4160V machine. I will have a dedicated transformer that feeds a 5kV SWGR which serves the machine. Is there any reason to specify a delta-wye over a delta-delta transformer if there is no need for a neutral conductor?

 

[jim dungar]

I need an electrical service for a 4160V machine. I will have a dedicated transformer that feeds a 5kV SWGR which serves the machine. Is there any reason to specify a delta-wye over a delta-delta transformer if there is no need for a neutral conductor?

A wye secondary provides a convenient and easy method of grounding the system.
Grounded wye systems let you use 100% insulation.