Screwloose
Member
- Location
- Maryland
- Occupation
- Fabricator
I have a building with an old 240V corner-grounded delta service, and I need to bump one circuit to 480V for a couple of small motors and control panels. Wiring the motors for 240V was the first thing I checked and that's not an option, plus the control panels include VFDs that will be very unhappy about hooking up to corner-grounded delta.
The right answer is to use a 240Δ primary, 480Y secondary transformer that's listed for step-up use, with the neutral bonded on the secondary, correct? Trying to sanity check myself since virtually all of my experience is going in the other direction.
The right answer is to use a 240Δ primary, 480Y secondary transformer that's listed for step-up use, with the neutral bonded on the secondary, correct? Trying to sanity check myself since virtually all of my experience is going in the other direction.
