Jan 23, 2009 · There is less stress on a delta connected transformer from heavy motor starts than on a wye. And, of course, there is alot of single phase 240 V equipment as well as 240 V three …

Feb 22, 2017 · Yeah that sounds like a corner grounded delta. The point of it is to have a grounded system. For big motor loads like saw mills and irrigation pumps, delta transformers …

Mar 7, 2009 · I have a situation with some new machinery coming to a factory. The engineers say the equipment needs 480V Y but it doesn't need a neutral. Presently the plant only has a …

Dec 29, 2024 · We just moved from a location with a High-Leg Delta Panel: 120/120/208vac and into a building with 3-Phase Wye panel: 120/120/120vac all legs to ground and 208 between …

Feb 20, 2015 · While a wye grounded primary delta secondary is a functioning connection it has one major draw back: the closed delta secondary turns the transformer bank into a grounding …

Mar 28, 2025 · For context, this is a 480-120V delta-wye transformer, that was found with no ground to N connection on secondary side. Having an electrical engineering background, this …

Feb 2, 2016 · The transformer we have available is a 30 KVA 480 Delta to 120/208 Wye. We are obviously going to use it to step the 208 up to 480. My question is, since the 208 wye side of …

Apr 28, 2011 · on a delta delta and a delta wye trans. what are they and how do they work/apply to the panel and load? :001_huh:

Aug 23, 2019 · So we have a water plant with a 480 delta service, was a 240V service until a few years ago so all the old stuff is running off a 480V primary, 240V with 120V lighting tap …

Dec 27, 2023 · It looks like with the transformer you have along with your voltage readings, you have a delta ungrounded secondary. There is no way to ground the delta secondary you have …