Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.

Electrical engineering ?

If I check the voltage of a 3 phase panel. How do I know it's a wye or delta coming from the transformer?

2 Answers

Relevance
  • John
    Lv 6
    5 days ago

    Picture a Wye transformer in your mind, the center is ground. Three phase is easy, a servo motor has at least four phases. I'll attempt to answer your question, if it works don't f'uck with it. : )

  • 6 days ago

    you don't, you have to look at the transformer. But a delta would not have a neutral, just 3 hot wires, whereas a Y does have a neutral plus 4 hots.

Still have questions? Get your answers by asking now.