Open leg on a wye sytem (With neutral)

This week I got a call from someone who was having an issue with a 3 phase wye configuration system. It turns out that they had lost a line, and noticed that the motor still ran but was making a funny noise. This is commonly called single phasing and can damage a motor if you don’t take care of it ASAP.

I get emails weekly about 3 phase systems and how they work. To learn more about 3 phase you can take a look at the YouTube channel. Make sure you subscribe as I am adding videos constantly. This weeks video focuses on what happens in a three phase system when a leg is lost. Click above to watch.

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