Sure, you're welcome. I never learned polyphase power in school - I've had to pick it up along the way. The way I computed this is definitely valid, but it may not be the usual way to do it. I know that there are rules of thumb and shortcuts for delta and wye configurations, etc. To check my answers, I used LTSpice, a free circuit simulator from Linear Tech. I would recommend that you try using that to help you figure this stuff out. Nothing beats a quick way to check your answers! You can get it at: http://www.linear.com/designtools/software/ltspice.jsp Sean On Fri, Sep 4, 2009 at 11:38 AM, Aaron wrote: > Thanks Sean! > > I am in the process of digesting all that and working through it myself > with the help of some of my old textbooks... > > Aaron > -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist