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Lab-3 phase star connected system

  1. Apr 2, 2014 #1
    1. The problem statement, all variables and given/known data

    Is common point(O) equal to netural terminal?
    eg: Vo=Vn??
    V(L1-o)=V(L1-n)??

    3. The attempt at a solution

    The first one is what I measured in a lab.
    The second one my prediction if the phase reversed,base on the first one
    is it reasonable?

    attachment.php?attachmentid=68240&stc=1&d=1396439983.jpg
     

    Attached Files:

    Last edited: Apr 2, 2014
  2. jcsd
  3. Apr 2, 2014 #2

    NascentOxygen

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    Staff: Mentor

    Point O is the star-point. There will be no voltage difference between Point O and the neutral lead providing all is perfectly balanced.

    When O is not connected to neutral you have a floating star-point.
     
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