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Factor in the three phase

  • Thread starter darkmagic
  • Start date
  • #1
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Homework Statement



Can someone tell me how the (square root of three) factor is derived in a three phase generator?

Homework Equations





The Attempt at a Solution

 
Last edited:

Answers and Replies

  • #2
164
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Can someone show me the derivation?
 
  • #3
berkeman
Mentor
56,648
6,550

Homework Statement



Can someone tell me how the (square root of three) factor is derived in a three phase generator?

Homework Equations





The Attempt at a Solution

If you draw the three equally spaced voltage phases like in this diagram:

http://images.google.com/imgres?imgurl=http://www.mathworks.com/access/helpdesk/help/toolbox/physmod/powersys/ref/ac2_tor.gif&imgrefurl=http://www.mathworks.com/access/helpdesk/help/toolbox/physmod/powersys/ref/spacevectorpwmvsiinductionmotordrive.html&usg=__lb1lJAzzFBBuer3eWrlOL1NJDEM=&h=377&w=729&sz=26&hl=en&start=21&um=1&itbs=1&tbnid=MIbq7yliCVj7UM:&tbnh=73&tbnw=141&prev=/images?q=three+phase+generator&start=18&um=1&hl=en&sa=N&rlz=1T4GGLL_enUS301US302&ndsp=18&tbs=isch:1

You can see the they form equilateral triangles. What is the ratio of side lengths in a right triangle that bisects an equilateral triangle?
 

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