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(Solved): A balanced star-connected 3-phase load is fed by a balanced 3-phase voltage source through a transm ...




A balanced star-connected 3-phase load is fed by a balanced 3-phase voltage source through a transmission line, per figure be
A balanced star-connected 3-phase load is fed by a balanced 3-phase voltage source through a transmission line, per figure below, calculate: a) Phase voltage of the star-connected load, b) Active and reactive power drawn by the star-connected load, c) Power lost in the transmission line,


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Given values for    and
   ,, and   

  
so,   

Now, phase voltage across    is given by:

  
put the value of    in above equation
  

  


In star connection per phase voltage is equal to line/(sqrt3).



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