three phase delta load problem

Discussion in 'Homework Help' started by skyline1397, Feb 11, 2019.

  1. skyline1397

    Thread Starter New Member

    Sep 13, 2017
    2
    0
    Hi all,
    I have solved the problem attached and my answer isn't the same as the solution manual. Can you please review and advise me if I am wrong or not?
    The problem is:
    problem.png

    The solution manual approach:
    solution manual.png

    My approach:
    my solution.png
     
  2. Tech_Elect

    New Member

    Feb 13, 2019
    7
    0
    Hi,

    it's a delta load so you have to multiply the formula of active power P by root of 3 because the delta load is subjected to line voltage.

    for me the whole procedure of the text is correct.

    in fact, phase current = line current (in this case for delta load)
    (from what I could understand by reading the text)*

    18.04 A (line current)

    the line current leads the phase current of 30 ° angle

    Regards
     
  3. Tech_Elect

    New Member

    Feb 13, 2019
    7
    0
     
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