Power Triangle

Discussion in 'Homework Help' started by lisa3412, Sep 12, 2014.

  1. lisa3412

    Thread Starter Member

    Sep 6, 2014
    37
    0
    I understood what you said. .what I don't understand is, why add 240 V? Isn't Vs= Is/Zline?
     
  2. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    790
    No.
    Firstly, voltage is current multiplied by impedance.
    The load end of the line is 240V. The linevoltage drop must be added to this to give the total source voltage.
     
  3. subtech

    AAC Fanatic!

    Nov 21, 2006
    123
    5
    Thanks t_n_k
     
  4. lisa3412

    Thread Starter Member

    Sep 6, 2014
    37
    0
    Ok! thank you. So, is Vs= 285 @ angle 1.94 ?
     
  5. t_n_k

    AAC Fanatic!

    Mar 6, 2009
    5,448
    790
    That's close enough - I have it as 286.3 @ +1.95 degrees [Volts]

    Well done!
     
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