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Homework Help: Harmonic, displacement and input power factor

  1. Nov 22, 2011 #1
    1. A single phase half controlled bridge rectifier operated from a120V 60Hz ac supply. The load
    current with an average value of I is continuous and negligible ripple content. If the delay angle
    of thyristors is 60, calculate,
    i) The harmonic factor of the input current
    ii) The displacement factor
    iii) The input power factor

    PF = Is1/Is2*cosψ

    What is ψ? i think that ψ=arctan(wL/R), if so what are L and R?
  2. jcsd
  3. Nov 22, 2011 #2
    i need to solution in haste
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