Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook