power factor correction cap

Discussion in 'General Electronics Chat' started by lokeycmos, Oct 7, 2011.

  1. lokeycmos

    Thread Starter Active Member

    Apr 3, 2009
    432
    7
    im working on the power factor correction cap for my tesla coil. math says the ideal PFC cap is 82.9uF for my situation. i have two caps(both are AC Rated) that arnt that close. what i have is a 61uF and a 127uF.i guess what im wondering is, is it better to go under or over? or, could i take a couple DC caps and put them back to back(+/-)-(-/+)?
     
  2. #12

    Expert

    Nov 30, 2010
    16,261
    6,774
    I'd say, "go under". Going over causes unnecessary current surges.
     
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