Full Member level 3
Are PF and THD directly related in PFC circuit???If i am getting a THD of 11%,does that mean that its true Power factor is .994 by the formula PF=1/sqrt(1+sqr(THD))...
Yes, there's a direct relation. But total power factor is the product of displacement power factor (cos phi) and distortion power factor. In case you know that cos phi is unity (no reactive power) you can convert THD to PF, as calculated in your example.
All calculations here https://en.wikipedia.org/wiki/Power_factor