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how do you solve for power factor when KW and PF are unknown?

KVA is 351.25

I = 422


Three phase 1.732

This maybe a stupid question, but how do I solve for KW or PF without knowing either one?

1 Answer

  • James
    Lv 6
    8 years ago
    Favorite Answer

    PF = Kw/ sqrt (Kw^2 + Kvar^2)

    Kva = sqrt (Kw^2 + Kvar^2)

    Pf = cos angle between voltage and current

    In order to calculate PF you must know two of the following: Kvar ,Kw , Kva, angle between voltage and current.

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