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hello every one,
what is the difference between the Kvar and farads, Rating
on Power capacitor is for eg: x kvar, and normal capacitor
is eg: x farads.
what is the relation between these two?
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Answer Posted / wareagle
KVAR : stands for Kilo Volt Ampere Reactance , used to
measure maximum reactive power (imaginary) that can the
capacitor stands
Farad : unit of measuring the capacitance of the capacitor
Depends on your source voltage and frequency.
VAR = reactive power = V*I (for a capacitor)
For a capacitor in a steady state AC circuit, V = I/(jwC) =
I/(2*pi*f*C) or I = 2*pi*f*C*V
Substituting, then
VAR = C*(2*pi*f*V^2)
kVAR = VAR / 1000
| Is This Answer Correct ? | 4 Yes | 1 No |
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