Answer Posted / engr. tariq

Formula :

C = P (tan|old - tan| new) divided by Omega (w) and then
divided by Voltage (RMS) or Vrms.

theta (|) can be calculated by knowing cos theta OR power
factor. Example PF is 0.77 then Cos theta = 0.77 and Cos
inverse (0.77) = 39.646 = Theta OLD. Now

Now if i want to improve PF to 0.9 then theta = Cos inverse
0.99 = 25.841 = theta New.

After calculating theta put it in the Given formula to
calculate Capacitance required.

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