When i went to a interview the interviewer ask me a
question for that i cant able to answer him if anyone knows
answer me
How will you design a capacitor bank for a plant? if my p.f
is 0.6 i have to improve it to 0.9 or 1 what kind of steps i
have to do? and is there any formula for calculating this?

Answer Posted / kaushik

if we are talking for 0.6 pf laging to 1 pf then we require
a capacitor bank.
the rating of the bank will be=v*i*sin(angle) in vars
angle=cosinverse(0.6).
if we are talking for 0.6 pf leading to 1 pf then we require
a inductor bank.
the rating of the bank will be=v*i*sin(angle) in vars
angle=cosinverse(0.6).
v=supply line voltage.
i=line current.

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