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?
Answers were Sorted based on User's Feedback
Answer / joel q.
You must add a capacitor bank. you can determine the size
of the capacitor to be added using the following formula.
KVAR = KW*Tan((arccos0.6) -(Arccos0.9))
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / raju
to improve powerfactor only capacitor banks should be used
but not inductor as capacitor having leading pf which wil
reduces reactive power and improves pf
| Is This Answer Correct ? | 3 Yes | 3 No |
Answer / 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.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / amrish sharma
just calculate total load of plant,,, then use capacitor 30
percent rating of total load,,, example if you have hunderd
ampere load then use 30Kvar capacitor,,,
| Is This Answer Correct ? | 1 Yes | 2 No |
Answer / saravanakumar
If you want improve your power factor, you should provide a
capacitor bank.The rating of the bank is 1/3 rd of the
transformer ratings.
| Is This Answer Correct ? | 1 Yes | 4 No |
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