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Question
how to caluculate APFC panel rating, my running Load is 
1320KW, Present P.F 0.76 to 0.8 we need 0.98 p.f
 Question Submitted By :: Mechanical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
KVAr = KW(multiplication factor )
1320(tan@1-tan@2)
cos@1-intial P.f
cos@2-final P.f
kvar=1320(0.541)
Kvar=715
 
Is This Answer Correct ?    79 Yes 13 No
Ak
 
Answer
# 2
we required runnig load and maximum demand also

then only we will get perfect KVAR
 
Is This Answer Correct ?    36 Yes 7 No
Anjaneyulu
 
 
 
Answer
# 3
Answer 3 is correct one. 
Is This Answer Correct ?    22 Yes 10 No
Prakash Suhane
 
Answer
# 4
Please refere Capacitor manufacturers catlogue where there
is table to improve PF Vs. Load.
 
Is This Answer Correct ?    46 Yes 35 No
Ytd
 
Answer
# 5
please give the details how much is your inductive load (
motor ) or give the connected load list & presently
connected capacitor.( kvr)
 
Is This Answer Correct ?    8 Yes 0 No
Santosh
 
Answer
# 6
Input Initial Power Factor : .76
Input Desired Power Factor: .98
Input Load KW (KW) : 1320 KW


SO KVAR NEEDED TO ATTACHED :860 KVAR IF U WANTS .98

KVAR NEEDED TO ATTACHED :940 KVAR IF U WANTS .98
THESE 2 PANELS U NEED TO BE INSTAL ON THIS CONNECTED LOAD
AND ALSO DEMAND WILL GO DOWN

VISIT: www.sigmacontrols.net
 
Is This Answer Correct ?    15 Yes 9 No
Ajeet Singh
 
Answer
# 7
CHECKED THE WHOLE DAY LOAD CACLULATION
CHECHED THE KVARH, KVA, KWH READING
 
Is This Answer Correct ?    8 Yes 3 No
Tejas Doli
 
Answer
# 8
KVAR Required = Operating KW x [Tan (A1) - Tan (A2)]

Where A1 = Inverse Cosine of present power factor
= Cos-1(0.78)
= 38.739
A2 = inverse Cosine of desired power factor
= Cos-1(0.98)
= 11.478
Tan(A1)=Tan(38.739)=0.8022
Tan(A1)=Tan(11.478)=0.2030
Hence,
KVAR Required=1320 x (0.8022-0.2030)
SO KVAR NEEDED TO ATTACHED=790 kVAR
 
Is This Answer Correct ?    4 Yes 1 No
Deniram Anandrao Nikhare
 
Answer
# 9
KVAR Rating = 860kvar or 714kvar 
Is This Answer Correct ?    8 Yes 6 No
Md.aftab Alam
 
Answer
# 10
290 kvar panel of 14 stage
conected relay {fifo}
 
Is This Answer Correct ?    4 Yes 2 No
Ajay Sharma
 

 
 
 
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