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Power Factor Correction Calculation
Power Factor Correction Calculation

Calculation of the energy savings

In order to calculate power factor correction for your installation, your should follow the steps below:

Step 1 – Calculate Actual Load (kW)

(Load) Power kW = Volts V x √3 x Current I x Power factor Pf

Step 2 – Calculate Required Power Factor Correction (kVAr)

Power Factor Correction kVAr = Power kW (TanΦi – TanΦd)

Φi = Cos-1 Initial Power Factor Pf
Φd = Cos-1 Required Power Factor Pf

Step 3 – Calculate Actual Power Factor Correction [kAVrl

Actual Power Factor Correction Pf = Cos (Tan-1 (TanΦiCorrection kVAr/Power kW ))

Typical Power Factor Correction available in multiples of 25kVAR’s, for further details please Contact Blakley Electrics Technical Department.

At the end of the spreadsheet you will get the calculation of the energy savings for above power factor correction.

  1. Initial Current (Amps)
  2. Original Load (kVA)
  3. Corrected Current (Amps)
  4. Corrected Load (kVA)
  5. Reduction in Current (Amps)
  6. Reduction in Load (kVA)
  7. Annual CO2 Savings ( kg C02)
Software:Power Factor Correction Calculation
Developer:Blakley Electrics
Size:163 kB
Download:Right here | Video Courses | Membership | Download Updates

Power Factor Correction Calculation Spreadsheet

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  1. Tiger
    Jan 26, 2021

    Hi, Share calculation

  2. Bakhshi
    Nov 24, 2020

    Thanks for sharing such kind useful article.

  3. Mayur Tichkule
    Feb 29, 2020

    I am an electrical engineer In Nagpur good information i got from your site.
    thanks a lot.

    Nov 21, 2018

    Hello sir’
    im working as a electrical design engineer

    kindly please clear my doubts

    1) how to find the incomer current rating for APFCR panel ?
    2) how to find the breaker current rating for the 25kvar & 50kvar capacitor ?
    please give the answer??

    and i refer this method its right or wrong??

    Kvar= 1.73*V*I*Sin$ ($ IS INSTESD OF PHASE ANGLE PHI)

    so I= kVAR/1.73*V*SIN$

    SO TERM SIN 90 = 1

  5. Vijayakumar
    Oct 23, 2018

    Sir, please tell me formula for improve power factor.. And which type of problems occur in industry’s when we maintain leading power factor

  6. bismarck vigo
    Oct 19, 2018

    Excelente portal, gracias por las publicaciones.

  7. Md Saleem
    Dec 26, 2017

    Hello Friends,

    I want to learm Electrical Engineering. Where i start because lot of topics in the electrical. Please guide me.
    mail id : [email protected]

  8. bvenu
    Oct 05, 2015

    sir i am working as a technician in private industry, plant is running with load about 900 kva how much capacitance we should need to connect, what kind of problems arise when we are connect capacitance more than required value kindly send the answer to my mail id
    thanking you sir.

    • Domicel
      Feb 05, 2018

      You will spend more capacitors than necessary, I presume thati It is expensive. You will loose money. And if there were a much more capacitance, you will need more KVAr again, but now capacitive.

  9. nirnal kumar
    Aug 07, 2015

    sir, give me formula for improve power factor. how can i get which capacitor will improve power fsctor

  10. eng.saif.
    May 17, 2015

    thanks a lot for sharing of important electrical information .I thinks this side is very helpful for EEE ,MEE,

  11. ghasem razeghi
    Mar 09, 2015

    I am an electrical engineer graduated from s.j.c.e mysore – india .
    good information i got from your site.
    thanks a lot.

  12. Revocatus Mwankemwa
    Jan 10, 2015

    The information I have got are very useful and are of great importance to the problem that I was working on.

  13. Kalim Rahman
    Nov 11, 2014

    How to find out the wire size for connecting to PFI unit?? We have an 800kva substation.

  14. Santanu Mukherjee
    Dec 21, 2013

    Thanks for sharing such nice information

  15. Engr Khan
    Nov 04, 2013

    Thanks for sharing such nice information…. but i want to add some basic formulas
    fromHow to Calculate the Suitable Capacitor Size in Farads & kVAR for Power factor Improvement (Easiest way ever)

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