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Associate

Join Date: Jan 2007
Location: South Africa
Posts: 43

# Power Factor Correction

02/14/2007 1:01 PM

Hi I'm still confusing because I'd like to calculate the saving money:in fact,my company has a 50KVA power supply,a power factor of 0.86 and after one year,my company needs to use 80KVA.my question is how much should I save if I want to improve my new power factor to 0.86.(NB:the cost per 1KVA is 30\$).

kind regards

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Anonymous Poster
#1

### Re: Power Factor Correction

02/15/2007 12:11 AM

Thank you

Kemsindia@gmail.com

Anonymous Poster
#3

### Re: Power Factor Correction

02/15/2007 2:10 AM

Dear Sir,

We have high speed real time automatic power factor correction system

Paras Patel

Anonymous Poster
#2

### Re: Power Factor Correction

02/15/2007 2:07 AM

dear sir,

we have high speed real time automatic power factor correction system,

this system is very smooth & transient free

if you are interested pl. contact in india on 09377542899 or mail your requirement on automac.paras@gmail .com

Paras Patel

Member

Join Date: Feb 2007
Location: India
Posts: 6
#4

### Re: Power Factor Correction

02/15/2007 2:29 AM

POWER FACTOR IMPROVEMENT 80kVA

The present average power factor = 0.86

The present Recorded Maximum Demand = 80KVA

Therefore the average max. load = 80x0.86 =69KW

Recommended PF = 1.00

RMD at improved PF = 69/1.00 =69KVA

Reduction in KVA = 80-69 =11.2KVA

Annual Saving due to reduction in RMD = 11x\$30 x 12 =\$3,000

Additional KVAr requirement = KW x (Tan f1-Tan f2)

= 69(0.593-0.000)

= 41KVAr

POWER FACTOR IMPROVEMENT 50kVA

The present average power factor = 0.86

The present Recorded Maximum Demand = 50KVA

Therefore the average max. load = 50x0.86 = 43KW

Recommended PF = 1.00

RMD at improved PF = 43/1.00 = 43KVA

Reduction in KVA = 50-43 = 7.0KVA

Annual Saving due to reduction in RMD = 7x\$30 x 12 = \$2,000

Additional KVAr requirement = KW x (Tan f1-Tan f2)

= 43x(0.593-0.000)

= 26KVAr

Associate

Join Date: Jan 2007
Location: South Africa
Posts: 43
#5

### Re: Power Factor Correction

02/15/2007 6:37 AM

Happy!! thank you verry much

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Anonymous Poster
#6

### Re: Power Factor Correction

02/15/2007 7:13 AM

Where do you come up with the angles f1 and f2.

I know they are the angle of the power factor but how does that relate to the power factor of .86?

Participant

Join Date: Feb 2007
Posts: 1
#7

### Re: Power Factor Correction

02/15/2007 7:17 AM

I assume a power factor of 1.00 has an angle of zero?

a Power facotor of .50 would be ????

Anonymous Poster
#8

### Re: Power Factor Correction

02/28/2007 8:20 AM

Use your calculator or look up tables to find the Cosine of 0.5!