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Power Factor Correction


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#1 AB2005

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Posted 22 October 2006 - 03:32 AM

Dear All,

We have a large number of Fluorescent and mercury lamps in our plant. I want to connect the PFC capacitor at each lamp for reducing the line losses. Please check my calculations for single phase capacitor and guide to me if you found any mistake.

QC=Px(tanΦ1-tanΦ2)

QC=VxWxC

C=QC/VxW

For example, Fluorescent lamp = 40W, 220V, 50HZ and cosΦ 0.45. I want to improve the power factor at 0.96. So,

QC=40x(1.98-0.29)

QC=67.6VAR

C=67.6/220x220x(2x3.14x50)

C=4.4uf

Is it correct?





"Don't assume any thing, always check/ask and clear yourself".

#2 AB2005

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Posted 02 November 2006 - 02:32 AM

Any one can provide me any link, or any help? I am confused what to do.
"Don't assume any thing, always check/ask and clear yourself".




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