Posts Tagged ‘power factor correction’

Is Power Factor Correction that important?

February 14th, 2013 | 3 Comments | Posted in Power quality
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The importance of Power Factor Correction

There is a dynamic shift in our economy pertaining to the emphasis on reviewing energy usage. There is increased impetus towards optimizing the usage and overall efficiency of electrical systems. The message is simple; use is it effectively, rather than using it less.

This is where the discussion of power factor and its bed rock role in any electrical system comes to play. Generically speaking, the power factor is defined as a measure that shall monitor the route of electrical supply via the energy utility company. The higher inductive components a device have, usually the lower its power factor. In mathematical terms power factor equation could be written as follows:

P.F = cos⁡θ = KW/KVA

In the above equation KW is the actual load power and KVA is the apparent power.


Missed something? Here are June main subjects

July 10th, 2012 | 1 Comment | Posted in Last month main subjects
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First, let us announce that the PowerFacAging calculator is now on-line!
You can use it just right here.

Concerning our last newsletter “special edition”, we have shared a preliminary review of the new MCC drawer solutions which can improve operator safety. We were glad to notice your interest and we received a lot of feedbacks. We summed up all of these feedbacks and we’d like to know if you agree or not.

Then, as usual, we have picked three random topics with no answer in the forum so that you can help the members to solve their issues.


Missed something? Here are April main subjects

May 14th, 2012 | Make a comment | Posted in Last month main subjects

In our last two newsletters, we told you about our new project: the PowerFacAging, a tool focused on energy savings. Unfortunately, this PFC calculator didn’t seem to raise your interest. That’s the reason why last month’s debate was about your opinion on its usefulness. Another point: if you’ve been too busy last month to hang around the forum, don’t panic! We selected 4 topics with no answers (yet!).


6/8 – Electrical equipment: improve power factor

January 20th, 2010 | 14 Comments | Posted in Power quality
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How to improve power factor ?

Power factor has been defined earlier as a function of active and apparent power. For sinusoidal (undistorted) voltage and current, a vector representation is also possible and helpful.
For most electrical loads like motors, the current I is lagging behind the voltage V by an angle phi.
Ia is called the “active” component of the current.
Ir is called the “reactive” component of the current.

Voltage and current vectors

Voltage and current vectors


5/8 – Electrical equipment: power harmonics, power factor

December 12th, 2009 | 18 Comments | Posted in Power quality
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The benefits of Power Factor Correction and Power Harmonic mitigation

6 Benefits are described here:

  • Reduce electricity bill
  • Reduce power losses
  • Reduce cable size
  • Comply with power harmonic emission limits requested by Utilities
  • Improve process quality
  • Improve business performance
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