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!).
Posts Tagged ‘power factor correction’
Missed something? Here are April main subjects
May 14th, 2012 | Make a comment | Posted in Last month main subjectsTags: power factor correction
6/8 – Electrical equipment: improve power factor
January 20th, 2010 | 12 Comments | Posted in Power qualityTags: capacitor bank, power factor, power factor correction, reactive power
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
5/8 – Electrical equipment: power harmonics, power factor
December 12th, 2009 | 15 Comments | Posted in Power qualityTags: electrical equipment, power factor, power factor correction, power harmonics
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
(more…)
4/8 – Electrical equipment: power harmonics, power factor
November 30th, 2009 | 10 Comments | Posted in Power qualityTags: active power, electrical equipment, power factor, power factor correction, power harmonics
How Power Factor and Harmonics relate to Energy Efficiency?
In an AC distribution system, the maximum active power is transmitted to a load when voltage and current are undistorted and in phase.
electrical installation harmonic problems part 1
August 24th, 2009 | 5 Comments | Posted in Power qualityTags: electrical installation, harmonic problems, power factor correction
Examples of harmonics-related malfunctions in electrical installations : case of “Overloads of power factor correction capacitors”
- United Parcel Service, Louisville, Kentucky airport: several capacitor banks had to be replaced in 2007
