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
Posts Tagged ‘electrical installation’
electrical installation harmonic problems part 1
August 24th, 2009 | 5 Comments | Posted in Power qualityTags: electrical installation, harmonic problems, power factor correction
LV surge protection installation
July 20th, 2009 | 15 Comments | Posted in Electrical distributionTags: electrical installation, lightning, lightning protection, surge protection, surge protector
It’s Good to have in mind practical aspects: case of a low voltage switchboard To achieve the effective installation of the surge protection, the surge arrester’s connections to the grid should be as short as possible. Any cable crossed by a lightning impulse current has a significant voltage to be added to the Surge Protection Device (SPD) residual voltage.
nice picture from http://www.lafoudre.com/
Power losses reduction in electrical distribution
June 29th, 2009 | 40 Comments | Posted in Electrical distribution, Electrical softwareTags: electrical installation, Electrical software, power losses
Reducing power losses by optimizing equipment locations
Do you realize that power losses in a electrical installation could represent up to 7 % of the electrical consumption ?
LV cables and transformers are the most contributors to these operating losses, around 95 % as shown here below
Effective surge protection installation into an electrical switchboard?
June 19th, 2009 | 1 Comment | Posted in Panel BuildingTags: electrical installation, electrical switchboard, lightning, lightning protection, surge protection, surge protector
Many Electrical Contractors and Panel builders ask this question.
To achieve the effective installation of the surge protection, the surge arrester’s connections to the grid should be as short as possible. Any cable crossed by a lightning impulse current has a significant voltage to be added to the Surge Protection Device (SPD) residual voltage.
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LV: Coordination between 2 Surge protection devices (SPD)
June 18th, 2009 | 14 Comments | Posted in Electrical distributionTags: electrical installation, lightning, lightning protection, surge protection, surge protector
Lightning & Surge protection: Advice to ensure a guaranteed lightning protection for a low voltage electrical installation
lightning
