Title :
Analysis of losses in cables and transformers under power quality related issues
Author :
Tofoli, Fernando L. ; Morais, Aniel S. ; Gallo, Carlos A. ; Sanhueza, Sérgio M R ; De Oliveira, Aloísio
Author_Institution :
Dept. of Electr. Eng., Fed. Univ. of Uberlandia, Brazil
Abstract :
This paper focuses on I2R losses under nonsinusoidal conditions, mainly in cables and transformers. For this purpose, a mathematical development that takes in account the presence of harmonic components in the I2R losses calculation will be presented, so that the effects of the harmonic distortion in the power system components and consequently the impact on the power factor can be analyzed. Based on this study, a factor that evaluates the power quality performance in low voltage networks is presented. This factor is directly associated to the economical viability, once that it points when the losses minimization is interesting according to the cost/benefit ratio.
Keywords :
cost-benefit analysis; eddy current losses; harmonic distortion; power cables; power supply quality; power system harmonics; power transformers; I2R loss; cable; cost-benefit ratio; economical viability; harmonic component; harmonic distortion; power factor; power quality performance; power system component; transformer; voltage network; Cables; Harmonic analysis; Harmonic distortion; Low voltage; Power quality; Power system analysis computing; Power system economics; Power system harmonics; Reactive power; Transformers;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 2004. APEC '04. Nineteenth Annual IEEE
Print_ISBN :
0-7803-8269-2
DOI :
10.1109/APEC.2004.1296066
