[ Incidence économique des pertes en ligne sur le choix de la section des câbles ]
Volume 49, Issue 1, June 2020, Pages 120–123
B. Mutela Mutela1, P. Ngonga Sikisama2, and D. Mutund Kalej3
1 Faculté Polytechnique, Unilu, RD Congo
2 Faculté polytechnique, Université de Lubumbashi, RD Congo
3 Faculté Polytechnique, Unilu, RD Congo
Original language: French
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
The choice of a section of power cable is generally the result of examination of two criteria: the criterion of maximum heating at full speed and the criterion of voltage drop compatible with the proper functioning of the controlled devices. But when the rate of use of the cable becomes appreciable, more than a thousand effective hours per year, a new criterion must be considered, it is the criterion of profitability. Under these conditions, the optimum section is obtained by: Section(optimum)=I(3ρr_i p/B)^(1/2) x11mm^2.
Author Keywords: thermal resistors, transient, total cost, current value of the annuity, rated current, steady state, utilization rate.
Volume 49, Issue 1, June 2020, Pages 120–123
B. Mutela Mutela1, P. Ngonga Sikisama2, and D. Mutund Kalej3
1 Faculté Polytechnique, Unilu, RD Congo
2 Faculté polytechnique, Université de Lubumbashi, RD Congo
3 Faculté Polytechnique, Unilu, RD Congo
Original language: French
Copyright © 2020 ISSR Journals. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract
The choice of a section of power cable is generally the result of examination of two criteria: the criterion of maximum heating at full speed and the criterion of voltage drop compatible with the proper functioning of the controlled devices. But when the rate of use of the cable becomes appreciable, more than a thousand effective hours per year, a new criterion must be considered, it is the criterion of profitability. Under these conditions, the optimum section is obtained by: Section(optimum)=I(3ρr_i p/B)^(1/2) x11mm^2.
Author Keywords: thermal resistors, transient, total cost, current value of the annuity, rated current, steady state, utilization rate.
Abstract: (french)
Le choix d’une section de câble de puissance résulte généralement de l’examen de deux critères: le critère d’échauffement maximum en plein régime et le critère de chute de tension compatible avec le bon fonctionnement des appareils commandés. Mais lorsque le taux d’utilisation du câble devient appréciable, supérieur à un millier d’heures efficaces par an, un nouveau critère doit entrer en considération, c’est le critère de rentabilité. Dans ces conditions, la section optimum s’obtient par:Section(optimum)=I(3ρr_i p/B)^(1/2) x11mm^2.
Author Keywords: Résistances thermiques, régime transitoire, coût global, valeur actuelle de l’annuité, courant nominal, régime stationnaire, régime transitoire, taux d’utilisation.
How to Cite this Article
B. Mutela Mutela, P. Ngonga Sikisama, and D. Mutund Kalej, “Economic impact of line losses on the choice of cable section,” International Journal of Innovation and Scientific Research, vol. 49, no. 1, pp. 120–123, June 2020.
