[ Impact thermique de l’injection du courant de foudre dans un sol abritant les postes haute tension: Application au poste HT de Lingwala à Kinshasa en RDC ]
Volume 34, Issue 2, November 2021, Pages 221–229
Mwanamputu Mbwanzo Clément1, Nsongo Timothée2, Pasi Bengi Masata André3, and Lidinga Mobonda Flory4
1 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
2 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
3 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
4 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
Original language: French
Copyright © 2021 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.
To avoid any risk of electrocution and damage to equipment due to an insulation fault or lightning discharge in the HV electrical network consisting mainly of HV transmission stations and lines, all equipment in these energy infrastructures must be earthed through an earth electrode which must maintain its performance over time following the recurrent flows of the shock wave.As this aggressive discharge flows to the ground, the resulting thermal effects can lead to ionization of the soil and reduce the performance of the earth electrode by changing the characteristics of the soil. This publication aims to establish the cause and effect relationship between the thermal effects due to the injected lightning current and the electrical characteristics of the ground through its resistivity.This analysis will allow energy infrastructure designers to take into account these performance changes when injecting lightning current and properly size the earth connections of HV substations.
Author Keywords: Thermal impact, injection, Lightning current, Ground, Job, High tension.
Volume 34, Issue 2, November 2021, Pages 221–229
Mwanamputu Mbwanzo Clément1, Nsongo Timothée2, Pasi Bengi Masata André3, and Lidinga Mobonda Flory4
1 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
2 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
3 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
4 Institut Supérieur des Techniques Appliquées (ISTA), Kinshasa, RD Congo
Original language: French
Copyright © 2021 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
To avoid any risk of electrocution and damage to equipment due to an insulation fault or lightning discharge in the HV electrical network consisting mainly of HV transmission stations and lines, all equipment in these energy infrastructures must be earthed through an earth electrode which must maintain its performance over time following the recurrent flows of the shock wave.As this aggressive discharge flows to the ground, the resulting thermal effects can lead to ionization of the soil and reduce the performance of the earth electrode by changing the characteristics of the soil. This publication aims to establish the cause and effect relationship between the thermal effects due to the injected lightning current and the electrical characteristics of the ground through its resistivity.This analysis will allow energy infrastructure designers to take into account these performance changes when injecting lightning current and properly size the earth connections of HV substations.
Author Keywords: Thermal impact, injection, Lightning current, Ground, Job, High tension.
Abstract: (french)
Pour éviter tout risque d’électrocution et détérioration des matériels dus à un défaut d’isolement ou à une décharge de foudre dans le réseau électrique HT constitué principalement de postes et lignes de transmission HT, tous les équipements de ces infrastructures énergétiques doivent être mis à la terre à travers une prise de terre qui doit conserver ses performances dans le temps à la suite des écoulements récurrents de l’onde de choc.Lors de l’écoulement de cette décharge agressive au sol, les effets thermiques qui en découlent peuvent conduire à l’ionisation du sol et réduire les performances de la prise de terre par la modification des caractéristiques du sol. Cette publication se fixe pour objectif d’établir la relation de cause à effet entre les effets thermiques dus au courant de foudre injecté et les caractéristiques électriques du sol à travers sa résistivité.Cette analyse permettra aux concepteurs des infrastructures énergétiques de pouvoir tenir compte de ces modifications de performances lors de l’injection du courant de foudre et bien dimensionner les prises de terre des postes HT.
Author Keywords: Impact thermique, injection, Courant de foudre, Sol, Poste, Haute tension.
How to Cite this Article
Mwanamputu Mbwanzo Clément, Nsongo Timothée, Pasi Bengi Masata André, and Lidinga Mobonda Flory, “Thermal impact of ligtning current injection in a ground sheltering high voltage stations: Application at the high voltage station of Lingwala in Kinshasa, RDC,” International Journal of Innovation and Applied Studies, vol. 34, no. 2, pp. 221–229, November 2021.
