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Appl. Sci. 2018, 8(2), 273; doi:10.3390/app8020273

A Heuristic Method for the Reduction of the Outage Rate of High-Voltage Substations Due to Atmospheric Overvoltages

1
Department of Electrical and Computer Engineering, University of Thessaly, 382 21 Volos, Greece
2
Department of Electrical and Electronic Engineering Educators ASPETE—School of Pedagogical and Technological Education, Ν. Ηeraklion, 141 21 Athens, Greece
3
Department of Electrical and Computer Engineering, Democritus University of Thrace, 671 00 Xanthi, Greece
4
Innovative Energy and Information Technologies LTD, j.k. Obelia 1, bl. 118, ent. A, app. 6, Sofia 1387, Bulgaria
*
Author to whom correspondence should be addressed.
Received: 14 January 2018 / Revised: 3 February 2018 / Accepted: 6 February 2018 / Published: 12 February 2018
(This article belongs to the Section Computer Science and Electrical Engineering)
View Full-Text   |   Download PDF [1528 KB, uploaded 12 February 2018]   |  

Abstract

The adequate protection against lightning surges and the limitation of the expected annual failure rate of high-voltage substations are critical issues, in an effort to secure the safety of the equipment and the personnel. Various factors affect the lightning performance of the substations, determining the developed lightning surges and the expected outage rate, i.e., the grounding resistance, the length of the underground cable between the connected overhead transmission line and the power transformer, and the installation position of the arresters. In the current work, a heuristic method is developed to adjust different parameters of high-voltage substations that upgrade their lightning performance. The proposed methodology can be useful to the studies of substations’ designers and engineers, contributing effectively in the reduction or/and elimination of lightning failures. View Full-Text
Keywords: substations; lightning; arresters; grounding resistance substations; lightning; arresters; grounding resistance
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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. (CC BY 4.0).

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MDPI and ACS Style

Christodoulou, C.A.; Vita, V.; Voglitsis, D.; Milushev, G.; Ekonomou, L. A Heuristic Method for the Reduction of the Outage Rate of High-Voltage Substations Due to Atmospheric Overvoltages. Appl. Sci. 2018, 8, 273.

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