Volume 11, Issue 2 (7-2021)                   JEM 2021, 11(2): 32-41 | Back to browse issues page


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Khodsouz M. Sensitivity Assessment of Lightning-Protection Devices' Aging Effect on Distribution Substation Insulation. JEM. 2021; 11 (2) :32-41
URL: http://energy.kashanu.ac.ir/article-1-1339-en.html
University of Science and Technology of Mazandaran
Abstract:   (2652 Views)
 Insufficient electrical endurance of equipment and insulation failure against overvoltage are one of the most effective reasons for the failure of the power lines. Lightening, switching, or other disruptive parameters can cause line outage or distribution substation failure. There are different devices used to improve the safety, reliability, and power quality of the system. Surge arresters are one of the insulation protection subsystems used against surge and switching overvoltages. In this paper, the effects of surge arrester performance have been investigated on the insulation system of distribution substation. The study has been done under normal and also transient conditions due to lightning overvoltage. The effects of failure rate, production quality, voltage stress, temperature and surge arrester permutation have been evaluated on surge arrester performances. The influence of surge arrester aging, as the most influential factor on the surge arrester performance, has been investigated as one of the factors involved in the present study. Obtained results have verified the great impact of surge arrester aging effect on the reliability of protection system.
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Type of Study: Research | Subject: Electrical Engineering
Received: 2019/07/22 | Revised: 2021/10/30 | Accepted: 2020/06/20 | Published: 2021/07/1

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