Volume 7, Issue 3 (September 2011)                   IJEEE 2011, 7(3): 190-196 | Back to browse issues page

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Tavakoli A, Gholami A. Mitigation of Transient Overvoltages Generated Due to Switching Operations and Lightning in Gas-insulated Substation (GIS) Without Extra Limiter. IJEEE 2011; 7 (3) :190-196
URL: http://ijeee.iust.ac.ir/article-1-334-en.html
Abstract:   (7268 Views)
Gas-insulated substations (GIS) have different specifications in proportion to air-insulated substations. Transformer failures related to lightning and switching are often reported in the gas insulated substation (GIS). This problem is the voltage magnifications due to reflections of switching and lightning surges at various junctions within the GIS. thereby overvoltages in GIS are more important than air-insulated substation. There are methods to suppress the stresses created by lightning and switching. However, these methods are suitable before installing the substation and during the substation design period. This paper presents feasible methods for mitigation of the overvoltage magnitude. The advantages of the proposed methods are their simplicity and low cost for implantation along with producing minimal changes in the installed GIS.
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Type of Study: Research Paper | Subject: High Voltage Engineering
Received: 2010/10/29 | Revised: 2011/12/24 | Accepted: 2011/09/17

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© 2022 by the authors. Licensee IUST, Tehran, Iran. This is an open access journal distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) license.