Title :
Overview on transient overvoltages and insulation design for a high voltage transmission system
Author :
Sones, William ; Sze Mei Wong
Author_Institution :
T&D Tech. Services, Entergy Services Inc., Jackson, MS, USA
Abstract :
This paper presents a high level overview of overvoltages and insulation performance and offers a brief overview of insulator technology and development. Frequent lightning and switching, an ageing system, and contaminated insulators are some of the factors that impact transmission line performance and reliability. A lightning case study is included in this paper with results to illustrate the importance of insulation coordination to ensure the reliable operation of Entergy´s transmission system.
Keywords :
ageing; high-voltage engineering; insulator contamination; lightning protection; overvoltage protection; power cable insulation; power transmission lines; power transmission reliability; switching; Entergy transmission system; ageing system; contaminated insulator; frequent lightning; frequent switching; high voltage transmission system; insulation performance; transient overvoltage; transmission line reliability; Insulators; Lightning; Poles and towers; Polymers; Power transmission lines; Surges; Switches;
Conference_Titel :
High Voltage Engineering and Application (ICHVE), 2010 International Conference on
Conference_Location :
New Orleans, LA
Print_ISBN :
978-1-4244-8283-2
DOI :
10.1109/ICHVE.2010.5640875
