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Insulator Flashover Probability Investigation Based on Numerical Electric Field Calculation and Random Walk Theory

Abstract Overhead high voltage transmission lines are widely used around the world to deliver power to customers because of their low losses and high transmission capability. Well-coordinated insulation systems are capable of withstanding lightning and switching surge voltages. However, flashover is a serious issue to insulation systems, especially if the insulator is covered by a pollution layer. Many experiments in the laboratory have been conducted to investigate this issue. Since most experiments are time-consuming and costly, good mathematical models could contribute to predicting the insulator flashover performance as well as guide the experiments. This dissertation proposes a new statistical model to calculate the flashover probability of ins... (more)
Created Date 2016
Contributor He, Jiahong (Author) / Gorur, Ravi (Advisor) / Ayyanar, Raja (Committee member) / Holbert, Keith (Committee member) / Karady, George (Committee member) / Arizona State University (Publisher)
Subject Engineering / contamination / flashover probability / insulator dimension / random walk / surface conductivity / water particle
Type Doctoral Dissertation
Extent 133 pages
Language English
Reuse Permissions All Rights Reserved
Note Doctoral Dissertation Engineering 2016
Collaborating Institutions Graduate College / ASU Library
Additional Formats MODS / OAI Dublin Core / RIS

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Description Dissertation/Thesis