A new approach in modeling AC flashover voltage for polluted insulator

Contamination-driven insulator failure is a problem that incessantly plagues distribution system. It erodes power quality and diminishes system reliability. Research on insulator pollution is directed primarily to understand the physics of the growth of discharge and to develop a mathematical model,...

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Main Authors: Jaafar S., Ahmad A.S., Ghosh P.S., Aljunid S.A.K.
Other Authors: 57193688342
Format: Conference paper
Published: 2023
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spelling my.uniten.dspace-299022023-12-28T16:58:08Z A new approach in modeling AC flashover voltage for polluted insulator Jaafar S. Ahmad A.S. Ghosh P.S. Aljunid S.A.K. 57193688342 7202040740 55427760300 37113819900 Electric currents Electric potential Electric resistance Flashover Mathematical models Polluted insulators Electric insulators Contamination-driven insulator failure is a problem that incessantly plagues distribution system. It erodes power quality and diminishes system reliability. Research on insulator pollution is directed primarily to understand the physics of the growth of discharge and to develop a mathematical model, which can predict the critical flashover voltage and current. In this paper a new ac model for flashover voltage has been proposed taking into consideration "Equivalent Salt Deposit Density (ESDD)" in place of "Resistance per unit Length". The salient feature of the proposed model is that it takes into account the selection of an appropriate value of the proposed "Pollution Severity Factor" which varies with the "salt present in the pollution layer" and "width of the pollution channel". The proposed model has been validated against experimental results taken from an experiment carried out on a flat plate model. It has been observed that the modeled results closely follow the experimental curves and can predict rms value of critical flashover voltage with a mean absolute error (MAE) of < 5.00%. The effectiveness of the model was also verified by comparing the modeled results against the experimental and theoretical results of other researchers and good agreement has been obtained. Final 2023-12-28T08:58:08Z 2023-12-28T08:58:08Z 2002 Conference paper 2-s2.0-0036438686 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0036438686&partnerID=40&md5=644adc977f131493ec098dfb7a28728f https://irepository.uniten.edu.my/handle/123456789/29902 558 561 Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
topic Electric currents
Electric potential
Electric resistance
Flashover
Mathematical models
Polluted insulators
Electric insulators
spellingShingle Electric currents
Electric potential
Electric resistance
Flashover
Mathematical models
Polluted insulators
Electric insulators
Jaafar S.
Ahmad A.S.
Ghosh P.S.
Aljunid S.A.K.
A new approach in modeling AC flashover voltage for polluted insulator
description Contamination-driven insulator failure is a problem that incessantly plagues distribution system. It erodes power quality and diminishes system reliability. Research on insulator pollution is directed primarily to understand the physics of the growth of discharge and to develop a mathematical model, which can predict the critical flashover voltage and current. In this paper a new ac model for flashover voltage has been proposed taking into consideration "Equivalent Salt Deposit Density (ESDD)" in place of "Resistance per unit Length". The salient feature of the proposed model is that it takes into account the selection of an appropriate value of the proposed "Pollution Severity Factor" which varies with the "salt present in the pollution layer" and "width of the pollution channel". The proposed model has been validated against experimental results taken from an experiment carried out on a flat plate model. It has been observed that the modeled results closely follow the experimental curves and can predict rms value of critical flashover voltage with a mean absolute error (MAE) of < 5.00%. The effectiveness of the model was also verified by comparing the modeled results against the experimental and theoretical results of other researchers and good agreement has been obtained.
author2 57193688342
author_facet 57193688342
Jaafar S.
Ahmad A.S.
Ghosh P.S.
Aljunid S.A.K.
format Conference paper
author Jaafar S.
Ahmad A.S.
Ghosh P.S.
Aljunid S.A.K.
author_sort Jaafar S.
title A new approach in modeling AC flashover voltage for polluted insulator
title_short A new approach in modeling AC flashover voltage for polluted insulator
title_full A new approach in modeling AC flashover voltage for polluted insulator
title_fullStr A new approach in modeling AC flashover voltage for polluted insulator
title_full_unstemmed A new approach in modeling AC flashover voltage for polluted insulator
title_sort new approach in modeling ac flashover voltage for polluted insulator
publishDate 2023
_version_ 1806428137378021376
score 13.209306