ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN

ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN

The results of the analysis of the influence of operating conditions and design of high-voltage bushings on the values of dielectric loss tangent of high-voltage bushing basic insulation. For analysis a model of two-factor cross-sectional dispersion analysis, which allows to simultaneously evaluate...

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Date:2019
Main Authors: Shutenko, O. V., Zagaynova, A. A., Serdyukova, G. N.
Format: Article
Language:English
Ukrainian
Published: National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2019
Subjects:
high-voltage bushing
insulation
two-factor cross-sectional dispersion analysis
insulation indicators
dielectric loss tangent
621.314
Online Access:http://eie.khpi.edu.ua/article/view/2074-272X.2019.1.10
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Journal Title:Electrical Engineering & Electromechanics

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Electrical Engineering & Electromechanics
id eiekhpieduua-article-156833
record_format ojs
institution Electrical Engineering & Electromechanics
baseUrl_str
datestamp_date 2019-02-17T17:29:46Z
collection OJS
language English
Ukrainian
topic high-voltage bushing
insulation
two-factor cross-sectional dispersion analysis
insulation indicators
dielectric loss tangent
621.314
spellingShingle high-voltage bushing
insulation
two-factor cross-sectional dispersion analysis
insulation indicators
dielectric loss tangent
621.314
Shutenko, O. V.
Zagaynova, A. A.
Serdyukova, G. N.
ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN
topic_facet high-voltage bushing
insulation
two-factor cross-sectional dispersion analysis
insulation indicators
dielectric loss tangent
621.314
высоковольтный ввод
изоляция
двухфакторный перекрестный дисперсионный анализ
показатели изоляции
тангенс угла диэлектрических потерь
621.314
format Article
author Shutenko, O. V.
Zagaynova, A. A.
Serdyukova, G. N.
author_facet Shutenko, O. V.
Zagaynova, A. A.
Serdyukova, G. N.
author_sort Shutenko, O. V.
title ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN
title_short ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN
title_full ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN
title_fullStr ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN
title_full_unstemmed ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN
title_sort analysis of operating conditions and modes influence on technical state of main insulation of high-voltage bushings of different design
title_alt АНАЛИЗ ВЛИЯНИЯ УСЛОВИЙ И РЕЖИМОВ ЭКСПЛУАТАЦИИ НА ТЕХНИЧЕСКОЕ СОСТОЯНИЕ ОСНОВНОЙ ИЗОЛЯЦИИ ВЫСОКОВОЛЬТНЫХ ВВОДОВ РАЗЛИЧНОЙ КОНСТРУКЦИИ
description The results of the analysis of the influence of operating conditions and design of high-voltage bushings on the values of dielectric loss tangent of high-voltage bushing basic insulation. For analysis a model of two-factor cross-sectional dispersion analysis, which allows to simultaneously evaluate the influence of two factors and evaluate the effect of their interaction is used. In the model used, it is assumed that the effects of changes in the levels of factors are non-additive, that is, the difference in mathematical expectations between any two levels of one factor is not the same for any levels of the other. Testing the hypothesis of the significance of the influence of factors and their interactions is performed using the Fisher criterion. This method was implemented in the form of the author’ program «two-factor  dispersion analysis». The results of periodic monitoring of the state of high-voltage bushings of 110, 220 and 330 kV with different types of insulation were used as initial data. Using the model of two-factor cross-sectional dispersion analysis, it was found that the aging intensity of the main insulation of bushings is influenced by both the operating conditions and the design features of the bushings. Maximum permissible values of diagnostic indicators of high-voltage bushings should be normalized taking into account such factors as nominal voltage, type of protection and type of insulation, load of bushings and the composition of consumers. Since, based on the analysis performed, it was established that these factors have a significant impact on the values of diagnostic indicators of insulation of bushings. According to the results of the analysis performed, it was established that such factors as the type of bushing and phase do not have a significant effect on the change in the values of diagnostic indicators of high-voltage bushings, and, therefore, they can be ignored when determining the maximum permissible values of the indicators.
publisher National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
publishDate 2019
url http://eie.khpi.edu.ua/article/view/2074-272X.2019.1.10
work_keys_str_mv AT shutenkoov analysisofoperatingconditionsandmodesinfluenceontechnicalstateofmaininsulationofhighvoltagebushingsofdifferentdesign
AT zagaynovaaa analysisofoperatingconditionsandmodesinfluenceontechnicalstateofmaininsulationofhighvoltagebushingsofdifferentdesign
AT serdyukovagn analysisofoperatingconditionsandmodesinfluenceontechnicalstateofmaininsulationofhighvoltagebushingsofdifferentdesign
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AT zagaynovaaa analizvliâniâuslovijirežimovékspluataciinatehničeskoesostoânieosnovnojizolâciivysokovolʹtnyhvvodovrazličnojkonstrukcii
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first_indexed 2025-07-17T11:47:30Z
last_indexed 2025-07-17T11:47:30Z
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spelling eiekhpieduua-article-1568332019-02-17T17:29:46Z ANALYSIS OF OPERATING CONDITIONS AND MODES INFLUENCE ON TECHNICAL STATE OF MAIN INSULATION OF HIGH-VOLTAGE BUSHINGS OF DIFFERENT DESIGN АНАЛИЗ ВЛИЯНИЯ УСЛОВИЙ И РЕЖИМОВ ЭКСПЛУАТАЦИИ НА ТЕХНИЧЕСКОЕ СОСТОЯНИЕ ОСНОВНОЙ ИЗОЛЯЦИИ ВЫСОКОВОЛЬТНЫХ ВВОДОВ РАЗЛИЧНОЙ КОНСТРУКЦИИ Shutenko, O. V. Zagaynova, A. A. Serdyukova, G. N. high-voltage bushing insulation two-factor cross-sectional dispersion analysis insulation indicators dielectric loss tangent 621.314 высоковольтный ввод изоляция двухфакторный перекрестный дисперсионный анализ показатели изоляции тангенс угла диэлектрических потерь 621.314 The results of the analysis of the influence of operating conditions and design of high-voltage bushings on the values of dielectric loss tangent of high-voltage bushing basic insulation. For analysis a model of two-factor cross-sectional dispersion analysis, which allows to simultaneously evaluate the influence of two factors and evaluate the effect of their interaction is used. In the model used, it is assumed that the effects of changes in the levels of factors are non-additive, that is, the difference in mathematical expectations between any two levels of one factor is not the same for any levels of the other. Testing the hypothesis of the significance of the influence of factors and their interactions is performed using the Fisher criterion. This method was implemented in the form of the author’ program «two-factor  dispersion analysis». The results of periodic monitoring of the state of high-voltage bushings of 110, 220 and 330 kV with different types of insulation were used as initial data. Using the model of two-factor cross-sectional dispersion analysis, it was found that the aging intensity of the main insulation of bushings is influenced by both the operating conditions and the design features of the bushings. Maximum permissible values of diagnostic indicators of high-voltage bushings should be normalized taking into account such factors as nominal voltage, type of protection and type of insulation, load of bushings and the composition of consumers. Since, based on the analysis performed, it was established that these factors have a significant impact on the values of diagnostic indicators of insulation of bushings. According to the results of the analysis performed, it was established that such factors as the type of bushing and phase do not have a significant effect on the change in the values of diagnostic indicators of high-voltage bushings, and, therefore, they can be ignored when determining the maximum permissible values of the indicators. Целью статьи является анализ влияния условий, режимов эксплуатации и конструкции высоковольтных вводов на значения тангенса угла диэлектрических потерь основной изоляции конденсаторного типа высоковольтных вводов. Для анализа используется модель двухфакторного перекрестного дисперсионного анализа, которая позволяет одновременно выполнить оценку влияния двух факторов и оценить эффект их взаимодействия. В используемой модели предполагается неаддитивность эффектов изменения уровней факторов, т.е разность математических ожиданий между любыми двумя уровнями одного фактора не одинакова при любых уровнях другого. Проверка гипотезы о значимости влияния факторов и их взаимодействий выполняется с помощью критерия Фишера. Данный метод был реализован в виде авторской программы «двухфакторный дисперсионный анализ». В качестве исходных данных были использованы результаты периодического контроля состояния высоковольтных вводов напряжением 110, 220 и 330 кВ с изоляцией разного типа. Используя модель двухфакторного перекрестного дисперсионного анализа, установлено, что на интенсивность старения основной изоляции вводов оказывают влияние как условия эксплуатации, так и особенности конструктивного исполнения вводов. Новые положения, по сравнению с известными решениями, состоят в том, что предельно допустимые значения диагностических признаков высоковольтных вводов следует нормировать с учетом таких факторов, как номинальное напряжение, тип защиты и тип изоляции, загрузка вводов и состав потребителей. Полученные результаты могут быть алгоритмически реализованы в виде отдельного модуля информационно-аналитической системы (ИАС) для диагностики состояния высоковольтного маслонаполненного оборудования. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2019-02-17 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2019.1.10 10.20998/2074-272X.2019.1.10 Electrical Engineering & Electromechanics; No. 1 (2019); 57-66 Электротехника и Электромеханика; № 1 (2019); 57-66 Електротехніка і Електромеханіка; № 1 (2019); 57-66 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/2074-272X.2019.1.10/156178 http://eie.khpi.edu.ua/article/view/2074-272X.2019.1.10/156179 Copyright (c) 2019 O. V. Shutenko, A. A. Zagaynova, G. N. Serdyukova https://creativecommons.org/licenses/by-nc/4.0

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