DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE

DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE

Features of the data processing procedures of multiple measurements of the dielectric loss tangent of the high-voltage insulation, which are based on the comparison method, were considered. Three procedures were compared: the one procedure uses an assignment of a particular standard object for compa...

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Date:2016
Main Authors: Beliaev, V. K., Panenko, H. N.
Format: Article
Language:English
Russian
Published: National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2016
Subjects:
high voltage insulation
diagnostics
data processing procedure
processing procedure error
dielectric loss tangent
current transformer
621.314
Online Access:http://eie.khpi.edu.ua/article/view/2074-272X.2016.5.06
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Journal Title:Electrical Engineering & Electromechanics

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Electrical Engineering & Electromechanics
id eiekhpieduua-article-81023
record_format ojs
institution Electrical Engineering & Electromechanics
baseUrl_str
datestamp_date 2017-08-21T18:31:00Z
collection OJS
language English
Russian
topic high voltage insulation
diagnostics
data processing procedure
processing procedure error
dielectric loss tangent
current transformer
621.314
spellingShingle high voltage insulation
diagnostics
data processing procedure
processing procedure error
dielectric loss tangent
current transformer
621.314
Beliaev, V. K.
Panenko, H. N.
DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
topic_facet high voltage insulation
diagnostics
data processing procedure
processing procedure error
dielectric loss tangent
current transformer
621.314
высоковольтная изоляция
диагностика
методика обработки
погрешность
тангенс угла диэлектрических потерь
трансформатор тока
621.314
діагностика
високовольтна ізоляція
методика обробки
похибка
тангенс кута діелектричних втрат
трансформатор струму
621.314
format Article
author Beliaev, V. K.
Panenko, H. N.
author_facet Beliaev, V. K.
Panenko, H. N.
author_sort Beliaev, V. K.
title DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
title_short DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
title_full DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
title_fullStr DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
title_full_unstemmed DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
title_sort determination of insulation parameters of current transformers at multiple measurements in monitoring systems under working voltage
title_alt ОПРЕДЕЛЕНИЕ ДИЭЛЕКТРИЧЕСКИХ ПАРАМЕТРОВ ИЗОЛЯЦИИ ТРАНСФОРМАТОРОВ ТОКА ПРИ МНОЖЕСТВЕННЫХ ИЗМЕРЕНИЯХ В СИСТЕМАХ КОНТРОЛЯ ПОД РАБОЧИМ НАПРЯЖЕНИЕМ
ОПРЕДЕЛЕНИЕ ДИЭЛЕКТРИЧЕСКИХ ПАРАМЕТРОВ ИЗОЛЯЦИИ ТРАНСФОРМАТОРОВ ТОКА ПРИ МНОЖЕСТВЕННЫХ ИЗМЕРЕНИЯХ В СИСТЕМАХ КОНТРОЛЯ ПОД РАБОЧИМ НАПРЯЖЕНИЕМ
description Features of the data processing procedures of multiple measurements of the dielectric loss tangent of the high-voltage insulation, which are based on the comparison method, were considered. Three procedures were compared: the one procedure uses an assignment of a particular standard object for comparison, and two procedures don't use assignments of the special standard objects. Expressions of methodical errors of studied procedures were obtained. Analysis and calculations, which use the obtained expressions were made. Evaluations showed that an influence of a change of the tangent of dielectric loss of one from the monitoring objects on results of estimation of the tangents of other monitoring objects is the distinctive feature of the procedures without assignment of the standard object. Errors of these procedures more than errors of the traditional procedure, with assignment of the standard object. The study demonstrated that procedures without assignment of standard objects lead to difficultly predictable methodological errors, which hinder to estimate the actual value of the loss tangent and to estimate outcomes of the monitoring, by means comparing with allowable values. Moreover, the decrease of estimations of loss tangents of all objects, as a result of occurrence of at least one the object with strongly bad parameters, hides occurrence of other unsuccessful objects with smaller deviations and makes difficult recognition of such deviations at early stages. Improvements in processing techniques which reduce earlier specified errors and reduce the amount of measurements are proposed. The study results are useful in monitoring and diagnostic of basic insulation of current transformers or high-voltage bushings.
publisher National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
publishDate 2016
url http://eie.khpi.edu.ua/article/view/2074-272X.2016.5.06
work_keys_str_mv AT beliaevvk determinationofinsulationparametersofcurrenttransformersatmultiplemeasurementsinmonitoringsystemsunderworkingvoltage
AT panenkohn determinationofinsulationparametersofcurrenttransformersatmultiplemeasurementsinmonitoringsystemsunderworkingvoltage
AT beliaevvk opredeleniediélektričeskihparametrovizolâciitransformatorovtokaprimnožestvennyhizmereniâhvsistemahkontrolâpodrabočimnaprâženiem
AT panenkohn opredeleniediélektričeskihparametrovizolâciitransformatorovtokaprimnožestvennyhizmereniâhvsistemahkontrolâpodrabočimnaprâženiem
first_indexed 2025-07-17T11:46:26Z
last_indexed 2025-07-17T11:46:26Z
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spelling eiekhpieduua-article-810232017-08-21T18:31:00Z DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE ОПРЕДЕЛЕНИЕ ДИЭЛЕКТРИЧЕСКИХ ПАРАМЕТРОВ ИЗОЛЯЦИИ ТРАНСФОРМАТОРОВ ТОКА ПРИ МНОЖЕСТВЕННЫХ ИЗМЕРЕНИЯХ В СИСТЕМАХ КОНТРОЛЯ ПОД РАБОЧИМ НАПРЯЖЕНИЕМ ОПРЕДЕЛЕНИЕ ДИЭЛЕКТРИЧЕСКИХ ПАРАМЕТРОВ ИЗОЛЯЦИИ ТРАНСФОРМАТОРОВ ТОКА ПРИ МНОЖЕСТВЕННЫХ ИЗМЕРЕНИЯХ В СИСТЕМАХ КОНТРОЛЯ ПОД РАБОЧИМ НАПРЯЖЕНИЕМ Beliaev, V. K. Panenko, H. N. high voltage insulation diagnostics data processing procedure processing procedure error dielectric loss tangent current transformer 621.314 высоковольтная изоляция диагностика методика обработки погрешность тангенс угла диэлектрических потерь трансформатор тока 621.314 діагностика високовольтна ізоляція методика обробки похибка тангенс кута діелектричних втрат трансформатор струму 621.314 Features of the data processing procedures of multiple measurements of the dielectric loss tangent of the high-voltage insulation, which are based on the comparison method, were considered. Three procedures were compared: the one procedure uses an assignment of a particular standard object for comparison, and two procedures don't use assignments of the special standard objects. Expressions of methodical errors of studied procedures were obtained. Analysis and calculations, which use the obtained expressions were made. Evaluations showed that an influence of a change of the tangent of dielectric loss of one from the monitoring objects on results of estimation of the tangents of other monitoring objects is the distinctive feature of the procedures without assignment of the standard object. Errors of these procedures more than errors of the traditional procedure, with assignment of the standard object. The study demonstrated that procedures without assignment of standard objects lead to difficultly predictable methodological errors, which hinder to estimate the actual value of the loss tangent and to estimate outcomes of the monitoring, by means comparing with allowable values. Moreover, the decrease of estimations of loss tangents of all objects, as a result of occurrence of at least one the object with strongly bad parameters, hides occurrence of other unsuccessful objects with smaller deviations and makes difficult recognition of such deviations at early stages. Improvements in processing techniques which reduce earlier specified errors and reduce the amount of measurements are proposed. The study results are useful in monitoring and diagnostic of basic insulation of current transformers or high-voltage bushings. Рассмотрены особенности методик обработки результатов множественных измерений тангенса угла диэлектрических потерь высоковольтной изоляции, основанных на методе сравнения. Проанализированы известные методики определения тангенса потерь с выделением отдельного эталонного объекта и без выделения такого эталона. Получены выражения для определения методических погрешностей. Проведено сравнение и показано, что применение методик обработки без выделения отдельного эталонного объекта может приводить к существенным сложностям в оценке результатов контроля изоляции. Предложены усовершенствования методик обработки, уменьшающие указанные погрешности методик и трудоемкость измерений. Розглянуто особливості методик обробки результатів множинних вимірів тангенсу діелектричних втрат високовольтної ізоляції, заснованих на методі порівняння. Проаналізовано відомі методики визначення тангенсу втрат з призначенням окремого еталонного об'єкта і без призначення такого еталона. Отримано вирази для визначення методичних похибок. Проведено порівняння і показано, що застосування методик обробки без призначення окремого еталонного об'єкта може призводити до суттєвих ускладнень в оцінці результатів контролю ізоляції. Запропоновано удосконалення методик обробки, що зменшують названі похибки методик і трудомісткість вимірювань. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2016-10-31 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/2074-272X.2016.5.06 10.20998/2074-272X.2016.5.06 Electrical Engineering & Electromechanics; No. 5 (2016); 40-46 Электротехника и Электромеханика; № 5 (2016); 40-46 Електротехніка і Електромеханіка; № 5 (2016); 40-46 2309-3404 2074-272X en ru http://eie.khpi.edu.ua/article/view/2074-272X.2016.5.06/77280 http://eie.khpi.edu.ua/article/view/2074-272X.2016.5.06/77281 Copyright (c) 2016 V. K. Beliaev, H. N. Panenko https://creativecommons.org/licenses/by-nc/4.0

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