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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Autores principales:	V. K. Beliaev, H. N. Panenko
Formato:	article
Lenguaje:	EN RU UK
Publicado:	National Technical University "Kharkiv Polytechnic Institute" 2016
Materias:	high voltage insulation diagnostics data processing procedure processing procedure error dielectric loss tangent current transformer Electrical engineering. Electronics. Nuclear engineering TK1-9971
Acceso en línea:	https://doaj.org/article/61e6a2dd18904e1294a0b7ca4278ced4
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spelling	oai:doaj.org-article:61e6a2dd18904e1294a0b7ca4278ced42021-12-02T17:49:50ZDETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE10.20998/2074-272X.2016.5.062074-272X2309-3404https://doaj.org/article/61e6a2dd18904e1294a0b7ca4278ced42016-11-01T00:00:00Zhttp://eie.khpi.edu.ua/article/view/2074-272X.2016.5.06/77280https://doaj.org/toc/2074-272Xhttps://doaj.org/toc/2309-3404Features 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.V. K. BeliaevH. N. PanenkoNational Technical University "Kharkiv Polytechnic Institute"articlehigh voltage insulationdiagnosticsdata processing procedureprocessing procedure errordielectric loss tangentcurrent transformerElectrical engineering. Electronics. Nuclear engineeringTK1-9971ENRUUKElectrical engineering & Electromechanics, Iss 5, Pp 40-46 (2016)
institution	DOAJ
collection	DOAJ
language	EN RU UK
topic	high voltage insulation diagnostics data processing procedure processing procedure error dielectric loss tangent current transformer Electrical engineering. Electronics. Nuclear engineering TK1-9971
spellingShingle	high voltage insulation diagnostics data processing procedure processing procedure error dielectric loss tangent current transformer Electrical engineering. Electronics. Nuclear engineering TK1-9971 V. K. Beliaev H. N. Panenko DETERMINATION OF INSULATION PARAMETERS OF CURRENT TRANSFORMERS AT MULTIPLE MEASUREMENTS IN MONITORING SYSTEMS UNDER WORKING VOLTAGE
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.
format	article
author	V. K. Beliaev H. N. Panenko
author_facet	V. K. Beliaev H. N. Panenko
author_sort	V. K. Beliaev
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
publisher	National Technical University "Kharkiv Polytechnic Institute"
publishDate	2016
url	https://doaj.org/article/61e6a2dd18904e1294a0b7ca4278ced4
work_keys_str_mv	AT vkbeliaev determinationofinsulationparametersofcurrenttransformersatmultiplemeasurementsinmonitoringsystemsunderworkingvoltage AT hnpanenko determinationofinsulationparametersofcurrenttransformersatmultiplemeasurementsinmonitoringsystemsunderworkingvoltage
_version_	1718379351995580416

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

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