Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use

The relevance of the work is caused by the fact that the majority of technological processes almost in all industries, including those related to extraction, transportation, processing of mineral raw materials, cannot be implemented without the use of electric motors. High reliability of these machi...

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Main Authors: Gennadiy Vasilievich Smirnov, Dmitriy Gennadievich Smirnov
Format: Article
Language:Russian
Published: Tomsk Polytechnic University 2016-08-01
Series:Известия Томского политехнического университета: Инжиниринг георесурсов
Subjects:
Online Access:http://izvestiya-tpu.ru/archive/article/view/1738
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author Gennadiy Vasilievich Smirnov
Dmitriy Gennadievich Smirnov
author_facet Gennadiy Vasilievich Smirnov
Dmitriy Gennadievich Smirnov
author_sort Gennadiy Vasilievich Smirnov
collection DOAJ
description The relevance of the work is caused by the fact that the majority of technological processes almost in all industries, including those related to extraction, transportation, processing of mineral raw materials, cannot be implemented without the use of electric motors. High reliability of these machines provides trouble-free operation and guarantees human safety in these industries. The reliability indices of electrical machine operation depend on insulation condition of the windings, which is largely determined by the quality of impregnation. It is impossible to improve winding impregnation, increase the quality and reliability of isolation, without certain methods for controlling the impregnation quality. The main aim of the research is to study the applicability of winding electrical capacitance relative to the housing to control the quality of winding impregnation in electrical machines. Research methods: measurement of electrical capacitive characteristics of the windings of electrical machines; measurement of geometric parameters of winding components; metrological methods to estimate errors of indirect measurements. Results. The authors have proved the possibility of determining the impregnation coefficients by measuring the capacitive characteristics of the winding relative to its body; substantiated the criteria to evaluate the quality of impregnation and formulas for their calculation. The reliability of the results is confirmed experimentally. The paper introduces the detailed analysis and evaluation of metrological characteristics of the proposed method. Real examples show that using the proposed method allows ensuring high accuracy in determining the winding impregnation coefficient in stators of electric machines. Indirect error of determining the impregnation coefficients does not exceed 3,8 %.
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spelling doaj.art-24dd225ded3e41a49e7d20ca6251c6d72023-06-03T21:13:04ZrusTomsk Polytechnic UniversityИзвестия Томского политехнического университета: Инжиниринг георесурсов2500-10192413-18302016-08-013274Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial useGennadiy Vasilievich SmirnovDmitriy Gennadievich SmirnovThe relevance of the work is caused by the fact that the majority of technological processes almost in all industries, including those related to extraction, transportation, processing of mineral raw materials, cannot be implemented without the use of electric motors. High reliability of these machines provides trouble-free operation and guarantees human safety in these industries. The reliability indices of electrical machine operation depend on insulation condition of the windings, which is largely determined by the quality of impregnation. It is impossible to improve winding impregnation, increase the quality and reliability of isolation, without certain methods for controlling the impregnation quality. The main aim of the research is to study the applicability of winding electrical capacitance relative to the housing to control the quality of winding impregnation in electrical machines. Research methods: measurement of electrical capacitive characteristics of the windings of electrical machines; measurement of geometric parameters of winding components; metrological methods to estimate errors of indirect measurements. Results. The authors have proved the possibility of determining the impregnation coefficients by measuring the capacitive characteristics of the winding relative to its body; substantiated the criteria to evaluate the quality of impregnation and formulas for their calculation. The reliability of the results is confirmed experimentally. The paper introduces the detailed analysis and evaluation of metrological characteristics of the proposed method. Real examples show that using the proposed method allows ensuring high accuracy in determining the winding impregnation coefficient in stators of electric machines. Indirect error of determining the impregnation coefficients does not exceed 3,8 %.http://izvestiya-tpu.ru/archive/article/view/1738impregnationcompoundelectrical capacitancedielectric constantmagnetic corecapacitor
spellingShingle Gennadiy Vasilievich Smirnov
Dmitriy Gennadievich Smirnov
Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
Известия Томского политехнического университета: Инжиниринг георесурсов
impregnation
compound
electrical capacitance
dielectric constant
magnetic core
capacitor
title Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
title_full Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
title_fullStr Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
title_full_unstemmed Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
title_short Capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
title_sort capacitive method for controlling the quality of winding impregnation in electric motor for general industrial use
topic impregnation
compound
electrical capacitance
dielectric constant
magnetic core
capacitor
url http://izvestiya-tpu.ru/archive/article/view/1738
work_keys_str_mv AT gennadiyvasilievichsmirnov capacitivemethodforcontrollingthequalityofwindingimpregnationinelectricmotorforgeneralindustrialuse
AT dmitriygennadievichsmirnov capacitivemethodforcontrollingthequalityofwindingimpregnationinelectricmotorforgeneralindustrialuse