Comparison of Cable Insulation Control in Weak and Strong Electric Fields / N. S. Starikova, V. V. Redko, G. V. Vavilova

Уровень набора: (RuTPU)RU\TPU\network\5920, Applied Mechanics and Materials, Scientific JournalОсновной Автор-лицо: Starikova, N. S., specialist in the field of non-destructive testing, Engineer of Tomsk Polytechnic University, 1990-, Nadezhda SergeevnaАльтернативный автор-лицо: Redko, V. V., specialist in the field of non-destructive testing, Associate Professor of Tomsk Polytechnic University, Candidate of technical sciences, 1974-, Vitaliy Vladimirovich;Vavilova, G. V., specialist in the field of non-destructive testing, Senior lecturer of Tomsk Polytechnic University, 1981-, Galina VasilievnaКоллективный автор (вторичный): Национальный исследовательский Томский политехнический университет (ТПУ), Институт неразрушающего контроля (ИНК), Кафедра информационно-измерительной техники (ИИТ)Язык: английский.Серия: Modelling and Numerical Simulation, Algorithms and Mathematical Methods for Applied ProblemsРезюме или реферат: In this paper the modern methods of cable products insulation control are referred. A comparison of efficiency of the cable insulation defects control by changing in cable area capacitance is carried out in the strong and weak electric fields. The electric cable can be represented as a cylindrical capacitor, but to simplify the issue the insulation area is represented as a plate capacitor with anisotropic dielectric. The cable insulation model is created in the software Comsol Multyphysic. The effect of the defect dimension on the cable area electric capacitance in a strong and weak electric field is described. Also, the control sensitivity of both methods was assessed and compared with each other. The control sensitivity in a weak electric field is slightly higher for the defects with small size (less than 70% from insulation thickness). The control sensitivity in a strong electric field is considerably higher for the defects with big size (more than 70% from insulation thickness)..Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | кабельное производство | дефекты | изоляция Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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In this paper the modern methods of cable products insulation control are referred. A comparison of efficiency of the cable insulation defects control by changing in cable area capacitance is carried out in the strong and weak electric fields. The electric cable can be represented as a cylindrical capacitor, but to simplify the issue the insulation area is represented as a plate capacitor with anisotropic dielectric. The cable insulation model is created in the software Comsol Multyphysic. The effect of the defect dimension on the cable area electric capacitance in a strong and weak electric field is described. Also, the control sensitivity of both methods was assessed and compared with each other. The control sensitivity in a weak electric field is slightly higher for the defects with small size (less than 70% from insulation thickness). The control sensitivity in a strong electric field is considerably higher for the defects with big size (more than 70% from insulation thickness).

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