The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers
Purpose. The aim of this work is the determination of the parasitic capacitance’s influence on the accuracy of scale transformation of high-voltage dividers. Analyzing the possibilities of reducing such influence is a pressing problem for high voltage measurement, especially at high frequency range...
Збережено в:
| Дата: | 2025 |
|---|---|
| Автори: | , , , |
| Формат: | Стаття |
| Мова: | English Ukrainian |
| Опубліковано: |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine
2025
|
| Теми: | |
| Онлайн доступ: | http://eie.khpi.edu.ua/article/view/317957 |
| Теги: |
Додати тег
Немає тегів, Будьте першим, хто поставить тег для цього запису!
|
| Назва журналу: | Electrical Engineering & Electromechanics |
Репозитарії
Electrical Engineering & Electromechanics| id |
eiekhpieduua-article-317957 |
|---|---|
| record_format |
ojs |
| institution |
Electrical Engineering & Electromechanics |
| baseUrl_str |
|
| datestamp_date |
2025-01-01T22:17:57Z |
| collection |
OJS |
| language |
English Ukrainian |
| topic |
high-voltage divider parasitic capacitances scale transformation accuracy |
| spellingShingle |
high-voltage divider parasitic capacitances scale transformation accuracy Haran, Y. O. Trotsenko, Y. O. Protsenko, O. R. Dixit, M. M. The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| topic_facet |
high-voltage divider parasitic capacitances scale transformation accuracy високовольтний подільник напруги паразитні ємності точність масштабного перетворення |
| format |
Article |
| author |
Haran, Y. O. Trotsenko, Y. O. Protsenko, O. R. Dixit, M. M. |
| author_facet |
Haran, Y. O. Trotsenko, Y. O. Protsenko, O. R. Dixit, M. M. |
| author_sort |
Haran, Y. O. |
| title |
The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| title_short |
The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| title_full |
The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| title_fullStr |
The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| title_full_unstemmed |
The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| title_sort |
impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers |
| title_alt |
Вплив паразитних ємностей на точність масштабного перетворення високовольтних подільників напруги |
| description |
Purpose. The aim of this work is the determination of the parasitic capacitance’s influence on the accuracy of scale transformation of high-voltage dividers. Analyzing the possibilities of reducing such influence is a pressing problem for high voltage measurement, especially at high frequency range of input voltage. Methodology. Mathematical modeling of the voltage divider equivalent circuit, considering parasitic capacitances and inductances has been performed in the QUCS circuit simulator software under sinusoidal alternating current conditions in the range from 100 Hz to 1 MHz. Using the FEMM software, the finite element method was used to simulate the density distribution of capacitive currents in the module with capacitance graded insulation of the high-voltage arm of the voltage divider. Results. The results of the calculations show that the percentage of parasitic capacitive currents decreases exponentially depending on the ratio of the outer radii of the shielding disks to the distance between them. However, even with the outer radii of the shielding disks of about 3 m, capacitive currents still make up about 1 % of the total current flowing in the measuring circuit of the voltage divider. Instead of increasing outer radii, it is proposed to use high-voltage capacitance graded insulation between the shielding disks. As a result, a stable error of large-scale voltage transformation was obtained when the values of parasitic capacitances change, and it is proposed to manufacture the high-voltage arm of the voltage divider from the same type of high-voltage modules. Originality. The results of modeling the dependence of the accuracy of the voltage divider scale transformation on the ratio of the structural elements geometric parameters of its high-voltage arm were obtained. The solution has been proposed that involves changing the design of the high-voltage arm of the voltage divider, which significantly reduces the dependence of its scale transformation error on significant changes in the parasitic capacitances of the structure components on grounded surfaces. Practical value. The results of mathematical modeling of the characteristics of the voltage divider high-voltage arm make it possible to design, for the purpose of serial production, the same type of high-voltage modules for assembling on-site broadband voltage dividers for any nominal voltage, which will have the possibility of integration into Smart Grid systems. References 23, tables 1, figures 8. |
| publisher |
National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine |
| publishDate |
2025 |
| url |
http://eie.khpi.edu.ua/article/view/317957 |
| work_keys_str_mv |
AT haranyo theimpactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT trotsenkoyo theimpactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT protsenkoor theimpactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT dixitmm theimpactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT haranyo vplivparazitnihêmnostejnatočnístʹmasštabnogoperetvorennâvisokovolʹtnihpodílʹnikívnaprugi AT trotsenkoyo vplivparazitnihêmnostejnatočnístʹmasštabnogoperetvorennâvisokovolʹtnihpodílʹnikívnaprugi AT protsenkoor vplivparazitnihêmnostejnatočnístʹmasštabnogoperetvorennâvisokovolʹtnihpodílʹnikívnaprugi AT dixitmm vplivparazitnihêmnostejnatočnístʹmasštabnogoperetvorennâvisokovolʹtnihpodílʹnikívnaprugi AT haranyo impactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT trotsenkoyo impactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT protsenkoor impactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers AT dixitmm impactofparasiticcapacitancesontheaccuracyofscaletransformationofhighvoltagedividers |
| first_indexed |
2025-07-17T11:50:34Z |
| last_indexed |
2025-07-17T11:50:34Z |
| _version_ |
1850412210239569920 |
| spelling |
eiekhpieduua-article-3179572025-01-01T22:17:57Z The impact of parasitic capacitances on the accuracy of scale transformation of high-voltage dividers Вплив паразитних ємностей на точність масштабного перетворення високовольтних подільників напруги Haran, Y. O. Trotsenko, Y. O. Protsenko, O. R. Dixit, M. M. high-voltage divider parasitic capacitances scale transformation accuracy високовольтний подільник напруги паразитні ємності точність масштабного перетворення Purpose. The aim of this work is the determination of the parasitic capacitance’s influence on the accuracy of scale transformation of high-voltage dividers. Analyzing the possibilities of reducing such influence is a pressing problem for high voltage measurement, especially at high frequency range of input voltage. Methodology. Mathematical modeling of the voltage divider equivalent circuit, considering parasitic capacitances and inductances has been performed in the QUCS circuit simulator software under sinusoidal alternating current conditions in the range from 100 Hz to 1 MHz. Using the FEMM software, the finite element method was used to simulate the density distribution of capacitive currents in the module with capacitance graded insulation of the high-voltage arm of the voltage divider. Results. The results of the calculations show that the percentage of parasitic capacitive currents decreases exponentially depending on the ratio of the outer radii of the shielding disks to the distance between them. However, even with the outer radii of the shielding disks of about 3 m, capacitive currents still make up about 1 % of the total current flowing in the measuring circuit of the voltage divider. Instead of increasing outer radii, it is proposed to use high-voltage capacitance graded insulation between the shielding disks. As a result, a stable error of large-scale voltage transformation was obtained when the values of parasitic capacitances change, and it is proposed to manufacture the high-voltage arm of the voltage divider from the same type of high-voltage modules. Originality. The results of modeling the dependence of the accuracy of the voltage divider scale transformation on the ratio of the structural elements geometric parameters of its high-voltage arm were obtained. The solution has been proposed that involves changing the design of the high-voltage arm of the voltage divider, which significantly reduces the dependence of its scale transformation error on significant changes in the parasitic capacitances of the structure components on grounded surfaces. Practical value. The results of mathematical modeling of the characteristics of the voltage divider high-voltage arm make it possible to design, for the purpose of serial production, the same type of high-voltage modules for assembling on-site broadband voltage dividers for any nominal voltage, which will have the possibility of integration into Smart Grid systems. References 23, tables 1, figures 8. В роботі розглянуто вплив будови високовольтного плеча подільника напруги на його характеристики. Для забезпечення зменшення впливу паразитних ємностей конструктивних елементів на зосереджені елементи активної частини та на зовнішні об’єкти досліджено методи екранування зосереджених елементів. Математичним моделюванням визначено вплив співвідношення геометричних параметрів конструкційних елементів високовольтного плеча на похибку масштабного перетворення напруги в області високих частот. В результаті моделювання обрано спосіб екранування зосереджених елементів активної частини подільника напруги з використанням багатошарової ізоляції конденсаторного типу, яка забезпечує стабільність похибки масштабного перетворення напруги в широкому діапазоні частот. Запропоновані зміни в будові високовольтного плеча дозволяють перейти на модульну будову подільника напруги і перейти до його серійного виробництва. Бібл. 23, табл. 1, рис. 8. National Technical University "Kharkiv Polytechnic Institute" and Аnatolii Pidhornyi Institute of Power Machines and Systems of NAS of Ukraine 2025-01-02 Article Article Peer-reviewed Article application/pdf application/pdf http://eie.khpi.edu.ua/article/view/317957 10.20998/2074-272X.2025.1.09 Electrical Engineering & Electromechanics; No. 1 (2025); 65-72 Электротехника и Электромеханика; № 1 (2025); 65-72 Електротехніка і Електромеханіка; № 1 (2025); 65-72 2309-3404 2074-272X en uk http://eie.khpi.edu.ua/article/view/317957/308424 http://eie.khpi.edu.ua/article/view/317957/308425 Copyright (c) 2024 Y. O. Haran, Y. O. Trotsenko, O. R. Protsenko, M. M. Dixit http://creativecommons.org/licenses/by-nc/4.0 |