Analysis of capacitance to ground formulas for different high-voltage electrodes

Stray capacitance can seriously affect the behavior of high-voltage devices, including voltage dividers, insulator strings, modular power supplies, or measuring instruments, among others. Therefore its effects must be considered when designing high-voltage projects and tests. Due to the difficulty i...

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Detalles Bibliográficos
Autores: Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389, Capelli, Francesca
Tipo de recurso: artículo
Fecha de publicación:2018
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/118035
Acceso en línea:https://hdl.handle.net/2117/118035
https://dx.doi.org/10.3390/en11051090
Access Level:acceso abierto
Palabra clave:High voltages
Finite element method
Stray currents
Electric leakage
Electrodes
high-voltage
stray capacitance
finite element method
simulation
leakage current
Alta tensió
Elements finits, Mètode dels
Elèctrodes
Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
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spelling Analysis of capacitance to ground formulas for different high-voltage electrodesRiba Ruiz, Jordi-Roger|||0000-0001-8774-2389Capelli, FrancescaHigh voltagesFinite element methodStray currentsElectric leakageElectrodeshigh-voltagestray capacitancefinite element methodsimulationleakage currentAlta tensióElements finits, Mètode delsElèctrodesÀrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctricaStray capacitance can seriously affect the behavior of high-voltage devices, including voltage dividers, insulator strings, modular power supplies, or measuring instruments, among others. Therefore its effects must be considered when designing high-voltage projects and tests. Due to the difficulty in measuring the effects of stray capacitance, there is a lack of available experimental data. Therefore, for engineers and researchers there is a need to revise and update the available information, as well as to have useful and reliable data to estimate the stray capacitance in the initial designs. Although there are some analytical formulas to calculate the capacitance of some simple geometries, they have a limited scope. However, since such formulas can deal with different geometries and operating conditions, it is necessary to assess their consistency and applicability. This work calculates the stray capacitance to ground for geometries commonly found in high-voltage laboratories and facilities, including wires or rods of different lengths, spheres and circular rings, the latter ones being commonly applied as corona protections. This is carried out by comparing the results provided by the available analytical formulas with those obtained from finite element method (FEM) simulation, since field simulation methods allow solving such problem. The results of this work prove the suitability and flexibility of the FEM approach, because FEM models can deal with wider range of electrodes, configurations and operating conditions.Peer Reviewed20182018-01-0120182018-06-12journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/118035https://dx.doi.org/10.3390/en11051090reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivs 3.0 Spainhttp://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1180352026-05-27T15:37:01Z
dc.title.none.fl_str_mv Analysis of capacitance to ground formulas for different high-voltage electrodes
title Analysis of capacitance to ground formulas for different high-voltage electrodes
spellingShingle Analysis of capacitance to ground formulas for different high-voltage electrodes
Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
High voltages
Finite element method
Stray currents
Electric leakage
Electrodes
high-voltage
stray capacitance
finite element method
simulation
leakage current
Alta tensió
Elements finits, Mètode dels
Elèctrodes
Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
title_short Analysis of capacitance to ground formulas for different high-voltage electrodes
title_full Analysis of capacitance to ground formulas for different high-voltage electrodes
title_fullStr Analysis of capacitance to ground formulas for different high-voltage electrodes
title_full_unstemmed Analysis of capacitance to ground formulas for different high-voltage electrodes
title_sort Analysis of capacitance to ground formulas for different high-voltage electrodes
dc.creator.none.fl_str_mv Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
Capelli, Francesca
author Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
author_facet Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
Capelli, Francesca
author_role author
author2 Capelli, Francesca
author2_role author
dc.subject.none.fl_str_mv High voltages
Finite element method
Stray currents
Electric leakage
Electrodes
high-voltage
stray capacitance
finite element method
simulation
leakage current
Alta tensió
Elements finits, Mètode dels
Elèctrodes
Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
topic High voltages
Finite element method
Stray currents
Electric leakage
Electrodes
high-voltage
stray capacitance
finite element method
simulation
leakage current
Alta tensió
Elements finits, Mètode dels
Elèctrodes
Àrees temàtiques de la UPC::Energies::Energia elèctrica::Automatització i control de l'energia elèctrica
description Stray capacitance can seriously affect the behavior of high-voltage devices, including voltage dividers, insulator strings, modular power supplies, or measuring instruments, among others. Therefore its effects must be considered when designing high-voltage projects and tests. Due to the difficulty in measuring the effects of stray capacitance, there is a lack of available experimental data. Therefore, for engineers and researchers there is a need to revise and update the available information, as well as to have useful and reliable data to estimate the stray capacitance in the initial designs. Although there are some analytical formulas to calculate the capacitance of some simple geometries, they have a limited scope. However, since such formulas can deal with different geometries and operating conditions, it is necessary to assess their consistency and applicability. This work calculates the stray capacitance to ground for geometries commonly found in high-voltage laboratories and facilities, including wires or rods of different lengths, spheres and circular rings, the latter ones being commonly applied as corona protections. This is carried out by comparing the results provided by the available analytical formulas with those obtained from finite element method (FEM) simulation, since field simulation methods allow solving such problem. The results of this work prove the suitability and flexibility of the FEM approach, because FEM models can deal with wider range of electrodes, configurations and operating conditions.
publishDate 2018
dc.date.none.fl_str_mv 2018
2018-01-01
2018
2018-06-12
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/118035
https://dx.doi.org/10.3390/en11051090
url https://hdl.handle.net/2117/118035
https://dx.doi.org/10.3390/en11051090
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300719

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