Experimental study of the corona performance of aged sand-cast substation connectors

Substation connectors, like many other high-voltage products, are tested once manufactured. However, the corona behavior of aged specimens can differ from that exhibited by newer ones, thus generating detrimental technical and environmental effects. Manufacturers need to know the long-term corona be...

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Autores: Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389, Bogarra Rodríguez, Santiago|||0000-0002-2006-1156, Gómez Pau, Álvaro|||0000-0002-7774-1662, Moreno Eguilaz, Juan Manuel|||0000-0001-6086-7034
Tipo de recurso: artículo
Fecha de publicación:2020
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:2117/189794
Acceso en línea:https://hdl.handle.net/2117/189794
https://dx.doi.org/10.3390/en13112785
Access Level:acceso abierto
Palabra clave:High voltages
Electric conductors
Sand
Corona effect
Ageing
Substation connectors
High-voltage
Sand casting
Alta tensió
Conductors elèctrics
Sorra
Àrees temàtiques de la UPC::Enginyeria elèctrica::Alta tensió
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spelling Experimental study of the corona performance of aged sand-cast substation connectorsRiba Ruiz, Jordi-Roger|||0000-0001-8774-2389Bogarra Rodríguez, Santiago|||0000-0002-2006-1156Gómez Pau, Álvaro|||0000-0002-7774-1662Moreno Eguilaz, Juan Manuel|||0000-0001-6086-7034High voltagesElectric conductorsSandCorona effectAgeingSubstation connectorsHigh-voltageSand castingAlta tensióConductors elèctricsSorraÀrees temàtiques de la UPC::Enginyeria elèctrica::Alta tensióSubstation connectors, like many other high-voltage products, are tested once manufactured. However, the corona behavior of aged specimens can differ from that exhibited by newer ones, thus generating detrimental technical and environmental effects. Manufacturers need to know the long-term corona behavior of substation connectors to offer their customers maximum safety and transparency about such critical products. This paper analyzes the ageing effect on the surface roughness and the visual corona extinction voltage of sand-cast aluminum connectors, which were artificially aged in a salt spray chamber for different periods. The experimental results show an important variability of the surface roughness and corona extinction voltage (CEV) among connectors with the same ageing level due to the sand-casting manufacturing process. The results in this paper also show a slight increase in the surface roughness with the ageing period, although there is not a clear pattern between the applied ageing level and the experimental CEV value. It is concluded that the inherent variability among connectors due to the sand-cast process has more influence than the ageing effect itself.This research was partially funded by Ministerio de Ciencia e Innovación de España, grant number RTC-2017-6297-3 and by the Generalitat de Catalunya, grant number 2017 SGR 967.Peer Reviewed20202020-06-0120202020-06-03journal articlehttp://purl.org/coar/resource_type/c_6501VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/189794https://dx.doi.org/10.3390/en13112785reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 3.0 Spainhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/1897942026-05-27T15:37:01Z
dc.title.none.fl_str_mv Experimental study of the corona performance of aged sand-cast substation connectors
title Experimental study of the corona performance of aged sand-cast substation connectors
spellingShingle Experimental study of the corona performance of aged sand-cast substation connectors
Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
High voltages
Electric conductors
Sand
Corona effect
Ageing
Substation connectors
High-voltage
Sand casting
Alta tensió
Conductors elèctrics
Sorra
Àrees temàtiques de la UPC::Enginyeria elèctrica::Alta tensió
title_short Experimental study of the corona performance of aged sand-cast substation connectors
title_full Experimental study of the corona performance of aged sand-cast substation connectors
title_fullStr Experimental study of the corona performance of aged sand-cast substation connectors
title_full_unstemmed Experimental study of the corona performance of aged sand-cast substation connectors
title_sort Experimental study of the corona performance of aged sand-cast substation connectors
dc.creator.none.fl_str_mv Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
Bogarra Rodríguez, Santiago|||0000-0002-2006-1156
Gómez Pau, Álvaro|||0000-0002-7774-1662
Moreno Eguilaz, Juan Manuel|||0000-0001-6086-7034
author Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
author_facet Riba Ruiz, Jordi-Roger|||0000-0001-8774-2389
Bogarra Rodríguez, Santiago|||0000-0002-2006-1156
Gómez Pau, Álvaro|||0000-0002-7774-1662
Moreno Eguilaz, Juan Manuel|||0000-0001-6086-7034
author_role author
author2 Bogarra Rodríguez, Santiago|||0000-0002-2006-1156
Gómez Pau, Álvaro|||0000-0002-7774-1662
Moreno Eguilaz, Juan Manuel|||0000-0001-6086-7034
author2_role author
author
author
dc.subject.none.fl_str_mv High voltages
Electric conductors
Sand
Corona effect
Ageing
Substation connectors
High-voltage
Sand casting
Alta tensió
Conductors elèctrics
Sorra
Àrees temàtiques de la UPC::Enginyeria elèctrica::Alta tensió
topic High voltages
Electric conductors
Sand
Corona effect
Ageing
Substation connectors
High-voltage
Sand casting
Alta tensió
Conductors elèctrics
Sorra
Àrees temàtiques de la UPC::Enginyeria elèctrica::Alta tensió
description Substation connectors, like many other high-voltage products, are tested once manufactured. However, the corona behavior of aged specimens can differ from that exhibited by newer ones, thus generating detrimental technical and environmental effects. Manufacturers need to know the long-term corona behavior of substation connectors to offer their customers maximum safety and transparency about such critical products. This paper analyzes the ageing effect on the surface roughness and the visual corona extinction voltage of sand-cast aluminum connectors, which were artificially aged in a salt spray chamber for different periods. The experimental results show an important variability of the surface roughness and corona extinction voltage (CEV) among connectors with the same ageing level due to the sand-casting manufacturing process. The results in this paper also show a slight increase in the surface roughness with the ageing period, although there is not a clear pattern between the applied ageing level and the experimental CEV value. It is concluded that the inherent variability among connectors due to the sand-cast process has more influence than the ageing effect itself.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020-06-01
2020
2020-06-03
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/2117/189794
https://dx.doi.org/10.3390/en13112785
url https://hdl.handle.net/2117/189794
https://dx.doi.org/10.3390/en13112785
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 3.0 Spain
http://creativecommons.org/licenses/by/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 3.0 Spain
http://creativecommons.org/licenses/by/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 15,300724

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