| 1. Identificação | ||||
| Tipo de Referência | Artigo em Revista Científica (Journal Article) | |||
| Site | mtc-m21d.sid.inpe.br | |||
| Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S | |||
| Identificador | 8JMKD3MGP3W34T/47BA9F2 | |||
| Repositório | sid.inpe.br/mtc-m21d/2022/07.25.16.30 (acesso restrito) | |||
| Última Atualização | 2022:07.25.16.30.58 (UTC) simone | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21d/2022/07.25.16.30.58 | |||
| Última Atualização dos Metadados | 2023:01.03.16.46.11 (UTC) administrator | |||
| DOI | 10.3390/en15134861 | |||
| ISSN | 1996-1073 | |||
| Chave de Citação | WolmaransNyaSchCovSab:2022:InDiTo | |||
| Título | The Influence of Diethylaniline and Toluene on the Streamer Propagation in Cyclohexane between a Point-Plane Gap under Positive Impulse Voltage Stress  | |||
| Ano | 2022 | |||
| Mês | July | |||
| Data de Acesso | 18 maio 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 4334 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Wolmarans, Carl P. 2 Nyamupangedengu, Cuthbert 3 Schumann, Carina 4 Coville, Neil J. 5 Saba, Marcelo Magalhães Fares | |||
| Identificador de Curriculo | 1 2 3 4 5 8JMKD3MGP5W/3C9JHP6 | |||
| ORCID | 1 2 3 4 0000-0001-5370-1386 5 0000-0001-5857-761X | |||
| Grupo | 1 2 3 4 5 DIIAV-CGCT-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 University of the Witwatersrand 2 University of the Witwatersrand 3 University of the Witwatersrand 4 University of the Witwatersrand 5 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 carl.wolmarans@nynas.com 2 cuthbert.nyamupangedengu@wits.ac.za 3 carina.schumann@wits.ac.za 4 neil.coville@wits.ac.za 5 marcelo.saba@inpe.br | |||
| Revista | Energies | |||
| Volume | 15 | |||
| Número | 13 | |||
| Páginas | e4861 | |||
| Nota Secundária | A2_CIÊNCIAS_AGRÁRIAS_I B1_INTERDISCIPLINAR B1_ENGENHARIAS_II | |||
| Histórico (UTC) | 2022-07-25 16:31:23 :: simone -> administrator :: 2022 2023-01-03 16:46:11 :: administrator -> simone :: 2022 | |||
| 3. Conteúdo e estrutura | ||||
| É a matriz ou uma cópia? | é a matriz | |||
| Estágio do Conteúdo | concluido | |||
| Transferível | 1 | |||
| Tipo do Conteúdo | External Contribution | |||
| Tipo de Versão | publisher | |||
| Palavras-Chave | streamer propagation cyclohexane additives high-speed imaging | |||
| Resumo | Liquid insulation is used in high voltage equipment such as power transformers as both dielectric medium and coolant. Breakdown in liquid insulation tends to be governed either by streamer initiation under more uniform fields, or by streamer propagation under more non-uniform fields. A model streamer propagation study, which screens the effectiveness of additives based on cyclohexane and mixtures with diethylaniline (DEA) and toluene, is presented in this paper. The effect of additives, at different concentrations, on streamer propagation velocity in cyclohexane under an applied lightning impulse voltage of positive polarity is studied. Cyclohexane (ionisation potential 9.88 eV) was chosen because, being a hydrocarbon, it shares similarities with the constituents of common insulating liquids. Previous studies have also shown how, in general, the addition of additives of lower ionization potential than the bulk liquid can slow down streamer propagation in insulating liquids. A point-plane electrode configuration of 70 mm gap with a 5 mu m tip radius is used and subjected to an applied positive polarity impulse of 1.2/50 mu s. A high velocity imaging system is also used to capture streamer images to validate a Time-To-Breakdown (TTB) measurement approach used in inferring approximate streamer velocity. The DEA (ionisation potential 6.98 eV) was found to be an effective additive to slow down positive polarity streamers in cyclohexane in the applied voltage range (approximate to 220-280 kV peak) in concentrations above approximately 0.33% (by volume). Toluene (ionisation potential 8.82 eV) was found not to significantly slow down streamers in cyclohexane, even at 10% concentration, for the same voltage range. This is postulated to be due to the fact that toluene does not have a low enough ionisation potential (with respect to that of the cyclohexane) to change the streamer branching characteristics sufficiently during propagation. | |||
| Área | CST | |||
| Arranjo | urlib.net > CGCT > The Influence of... | |||
| Conteúdo da Pasta doc | acessar | |||
| Conteúdo da Pasta source | não têm arquivos | |||
| Conteúdo da Pasta agreement |
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| 4. Condições de acesso e uso | ||||
| Idioma | en | |||
| Arquivo Alvo | energies-15-04861.pdf | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Permissão de Leitura | deny from all and allow from 150.163 | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/46KUATE | |||
| Lista de Itens Citando | sid.inpe.br/mtc-m21/2012/07.13.14.54.40 1 sid.inpe.br/bibdigital/2022/04.03.22.23 1 | |||
| Divulgação | WEBSCI; PORTALCAPES; SCOPUS. | |||
| Acervo Hospedeiro | urlib.net/www/2021/06.04.03.40 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivingpolicy archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||