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Advisor(s)
Abstract(s)
No âmbito da gestão de ativos, prentede-se com este trabalho criar um modelo de avaliação do estado dos seccionadores de alta e muito alta tensão, da responsabilidade da Rede Elétrica Nacional (REN), fomentando o apoio à decisão de intervenções futuras, incluindo propostas de melhoria, de determinar a substituição futura do equipamento, com base numa análise técnico-económica. Pretende-se ainda, elaborar rotinas que permitam uma análise quantitativa e qualitativa dos equipamentos na rede por famílias, tipologia, fabricante e nível de tensão, bem como uma correta análise das avarias registadas.
Desta forma, foi realizada uma análise profunda de avarias em seccionadores, assinaladas num contexto internacional, sendo ajustadas à realidade da REN, tornando-se vantajosa no registo futuro de avarias com uma consequente melhoria de compreensão do sucedido.
Foi também desenvolvido uma metodologia para identificar um indicador do estado do ativo (IEA), aplicados aos seccionadores, permitindo inferir sobre a condição de funcionamento atual e ainda, prever a sua condição futura. Este resultado foi posteriormente avaliado através de uma análise técnico-económica de apoio à decisão de intervenção futura em manutenção, recondicionamento ou substituição do equipamento.
Com este trabalho, foi possível reconhecer as vantagens deste indicador, na perceção e compreensão do estado de funcionamento dos seccionadores, tornando-se pertinente a sua implementação a outros equipamentos, de modo a contribuir fortemente na fiabilidade de serviço em subestações.
In terms of asset management, the purpose of this work is to create a model for assessing the state of high and very high voltage disconnectors, which is the responsibility of the Rede Elétrica Nacional (REN), encouraging support for the decision of future interventions, including improvement proposals, to determine the future replacement of the equipment, based on a technical-economic analysis. It is still intended to elaborate routines that allow a quantitative and qualitative analysis of the equipment in the network by families, typology, manufacturer and voltage level, as well as a correct analysis of the registered faults. In this way, a deep analysis of faults in disconnectors was carried out, marked in an international context, being adjusted to the reality of the REN, becoming advantageous in the future registry of failures with a consequent improvement in understanding what happened. A methodology was also developed to identify an asset condition indicator (ACI), applied to the disconnectors, allowing to infer about the current operating condition and also, to predict its future condition. This result was later evaluated through a technical-economic analysis to support the decision of future intervention in maintenance, refurbishment or replacement of the equipment. With this work, it was possible to recognize the advantages of this indicator, in the perception and understanding of the state of operation of the disconnectors, becoming relevant to its implementation to other equipment, in order to contribute strongly in the reliability of service in substations.
In terms of asset management, the purpose of this work is to create a model for assessing the state of high and very high voltage disconnectors, which is the responsibility of the Rede Elétrica Nacional (REN), encouraging support for the decision of future interventions, including improvement proposals, to determine the future replacement of the equipment, based on a technical-economic analysis. It is still intended to elaborate routines that allow a quantitative and qualitative analysis of the equipment in the network by families, typology, manufacturer and voltage level, as well as a correct analysis of the registered faults. In this way, a deep analysis of faults in disconnectors was carried out, marked in an international context, being adjusted to the reality of the REN, becoming advantageous in the future registry of failures with a consequent improvement in understanding what happened. A methodology was also developed to identify an asset condition indicator (ACI), applied to the disconnectors, allowing to infer about the current operating condition and also, to predict its future condition. This result was later evaluated through a technical-economic analysis to support the decision of future intervention in maintenance, refurbishment or replacement of the equipment. With this work, it was possible to recognize the advantages of this indicator, in the perception and understanding of the state of operation of the disconnectors, becoming relevant to its implementation to other equipment, in order to contribute strongly in the reliability of service in substations.
Description
Keywords
Gestão de Ativos Seccionadores Avarias Indicador do Estado do Ativo Análise Técnico Económica Asset Management Disconnectors Failures Asset Condition Indicator Technical Economic Analysis