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Abstract(s)
A preocupação crescente com a segurança pública e a complexidade crescente das actuais instalações eléctricas de instalações domésticas, comerciais e industriais coloca uma responsabilidade acrescida sobre os técnicos responsáveis pela realização de ensaios elétricos, que têm que verificar o cumprimento das exigentes normas internacionais em vigor [1]. Atualmente, no fornecimento de energia elétrica existe uma exigência elevada, sendo necessário proteger o sistema elétrico de energia de várias falhas. Tendo em conta a importância no sistema elétrico dos produtos de média tensão é determinante que a sua taxa de avarias seja mínima. Torna-se então imperativo que exista um grande controlo da qualidade no fabrico deste tipo de equipamentos. De forma a garantir a sua qualidade, é assim necessário que sejam efetuados um conjunto de Ensaios de Tipo e de Rotina, como forma de verificar o correto funcionamento do produto. Assim, a equipa de Inspeção e Ensaios do Departamento de Qualidade da Unidade da Aparelhagem de Média e Alta Tensão (AMT), e que pertence ao grupo EFACEC, tem como principal função a realização de Ensaios de Rotina. Até ao momento, os ensaios e respetiva validação eram tipicamente feitos de modo informal, sendo o Relatório de Ensaio e o Protocolo de Receção ao Cliente em Fábrica (FAT – Factory Acceptance Tests) os únicos elementosformais do processo. Esta situação não é compatível com o atual modo de funcionamento de empresas com uma acrescida responsabilidade. O presente trabalho contribui neste esforço pois, de um modo formal, pretende-se identificar os procedimentos relativos à realização de ensaios dielétricostendo em vista o fornecimento de documentação de apoio ao Departamento de Qualidade, nomeadamente a equipa de Inspeção e Ensaios, inserindo-se como Instrução Operacional na abordagem de produtos de média tensão - distribuição primária e secundária. Com base na Instrução Operacional realizada, adaptou-se uma outra versão com o objetivo de servir como guia de ensaio aos clientes nos protocolos de receção ao cliente e poder ser adicionada aos relatórios de ensaio, contendo informação acerca dos procedimentos necessários para realização do ensaio no local de serviço. Adicionalmente, pretende-se uma solução para um assunto pendente na Unidade AMT e relativa à realização de ensaios dielétricos num produto inovador da empresa denominado de IAT – interruptor aéreo com um transformador de tensão para serviços auxiliares. Nunca foi possível submeter o produto a este tipo de testes na Unidade AMT. É um assunto muito crítico pois existem encomendas de um cliente que se encontram dependentes da realização desse ensaio. Assim, no desenvolvimento da solução e, através de um trabalho de investigação, pretende-se integrar as informações relativas aos procedimentos necessários para a realização do ensaio dielétrico neste produto.
The growing concern about public safety and the growing complexity of existing electrical installations in domestic, commercial and industrial installations places an increased responsibility on the technicians responsible for carrying out electrical tests, who have to check compliance with the exacting international standards in force [1]. Currently, there is a high requirement in the electric power supply, and it is necessary to protect the electrical energy system from several faults. Taking into account the importance in the electrical system of medium voltage products, it is essential that its failure rate is minimal. It is therefore imperative that there is a great quality control in the manufacture of this type of equipment. In order to ensure its quality, it is therefore necessary to carry out a set of Type Tests and Routine, as a way of verifying the correct functioning of the product. Thus, the Inspection and Testing team of the Quality Department of the Medium and High Voltage Equipment (AMT), which belongs to the EFACEC group, has as main function the performance of Routine Tests. To date, the tests and their validation were typically done informally, with the Test Report and the Factory Acceptance Tests (FAT) being the only formal elements of the process. This situation is not compatible with the current way of operating companies with increased responsibility. The present work contributes to this effort because, in a formal way, it is intended to identify the procedures for conducting dielectric tests in order to provide documentation to support the Quality Department, namely the Inspection and Testing team, as Operational Instruction in the approach of medium voltage products - primary and secondary distribution. On the basis of Operational Instruction, another version was adapted to serve as a test guide for customers in the customer receipt protocols and could be added to the test reports, containing information about the procedures required to carry out the on-site test of service. In addition, a solution is sought for a pending issue in the AMT Unit and relating to the performance of dielectric tests in an innovative product of the company called IAT - overhead switch with a voltage transformer for auxiliary services. It was never possible to submit the product to this type of tests in the AMT Unit. This is a very critical issue because there are orders from a customer that are dependent on the test. Thus, in the development of the solution and through a research work, it is intended to integrate the information regarding the procedures necessary for the realization of the dielectric test in this product.
The growing concern about public safety and the growing complexity of existing electrical installations in domestic, commercial and industrial installations places an increased responsibility on the technicians responsible for carrying out electrical tests, who have to check compliance with the exacting international standards in force [1]. Currently, there is a high requirement in the electric power supply, and it is necessary to protect the electrical energy system from several faults. Taking into account the importance in the electrical system of medium voltage products, it is essential that its failure rate is minimal. It is therefore imperative that there is a great quality control in the manufacture of this type of equipment. In order to ensure its quality, it is therefore necessary to carry out a set of Type Tests and Routine, as a way of verifying the correct functioning of the product. Thus, the Inspection and Testing team of the Quality Department of the Medium and High Voltage Equipment (AMT), which belongs to the EFACEC group, has as main function the performance of Routine Tests. To date, the tests and their validation were typically done informally, with the Test Report and the Factory Acceptance Tests (FAT) being the only formal elements of the process. This situation is not compatible with the current way of operating companies with increased responsibility. The present work contributes to this effort because, in a formal way, it is intended to identify the procedures for conducting dielectric tests in order to provide documentation to support the Quality Department, namely the Inspection and Testing team, as Operational Instruction in the approach of medium voltage products - primary and secondary distribution. On the basis of Operational Instruction, another version was adapted to serve as a test guide for customers in the customer receipt protocols and could be added to the test reports, containing information about the procedures required to carry out the on-site test of service. In addition, a solution is sought for a pending issue in the AMT Unit and relating to the performance of dielectric tests in an innovative product of the company called IAT - overhead switch with a voltage transformer for auxiliary services. It was never possible to submit the product to this type of tests in the AMT Unit. This is a very critical issue because there are orders from a customer that are dependent on the test. Thus, in the development of the solution and through a research work, it is intended to integrate the information regarding the procedures necessary for the realization of the dielectric test in this product.
Description
Keywords
Otimização Qualidade Inspeção e ensaios Quadros elétricos Celas de média tensão Disjuntores de média tensão Interruptores Transformadores de tensão Optimization Quality Inspection and testing Electrical switchboards Medium voltage cells Medium voltage circuit breakers Switches Voltage transformers