Relé digital para proteção contra sobrecorrente e monitoramento da operação de motores de indução
This work describes a micro controlled-based device for over current protection and online monitoring of induction motor operation, able to replace with some advantages the traditional over current thermal relays. It allows real time monitoring of induction machine currents and over current protecti...
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| Formato: | tesis de maestría |
| Estado: | Versión publicada |
| Fecha de publicación: | 2005 |
| País: | Brasil |
| Recursos: | Universidade Federal de Uberlândia (UFU) |
| Repositorio: | Repositório Institucional da UFU |
| Idioma: | portugués |
| OAI Identifier: | oai:repositorio.ufu.br:123456789/14400 |
| Acesso em linha: | https://repositorio.ufu.br/handle/123456789/14400 |
| Access Level: | acceso abierto |
| Palavra-chave: | Motor de indução Relé inteligente Proteção digital Motores elétricos de indução Relés elétricos CNPQ::ENGENHARIAS::ENGENHARIA ELETRICA |
| Resumo: | This work describes a micro controlled-based device for over current protection and online monitoring of induction motor operation, able to replace with some advantages the traditional over current thermal relays. It allows real time monitoring of induction machine currents and over current protection, with programmable current x time characteristic. The typical current x time thermal relay curve can be easily programmed in this device and both the curve and setting points of operation can be altered online with the motor in operation. The device has a network communication interface for remote control and operation monitoring in a remote PC. Due to the programmable characteristic, the hardware can be used for different ranges of motor sizes and rated powers. The work shows details of design and programming, and presents experimental results obtained with a prototype developed in laboratory. |
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