Análise da aplicação de equipamentos híbridos de proteção e seccionamento em subestações elétricas

Abstract

This work is dedicated to understand the behavior of protective electrical equipment isolated by SF6 when they are grouped into a hybrid and compact module in order to allow a reduction in the number of maintenance and also to reduce the size of the construction area used for High Voltage Electrical Substations that are not sheltered. It was considered a huge number of practical and interesting situations including reviews of manuals (operational and maintenance) and some installations and transportations issues in order to understand the real importance of these equipment in electrical substations. The methodology consists of, first, the literature review of some electrical equipment that are responsible for disconnecting, interrupt and ground the current in the electrical system like current transformers, circuit breakers and disconnectors. After that, a functional description of these mixed technologies switches (MTS) is done, allowing a comparative analysis between those two types of equipment (conventional and compact) and then indicating based on a case study the advantages and disadvantages of using each technology in the power system substations.