Aplicação Prática da Ferramenta T-F Map na Separação de Descargas Parciais em Máquinas Rotativas e Cabos de Média Tensão
Keywords: Partial Discharges, T-F Map, PRPD Pattern, Rotating Machines, Medium Voltage Cables
AbstractThis work aims to encourage the application of partial discharge measurements in electrical equipment in Brazil through the practical utilization of the T-F Map (Time-Frequency Map) tool, applied in the separation of multiple sources of partial discharge. Partial discharge measurements were performed on rotating machines and medium voltage cables. The measurements on rotating machines were made with a stator and a 5000 hp three-phase induction motor, while the measurements on the medium voltage cable were carried out during an artificial aging process. The PRPD (Phase Resolved Partial Discharge) patterns obtained with their respective T-F Map are shown in the article, highlighting the potential of the T-F Map utilization, whether during the development of new equipment or in the evaluation of the equipment insulation in the field.