Non-invasive monitoring system of synchronous generator using external field

AUTOR(ES)

Santos, H. F. dos, Rigoni, M., Elias, R. de A., Feler, L. A., Wengerkievicz, C. A. C., Batistela, N. J., Sadowski, N., Kuo-Peng, P., Bastos, J. P. A., Freitas, L. M. de

FONTE

J. Microw. Optoelectron. Electromagn. Appl.

DATA DE PUBLICAÇÃO

2017-03

RESUMO

Abstract This paper presents an equipment dedicated to the monitoring of synchronous generator through the measurements of the external magnetic field time derivative. The equipment uses a methodology which can be an additional technique to those applied currently on the faults detection, mainly when monitoring the incipient faults type. Based on frequency spectra (magnetic signatures), the faults detection is performed by the analysis of the components evolution. As it is not possible to test the ability of the equipment in detecting several types of faults of generators faults in a power plant, a testbench was constructed for this purpose. Faults inserted deliberately in the generators of the testbench are detected by the equipment, showing its capacity. This equipment has been also installed in power plants.

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