Quasi-distributed fiber Bragg grating temperature sensors for stator bars monitoring of large electric generators

Uilian José Dreyer; Erlon Vagner da Silva; André Biffe Di Renzo; Cicero Martelli; Jean Carlos Cardozo da Silva

doi:10.1117/12.2236504

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30 May 2016 Quasi-distributed fiber Bragg grating temperature sensors for stator bars monitoring of large electric generators

Uilian José Dreyer, Erlon Vagner da Silva, André Biffe Di Renzo, Cicero Martelli, Jean Carlos Cardozo da Silva

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Proceedings Volume 9916, Sixth European Workshop on Optical Fibre Sensors; 991607 (2016) https://doi.org/10.1117/12.2236504
Event: Sixth European Workshop on Optical Fibre Sensors (EWOFS'2016), 2016, Limerick, Ireland

Abstract

This work presents the application of a sensor based on quasi-distributed Fiber Bragg Gratings to monitor stator bars temperature of large electric generators. The applied FBG packaging method follows industrial standard procedures, and resulted in a robust and reliable sensing method, facilitating the future installation in the power plant. Experimental results are acquired in laboratory using the expected range of temperature values in the real machine. The measurement errors in the recorded results are within the calculated uncertainties and the time constant is shorter than what is obtained with conventional RTD for the same application.

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Uilian José Dreyer, Erlon Vagner da Silva, André Biffe Di Renzo, Cicero Martelli, and Jean Carlos Cardozo da Silva "Quasi-distributed fiber Bragg grating temperature sensors for stator bars monitoring of large electric generators", Proc. SPIE 9916, Sixth European Workshop on Optical Fibre Sensors, 991607 (30 May 2016); https://doi.org/10.1117/12.2236504

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