On-line condition assessment of power transformers using wideband FBG based acoustic sensor

B. Sarkar; C. Koley; N. K. Roy; P. Kumbhakar

doi:10.1117/12.2181394

15 June 2015 On-line condition assessment of power transformers using wideband FBG based acoustic sensor

B. Sarkar, C. Koley, N. K. Roy, P. Kumbhakar

Proceedings Volume 9654, International Conference on Optics and Photonics 2015; 96540Z (2015) https://doi.org/10.1117/12.2181394
Event: International Conference on Optics and Photonics 2015, 2015, Kolkata, India

Abstract

Partial Discharges (PDs) are reported as one of the main reason of insulation degradation and its measurement is most effective, non destructive test often applied to know the insulation condition. Among many available methods acoustic method of PD test is quite popular due to several advantages.In the presented work, a Fiber Bragg Grating (FBG) based sensor has been developed for on-line condition assessment, capturing the acoustic wave produced by the PD event in a prototype power transformer. A variation in acoustic pressure, changes the wavelength of the FBG reflected light, which gives the indication of PD activity. Developed FBG based sensor is found to be superior over conventional PD sensors.

Citation Download Citation

B. Sarkar, C. Koley, N. K. Roy, and P. Kumbhakar "On-line condition assessment of power transformers using wideband FBG based acoustic sensor", Proc. SPIE 9654, International Conference on Optics and Photonics 2015, 96540Z (15 June 2015); https://doi.org/10.1117/12.2181394

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