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Proceedings Paper

On-line condition assessment of power transformers using wideband FBG based acoustic sensor
Author(s): B. Sarkar; C. Koley; N. K. Roy; P. Kumbhakar
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Paper 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.

Paper Details

Date Published: 15 June 2015
PDF: 4 pages
Proc. SPIE 9654, International Conference on Optics and Photonics 2015, 96540Z (15 June 2015); doi: 10.1117/12.2181394
Show Author Affiliations
B. Sarkar, National Institute of Technology Durgapur (India)
C. Koley, National Institute of Technology Durgapur (India)
N. K. Roy, National Institute of Technology Durgapur (India)
P. Kumbhakar, National Institute of Technology Durgapur (India)


Published in SPIE Proceedings Vol. 9654:
International Conference on Optics and Photonics 2015
Kallol Bhattacharya, Editor(s)

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