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Proceedings Paper

Multi-point fibre optic hot-spot network integrated into a high power transformer
Author(s): A. B. Lobo Ribeiro; N. Eira; J. M. Sousa; P. T. Guerreiro; J. A. R. Salcedo
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Paper Abstract

A multi-point fibre optic temperature sensor network integrated inside a power transformer for continuous monitoring of hot-spots on windings, cellulose insulations and oil, is demonstrated and tested. The temperature sensors are based on proprietary encapsulated fibre Bragg grating (FBG) sensors and the optical interrogation unit uses a special designed narrowband high power broadband fibre source. The fibre optic sensing network is integrated into a 440 MVA power transformer having 12 temperature sensing points, distributed over several physical locations inside de transformer (windings, cellulose insulators, magnetic circuit and cooling oil entrance and exit).

Paper Details

Date Published: 2 July 2007
PDF: 4 pages
Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66193V (2 July 2007); doi: 10.1117/12.738780
Show Author Affiliations
A. B. Lobo Ribeiro, Univ. Fernando Pessoa (Portugal)
N. Eira, Univ. of Porto (Portugal)
J. M. Sousa, Multiwave Photonics, S.A. (Portugal)
P. T. Guerreiro, Multiwave Photonics, S.A. (Portugal)
J. A. R. Salcedo, Multiwave Photonics, S.A. (Portugal)


Published in SPIE Proceedings Vol. 6619:
Third European Workshop on Optical Fibre Sensors

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