Multi-point fibre optic hot-spot network integrated into a high power transformer

A. B. Lobo Ribeiro; N. Eira; J. M. Sousa; P. T. Guerreiro; J. A. R. Salcedo

doi:10.1117/12.738780

2 July 2007 Multi-point fibre optic hot-spot network integrated into a high power transformer

A. B. Lobo Ribeiro, N. Eira, J. M. Sousa, P. T. Guerreiro, J. A. R. Salcedo

Proceedings Volume 6619, Third European Workshop on Optical Fibre Sensors; 66193V (2007) https://doi.org/10.1117/12.738780
Event: Third European Workshop on Optical Fibre Sensors, 2007, Napoli, Italy

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).

Citation Download Citation

A. B. Lobo Ribeiro, N. Eira, J. M. Sousa, P. T. Guerreiro, and J. A. R. Salcedo "Multi-point fibre optic hot-spot network integrated into a high power transformer", Proc. SPIE 6619, Third European Workshop on Optical Fibre Sensors, 66193V (2 July 2007); https://doi.org/10.1117/12.738780

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