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Towards optical monitoring of chemical markers in transformer insulation oil

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#Electricity Network #Monitoring and Control

Publications - Paper

Towards optical monitoring of chemical markers in transformer insulation oil

The performance of a developed optical sensor was evaluated on the detection of a chemical by-product of transformer paper degradation, furfural (2-FAL), in used insulating oil samples taken from transformers undergoing maintenance. The results were compared with those of standard methods applied to the same samples. The good agreement achieved that emerges from the comparative analysis confirms the ability of the optical sensor to detect low concentrations of 2-FAL directly in the mineral oil, without any treatment or dilution of the oil.

The publication illustrates an optical sensor for monitoring transformer oil. It was implemented in a plastic optical fiber that serves as an optical platform for the sensing element, i.e., a layer of molecularly printed polymer, which is a robust, reproducible, and low-cost receptor for chemical marker in the insulating oil matrix. This optical sensor was evaluated on the detection of a chemical byproduct of transformer paper degradation, furfuraldehyde (2-FAL).

The performance of the optical sensor was tested on samples of used insulating oil leaked from ex-serviced instrument transformers and compared with the results of standard methods applied to the same samples. The good agreement achieved emerging from the comparative analysis confirms the ability of the optical sensor to detect low 2-FAL concentrations directly in mineral oil, without any treatment or dilution of the oil.

Rif.RSE​

18007562

Destination​

ICDL 2019 20th IEEE International Conference on Dielectric Liquids, June 21-23, 2019

Publication Date

31 December 2019

Authors​

L. De Maria, F. Scatiggio (TERNA S.p.A), L. Zeni (Università della Campania), N. Cennamo (Università della Campania), M. Pesavento (Università di Pavia)

Publication Type

Paper

Projects

Management, monitoring and control of the transmission grid (Mon4Grid2018)

Related tags

#Electricity Network #Monitoring and Control

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