Haque, Nasirul and Ittiarah, Jijo V and Gangopadhyay, Tarun Kumar and Chakravorti, Sivaji (2015) Temperature monitoring of power transformer using fiber-optic sensor. In: 2015 1st Conference on Power, Dielectric and Energy Management at NERIST, ICPDEN 2015, 10 - 11 January 2015, Itanagar, India.

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Abstract

A fiber-optic transformer winding temperature sensor based on High Birefringence Fiber Loop Mirror (Hi-Bi FLM) for online temperature monitoring in power transformer is proposed. The proposed sensor works on the principle of interference between two counter propagating light waves having a phase difference. A detailed theoretical and practical investigation proved this sensor to be suitable for online transformer monitoring applications, showing insensitivity to high electric field as well as transformer vibrations. Experimental results confirmed theoretical predictions, depicting a wavelength sensitivity of 0.58 nm/°C with high accuracy and reversibility, and the minimum detectable temperature variation is 0.173°C.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	015 1st Conference on Power, Dielectric and Energy Management at NERIST, ICPDEN 2015; North Eastern Regional Institute of Science and Technology (NERIST)Arunachal Pradesh; India; 10 - 11 January 2015
Subjects:	Processing Science Electronics
Divisions:	Fiber Optics and Photonics
Depositing User:	Bidhan Chaudhuri
Date Deposited:	30 May 2016 11:44
Last Modified:	30 May 2016 11:44
URI:	http://cgcri.csircentral.net/id/eprint/3455

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