An enhanced fiber-optic temperature sensor system for power transformer monitoring

Author

Betta, Giovanni ; Pietrosanto, Antonio ; Scaglione, Antonio

Author_Institution

Dept. of Autom., Electromagnetism, Inf. Eng. & Ind. Math., Univ. of Cassino, Italy

Volume

50

Issue

5

fYear

2001

fDate

10/1/2001 12:00:00 AM

Firstpage

1138

Lastpage

1143

Abstract

The paper deals with a sensor for temperature measurements in fluids. The sensor is based on a fiber-optic sensing element and on microcontroller-based signal processing hardware. The physical principle behind its operation is briefly reviewed, and its application to power transformer hot-spot temperature measurement is reported. Laboratory experimental results are given for both sensor characterization and measurements carried out on a 25-kVA oil-cooled power transformer

Keywords

condition monitoring; fibre optic sensors; power transformer testing; temperature measurement; temperature sensors; 25 kVA; fiber-optic temperature sensor system; fluid temperature measurements; microcontroller-based signal processing hardware; oil-cooled power transformer; power transformer monitoring; sensor characterization; transformer hot-spot temperature measurement; Aging; Electromagnetic measurements; Monitoring; Oil insulation; Optical fiber sensors; Power transformer insulation; Power transformers; Sensor phenomena and characterization; Temperature measurement; Temperature sensors;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.963173

Filename

963173