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Proceedings Paper

Thermal diagnosis of medium-voltage switchboard: a cost-effective solution based on a multipoint optical sensor
Author(s): Vincent Minier; J. L. Lovato; Dominique Persegol
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Paper Abstract

We have developed an optical temperature sensor aimed at early detecting faults in Medium Voltage substations. The advantage of the sensor lies in its full suitability for the target application, which allows it to reach a cost compatible with the service rendered. Heavily doped ruby has shown to be attractive (fluorescence efficiency, cost) but also revealed a multi-fluorescence lifetime behavior. Accuracy of +/- 2 degree(s)C has been achieved over the -20 degree(s)C/+120 degree(s)C range for a 12 point sensor. We hope this system opens up interesting prospects in the field of thermal diagnosis, beyond its application in electric power industry.

Paper Details

Date Published: 31 August 2000
PDF: 9 pages
Proc. SPIE 4074, Applications of Optical Fiber Sensors, (31 August 2000); doi: 10.1117/12.397882
Show Author Affiliations
Vincent Minier, Groupement d'Electromagnetisme Experimental et d'Optoelectronique (France)
J. L. Lovato, Groupement d'Electromagnetisme Experimental et d'Optoelectronique (France)
Dominique Persegol, Groupement d'Electromagnetisme Experimental et d'Optoelectronique (France)

Published in SPIE Proceedings Vol. 4074:
Applications of Optical Fiber Sensors
Alan J. Rogers, Editor(s)

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