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Journal of Sensors
Volume 2009, Article ID 608714, 5 pages
Research Article

Ozone Sensor for Application in Medium Voltage Switchboard

Transmission and Distribution Department, ERSE, via Rubattino 54, 20134 Milan, Italy

Received 30 December 2008; Revised 30 April 2009; Accepted 6 May 2009

Academic Editor: Yongxiang Li

Copyright © 2009 Letizia De Maria and Giuseppe Rizzi. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The application of a new spectroscopic type fiber sensor for ozone detection in electrical components of Medium Voltage (MV) network is evaluated. The sensor layout is based on the use of an optical retroreflector, to improve the detection sensitivity, and it was especially designed for detecting in situ rapid changes of ozone concentration. Preliminary tests were performed in a typical MV switchboard. Artificial defects simulated predischarge phenomena arising during real operating conditions. Results are discussed by a comparison with data simultaneously acquired with a standard partial discharge system.