Share Email Print

Proceedings Paper

Improved fibre optic acoustic sensors for partial discharge in elastomeric insulations
Author(s): Philipp Rohwetter; Chaiyaporn Lothongkam; Wolfgang Habel; Gerd Heidmann; Daniel Pepper
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Partial discharge in elastomeric high voltage insulations is a major reason for device failure. The special challenges of the high voltage environment limit the use of conventional acoustic emission sensors. Fibre-optic sensors can cope with these challenges thanks to their optical sensing principle and the use of all-dielectric materials. In this contribution, improvements to a previously introduced design of ultrasonic fibre-optic acoustic partial discharge sensors for elastomeric insulations are presented. The improved performance of fibre-optic acoustic sensors in detecting AC partial discharge is demonstrated. Furthermore, their ability to detect low-level damage processes in elastomeric insulation under DC dielectric stress is shown to outperform the highly sensitive electrical detection method.

Paper Details

Date Published: 2 June 2014
PDF: 4 pages
Proc. SPIE 9157, 23rd International Conference on Optical Fibre Sensors, 91571J (2 June 2014); doi: 10.1117/12.2059489
Show Author Affiliations
Philipp Rohwetter, Bundesanstalt für Materialforschung und -prüfung (Germany)
Chaiyaporn Lothongkam, Bundesanstalt für Materialforschung und -prüfung (Germany)
Wolfgang Habel, Bundesanstalt für Materialforschung und -prüfung (Germany)
Gerd Heidmann, IPH GmbH (Germany)
Daniel Pepper, Beuth Hochschule für Technik Berlin (Germany)

Published in SPIE Proceedings Vol. 9157:
23rd International Conference on Optical Fibre Sensors
José M. López-Higuera; Julian D. C. Jones; Manuel López-Amo; José Luis Santos, Editor(s)

© SPIE. Terms of Use
Back to Top