The University of Southampton
University of Southampton Institutional Repository

A new approach to the study of surface discharge on the oil-pressboard interface

Record type: Conference or Workshop Item (Paper)

The materials used as the dielectric media of choice in large transformers continue to be a combination of pressboard and mineral oil. These materials offer a cost effective solution and are backed by a historical knowledge base of performance data and lifetime characteristics. A proven method to prevent inter-phase flashover is to use successive layers of pressboard and oil gaps. However, a number of failures in the field have been attributed to surface discharge or creeping discharge over the pressboard surface. This paper reports on an experiment to study surface discharge on pressboard in oil. A new technique for the generation of repeatable surface discharge is outlined. The paper explains the differences between surface tracking, and surface flash-over. The results indicate that the tracking is the result of surface discharge and that surface discharge and surface flash-over are two distinct phenomena.

PDF Mitchinsonicdl.pdf - Version of Record
Restricted to Registered users only
Download (1MB)

Citation

Mitchinson, P M, Lewin, P L, Chen, George and Jarman, P N (2008) A new approach to the study of surface discharge on the oil-pressboard interface At 16th IEEE International Conference on Dielectric Liquids, ICDL 2008, France. 30 Jun - 03 Jul 2008. , pp. 186-189.

More information

Published date: 30 June 2008
Additional Information: Event Dates: 30 June - 3 July, 2008
Venue - Dates: 16th IEEE International Conference on Dielectric Liquids, ICDL 2008, France, 2008-06-30 - 2008-07-03
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 266067
URI: http://eprints.soton.ac.uk/id/eprint/266067
ISBN: 978-1-4244-1586-1
PURE UUID: d68fd2e4-516f-4fd9-886e-ce8d9e05b125

Catalogue record

Date deposited: 07 Jul 2008 12:52
Last modified: 18 Jul 2017 07:20

Export record

Contributors

Author: P M Mitchinson
Author: P L Lewin
Author: George Chen
Author: P N Jarman

University divisions


Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×