NDLI: Partial discharge testing of subsea insulation materials development of testing methods

Content Provider	IEEE Xplore Digital Library
Author	Kvien, O. Berg, G. Holto, J.
Copyright Year	2008
Description	Author affiliation: SINTEF Energy Res., Trondheim (Kvien, O.; Berg, G.; Holto, J.)
Abstract	Subsea installations on the sea bed at great depth require insulation materials with high reliability. Failures of such installations introduce difficult maintenance and high costs. This involves the need of reliable (insulation) materials and testing of such. The purpose of our activity is to build a test facility that can test both well-known and new insulation material samples as well as high voltage systems and apparatus. The qualification methods are based on existing international standards, with the aim of proposing and qualifying new QA and FAT tests for the subsea service environment. This paper presents some of the tests we have carried out on insulation materials. The experiments showed that the atmosphere is important; humidity introduces the risk of build up of a connection (solid bridge) between the electrode and insulation surface. High pressure reduces the area exposed to surface discharges and thereby increases the wear of the surface on that smaller area.
Starting Page	330
Ending Page	333
File Size	212759
Page Count	4
File Format	PDF
ISBN	9784886860057
DOI	10.1109/ISEIM.2008.4664565
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-09-07
Publisher Place	Japan
Access Restriction	Subscribed
Rights Holder	The Institute of Electrical Engineers of Japan
Subject Keyword	Electrodes Insulation Discharges Materials Humidity Surface discharges Partial discharges
Content Type	Text
Resource Type	Article

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