The University of Southampton
University of Southampton Institutional Repository

Ageing of High Voltage Cable Insulation

Ageing of High Voltage Cable Insulation
Ageing of High Voltage Cable Insulation
There is great interest in understanding the ageing and degradation of electrical insulation in an effort to improve its lifetime and efficiency. This paper investigates the affect artificial ageing by ultraviolet (UV) irradiation has on the charge movement in 100 ?m low density polyethylene (LDPE) films. Ageing takes place under a 254nm, 36W, fluorescent tube, in 3 and 7 day intervals up to a total of 17 days. Chemical changes are analyzed using Fourier transform infrared (FTIR) spectroscopy to investigate oxidation products. Samples are boiled in xylene to investigate changes in cross linking due to the UV ageing. The electrical properties are analyzed in terms of electrical strength, relative permittivity, dielectric loss and charge movement. Charge movement is investigated through space charge profiles using the pulsed electro-acoustic (PEA) technique. The emission of a faint light, known as electroluminescence (EL) is also investigated to interpret charge movement near the electrodepolymer interface. Results suggest that increases in oxidation products result in the easier conduction and recombination of charge carriers due to the carbonyl and hydroxyl groups, supported by a reduced EL emission. Space charge measurements suggest increased quantity of deep trapping sites due to slow charge decay.
978-1-4577-0276-1
438-442
Mills, D H
833beedc-68ae-4c5b-8939-47c8644a53ba
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Mills, D H
833beedc-68ae-4c5b-8939-47c8644a53ba
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

Mills, D H, Lewin, P L and Chen, G (2011) Ageing of High Voltage Cable Insulation. IEEE 2011 Electrical Insulation Conference, Annapolis, Maryland, United States. 04 - 07 Jun 2011. pp. 438-442 .

Record type: Conference or Workshop Item (Paper)

Abstract

There is great interest in understanding the ageing and degradation of electrical insulation in an effort to improve its lifetime and efficiency. This paper investigates the affect artificial ageing by ultraviolet (UV) irradiation has on the charge movement in 100 ?m low density polyethylene (LDPE) films. Ageing takes place under a 254nm, 36W, fluorescent tube, in 3 and 7 day intervals up to a total of 17 days. Chemical changes are analyzed using Fourier transform infrared (FTIR) spectroscopy to investigate oxidation products. Samples are boiled in xylene to investigate changes in cross linking due to the UV ageing. The electrical properties are analyzed in terms of electrical strength, relative permittivity, dielectric loss and charge movement. Charge movement is investigated through space charge profiles using the pulsed electro-acoustic (PEA) technique. The emission of a faint light, known as electroluminescence (EL) is also investigated to interpret charge movement near the electrodepolymer interface. Results suggest that increases in oxidation products result in the easier conduction and recombination of charge carriers due to the carbonyl and hydroxyl groups, supported by a reduced EL emission. Space charge measurements suggest increased quantity of deep trapping sites due to slow charge decay.

Text
091.pdf - Version of Record
Restricted to Registered users only
Download (350kB)
Request a copy

More information

Published date: 5 June 2011
Additional Information: Event Dates: 5 - 8 June 2011
Venue - Dates: IEEE 2011 Electrical Insulation Conference, Annapolis, Maryland, United States, 2011-06-04 - 2011-06-07
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 272422
URI: http://eprints.soton.ac.uk/id/eprint/272422
ISBN: 978-1-4577-0276-1
PURE UUID: 5b7bb219-560a-490b-8a51-a27bd3c21fcf

Catalogue record

Date deposited: 07 Jun 2011 12:41
Last modified: 06 Oct 2020 23:21

Export record

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

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.

×