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Lightning Impulse Ageing of HDPE

Lightning Impulse Ageing of HDPE
Lightning Impulse Ageing of HDPE
This work is concerned with the hypothesis that lightning impulses can lead to accelerated ageing of extruded polymeric cables. The behaviour of an insulation material when suffering lightning impulses is different from that for DC or power frequency over-voltages. Shaped HDPE material samples have been manufactured using a mould tool. The samples then may be electrically aged using one of the Tony Davies High Voltage Laboratory's impulse generators. A realtime software based monitoring tool has been designed to control the impulse wave-shape and process the measurement data. Sets of identical lightning impulses were applied to samples and this was then followed by ramped AC breakdown tests. The obtained results were analyzed using the Weibull distribution method to identify the difference in lifetime. These results will inform the further development of models describing the multifactor ageing mechanisms that inservice cables experience.
37-40
Dao, N L
747dde4f-7c71-46cb-b9dd-0ceb36a38688
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Swingler, S G
4f13fbb2-7d2e-480a-8687-acea6a4ed735
Dao, N L
747dde4f-7c71-46cb-b9dd-0ceb36a38688
Lewin, P L
78b4fc49-1cb3-4db9-ba90-3ae70c0f639e
Swingler, S G
4f13fbb2-7d2e-480a-8687-acea6a4ed735

Dao, N L, Lewin, P L and Swingler, S G (2009) Lightning Impulse Ageing of HDPE. 2nd UHVnet Colloquium on High Voltage Measurement and Insulation Research, United Kingdom. pp. 37-40 .

Record type: Conference or Workshop Item (Paper)

Abstract

This work is concerned with the hypothesis that lightning impulses can lead to accelerated ageing of extruded polymeric cables. The behaviour of an insulation material when suffering lightning impulses is different from that for DC or power frequency over-voltages. Shaped HDPE material samples have been manufactured using a mould tool. The samples then may be electrically aged using one of the Tony Davies High Voltage Laboratory's impulse generators. A realtime software based monitoring tool has been designed to control the impulse wave-shape and process the measurement data. Sets of identical lightning impulses were applied to samples and this was then followed by ramped AC breakdown tests. The obtained results were analyzed using the Weibull distribution method to identify the difference in lifetime. These results will inform the further development of models describing the multifactor ageing mechanisms that inservice cables experience.

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UHV_paper_Long.pdf - Accepted Manuscript
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More information

Published date: 21 January 2009
Additional Information: Event Dates: 21 January
Venue - Dates: 2nd UHVnet Colloquium on High Voltage Measurement and Insulation Research, United Kingdom, 2009-01-21
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 267056
URI: https://eprints.soton.ac.uk/id/eprint/267056
PURE UUID: 2d5a04b1-2e9e-459a-95ae-cf44b54b11aa

Catalogue record

Date deposited: 23 Jan 2009 14:22
Last modified: 18 Jul 2017 07:08

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Contributors

Author: N L Dao
Author: P L Lewin
Author: S G Swingler

University divisions

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