Lightning Impulse Ageing of HV Cable Insulation

Dao, N L, Lewin, P L and Swingler, S G (2009) Lightning Impulse Ageing of HV Cable Insulation. In, 16th International Symposium on High Voltage Engineering, Cape Town, South Africa, 24 - 28 Aug 2009. SAIEE, Innes House, Johannesburg, 562-565.

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Description/Abstract

Lightning impulses can lead to accelerated ageing of extruded cables. Electrical behaviour of a dielectric material when experiencing a lightning impulse is different to that for DC or power frequency applied voltages. Pre-designed shaped HDPE material samples have been manufactured using a mould tool. The samples then have been electrically aged using an impulse generator. A real-time 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 Weibull distribution to identify any differences in lifetime between aged and unaged samples. Measurements of dielectric loss and space charge were also undertaken to identify the impulse ageing mechanism.

Item Type:	Conference or Workshop Item (Paper)
Additional Information:	Event Dates: 24-28 August 2009
ISBNs:	9780620445856
Divisions:	Faculty of Physical and Applied Science > Electronics and Computer Science Faculty of Physical and Applied Science > Electronics and Computer Science > EEE
Item ID:	267819
Date Deposited:	02 Sep 2009 13:45
Last Modified:	02 Mar 2012 13:42
Contributors:	Dao, N L (Author) Lewin, P L (Author) Swingler, S G (Author)
Date:	24 August 2009
Additional Information:	Event Dates: 24-28 August 2009
Status:	Published
Publisher:	SAIEE, Innes House, Johannesburg
Contact Email Address:	pll@ecs.soton.ac.uk
Further Information:	Google Scholar
URI:	http://eprints.soton.ac.uk/id/eprint/267819

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