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Effect of semiconducting screen on the space charge dynamic in xlpe and polyolefin insulation under dc and 50Hz ac electric stresses conditions

Effect of semiconducting screen on the space charge dynamic in xlpe and polyolefin insulation under dc and 50Hz ac electric stresses conditions
Effect of semiconducting screen on the space charge dynamic in xlpe and polyolefin insulation under dc and 50Hz ac electric stresses conditions
In the past two decades, significant advances in space charge measurements in polymers have resulted in a better understanding of charge dynamics and their effect on material selection and processing. However, little attention has been given to the effect of semiconducting screens on space charge formation in the bulk insulation. This paper reports on space charge measurements on ~1.5 mm thick XLPE and polyolefinic plaques with different treatments and semicon electrodes, using the modified laser induced pressure propagation (LIPP) system. Samples were subjected to dc or 50 Hz ac electric stresses in the region of 25 kV/mm at ambient temperature. Emphasis has been placed on comparing the space charge characteristics of the two insulation systems with the different semicon electrodes using an established method termed “X-plots” for analysing data. The effects of sample treatment (i.e. degassing) on the space charge dynamics are also presented.
semiconducting screen, space charge dynamics, XLPE, polyolefin, insulation, power cables
1070-9878
393-403
Ho, Y F F
d4320db9-0f48-4e59-be44-f757ead10967
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Davies, A E
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Swingler, S G
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Sutton, Simon
571c7136-1eb6-44e1-8979-ca0829469a6b
Hampton, R N
e9ec4059-108d-4aaa-8fb1-364b9c899764
Ho, Y F F
d4320db9-0f48-4e59-be44-f757ead10967
Chen, G
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Davies, A E
56d95222-b259-494a-92e9-68b090ec0dcd
Swingler, S G
f9fbe599-7685-46e8-9f11-55cbd40e2933
Sutton, Simon
571c7136-1eb6-44e1-8979-ca0829469a6b
Hampton, R N
e9ec4059-108d-4aaa-8fb1-364b9c899764

Ho, Y F F, Chen, G, Davies, A E, Swingler, S G, Sutton, Simon and Hampton, R N (2003) Effect of semiconducting screen on the space charge dynamic in xlpe and polyolefin insulation under dc and 50Hz ac electric stresses conditions. IEEE Transactions on Dielectrics & Electrical Insulation, Vol. 1 (No. 3), 393-403.

Record type: Article

Abstract

In the past two decades, significant advances in space charge measurements in polymers have resulted in a better understanding of charge dynamics and their effect on material selection and processing. However, little attention has been given to the effect of semiconducting screens on space charge formation in the bulk insulation. This paper reports on space charge measurements on ~1.5 mm thick XLPE and polyolefinic plaques with different treatments and semicon electrodes, using the modified laser induced pressure propagation (LIPP) system. Samples were subjected to dc or 50 Hz ac electric stresses in the region of 25 kV/mm at ambient temperature. Emphasis has been placed on comparing the space charge characteristics of the two insulation systems with the different semicon electrodes using an established method termed “X-plots” for analysing data. The effects of sample treatment (i.e. degassing) on the space charge dynamics are also presented.

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Published date: June 2003
Keywords: semiconducting screen, space charge dynamics, XLPE, polyolefin, insulation, power cables
Organisations: Electronics & Computer Science, EEE

Identifiers

Local EPrints ID: 260270
URI: http://eprints.soton.ac.uk/id/eprint/260270
ISSN: 1070-9878
PURE UUID: 6ea71a94-4b07-4b2a-b139-98c56674115f

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Date deposited: 14 Jan 2005
Last modified: 23 Sep 2020 16:35

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