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Fault location in the outer sheath of power cables

Fault location in the outer sheath of power cables
Fault location in the outer sheath of power cables
With the development of power systems in recent years, the total amount of power cables in operation has increased greatly, and there are growing reports of cable failure. Cable failures may be due to various intrinsic or extrinsic factors and can lead to massive economic loss. With regard to high-voltage cables, such as 110 kV power cables, there are very few accurate reports on the actual fault observed. This article first analyses the possible causes of power cable outer sheath failure. It then introduces the bridge and step voltage methods, which are traditionally used for cable fault locating, and describes a new method for accurate fault locating in 110 kV cables, which uses the bridge method to pre-locate the fault and then the step voltage method to accurately determine the precise fault locating. Field testing confirms the applicability of the new method for accurate fault locating in 110 kV power cables. The results shown in this article may provide a good reference for the development of future research in related fields
2083-4187
250-258
Wang, Qian
a9a64412-49cc-4ab7-9bb6-646551219d66
Tang, Chao
dcd2c9bd-9fa4-4b23-bb5b-b0295aaba4cf
Wu, Gaolin
f3c6c771-b591-41df-a1b5-4cab09f41719
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819
Wang, Qian
a9a64412-49cc-4ab7-9bb6-646551219d66
Tang, Chao
dcd2c9bd-9fa4-4b23-bb5b-b0295aaba4cf
Wu, Gaolin
f3c6c771-b591-41df-a1b5-4cab09f41719
Chen, G.
3de45a9c-6c9a-4bcb-90c3-d7e26be21819

Wang, Qian, Tang, Chao, Wu, Gaolin and Chen, G. (2014) Fault location in the outer sheath of power cables. Journal of Power Technologies, 94 (4), 250-258.

Record type: Article

Abstract

With the development of power systems in recent years, the total amount of power cables in operation has increased greatly, and there are growing reports of cable failure. Cable failures may be due to various intrinsic or extrinsic factors and can lead to massive economic loss. With regard to high-voltage cables, such as 110 kV power cables, there are very few accurate reports on the actual fault observed. This article first analyses the possible causes of power cable outer sheath failure. It then introduces the bridge and step voltage methods, which are traditionally used for cable fault locating, and describes a new method for accurate fault locating in 110 kV cables, which uses the bridge method to pre-locate the fault and then the step voltage method to accurately determine the precise fault locating. Field testing confirms the applicability of the new method for accurate fault locating in 110 kV power cables. The results shown in this article may provide a good reference for the development of future research in related fields

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Published date: 2014
Organisations: EEE

Identifiers

Local EPrints ID: 380069
URI: http://eprints.soton.ac.uk/id/eprint/380069
ISSN: 2083-4187
PURE UUID: 08242c66-0ce5-4bea-9bb4-a27646f2b17f

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Date deposited: 03 Sep 2015 08:55
Last modified: 17 Jul 2017 20:38

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Contributors

Author: Qian Wang
Author: Chao Tang
Author: Gaolin Wu
Author: G. Chen

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