A new approach for evaluating the condition of cable systems and estimation of remaining life time of MV underground power cables

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CIRED 2019 - 807.pdf (761.77 KB)

Paper number

807

Working Group Number

Conference name

CIRED 2019

Conference date

3-6 June 2019

Conference location

Madrid, Spain

Peer-reviewed

Yes

Short title

Convener

Authors

Neier, Tobias, BAUR GmbH, Austria
Bawart, Manfred, BAUR GmbH, Austria
Kim, Sung Min, KEPCO Korean Electric Power Corporation, Korea Republic of
Knauel, Jens, BAUR GmbH, Austria

Abstract

This study focuses on one of the key questions of underground distribution network operators. How can the remaining life time of underground power cables be estimated? The answer to this question is explained by a new approach of KEPCO Korea. When combining VLF Tan Delta (TD) and Partial Discharge (PD) diagnostic it is possible to identify and localize weak individual spots along a cable. After weak spots are cleared, the general aging condition of the cable can be judged and the Remaining Life Time can be estimated. The implementation of this approach in the KEPCO Distribution Networks is illustrated in a practical case study. A new tool for asset managers is available and it is expected that it will help to further develop the preventive maintenance approach by power utilities all around the world.

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Publisher

AIM

Date

2019-06-03

Published in

CIRED 2019 Conference

Permanent link to this record

https://cired-repository.org/handle/20.500.12455/156
http://dx.doi.org/10.34890/313

ISSN

2032-9644

ISBN

978-2-9602415-0-1