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