Detection and Localization of Defects in Cable Sheath of Cross-Bonding Configuration by Sheath Currents

被引：35

作者：

Adel Shokry, Marina ^{[1
]}

Khamlichi, Abderrahim ^{[1
]}

Garnacho, Fernando ^{[2
]}

Malo, Julio Martinez ^{[1
]}

Alvarez, Fernando ^{[1
]}

机构：

[1] Univ Politecn Madrid, E-28040 Madrid, Spain

[2] Fdn Fomento Innovac Ind, Lab Cent Oficial Electrotecnia, Madrid 28906, Spain

来源：

IEEE TRANSACTIONS ON POWER DELIVERY | 2019年 / 34卷 / 04期

基金：

欧盟地平线“2020”;

关键词：

Condition monitoring; current measurements; electric breakdown; cable shielding; sheath current; fault current; LOSSES;

D O I：

10.1109/TPWRD.2019.2903329

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Nowadays, many researchers are focusing on on-line condition monitoring of high-voltage insulated cable systems to prevent failures. With the aim of reducing the voltage induced in the cable sheaths, cross-bonding (CB) grounding cable systems are used in long distance power transmission land lines. This paper proposes a new criterion for the detection and localization of defects that might occur in the cable sheath when a CB configuration is adopted. The proposed criterion can be applied at different levels of load current. For the application of the criterion, the cable system under evaluation is modeled using the alternative transient program (ATP) software. Various practical cases were studied, showing the effectiveness of the criterion for the detection and localization of different types of defects in simulated cable systems. Furthermore, in order to validate the criteria adopted for the defect detection, based on the ATP model, a real defected case was evaluated. The results obtained proved that this criterion is suitable for the detection and localization of defects in the cable sheaths, when on-line measurements are performed in monitoring applications.

引用

页码：1401 / 1411

页数：11

共 14 条

[1]

[Anonymous], 2011, 5152011 IEEE

[2]

[Anonymous], 2014, 5752014 IEEE

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