Sheath current characteristic and its reduction on underground power cable systems

C. K. Jung*, J. B. Lee, J. W. Kang, X. H. Wang, Y. H. Song

*Corresponding author for this work

Research output: Chapter in Book or Report/Conference proceedingConference Proceedingpeer-review

28 Citations (Scopus)

Abstract

Sheath current causes the sheath loss and can reduce the permissible current of the power cable transmission system. High sheath current is usually caused by the mixed burying formation of the cable, different length between sections, poor connection of the bonding leads, and connection of distribution cable on the transmission system. This paper analyses the characteristics of the sheath circulating current at various conditions and presents a useful method to reduce the sheath current in a mixed buying formation system. It can effectively reduce the current by up to 90%. The method is validated by the practical measurements and simulation using ATP, and also adopted in actual system. In addition, a special equipment is designed in this paper to measure and analyze the sheath circulating current. It can measure and analyze nine currents at a single time.

Original languageEnglish
Title of host publication2005 IEEE Power Engineering Society General Meeting
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages2562-2569
Number of pages8
ISBN (Print)078039156X, 9780780391567
Publication statusPublished - 2005
Externally publishedYes
Event2005 IEEE Power Engineering Society General Meeting - San Francisco, CA, United States
Duration: 12 Jun 200516 Jun 2005

Publication series

Name2005 IEEE Power Engineering Society General Meeting
Volume3

Conference

Conference2005 IEEE Power Engineering Society General Meeting
Country/TerritoryUnited States
CitySan Francisco, CA
Period12/06/0516/06/05

Keywords

  • Sheath circulating current
  • Sheath current reduction
  • Underground power cable

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