Central or Local Compensation of Earth-Fault Currents in Non-Effectively Earthed Distribution Systems

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceeding


Centralized Petersen coil earthing in networks with
extensive use of underground cable involves flow of large
quantities of reactive earth fault current. In networks with long
radial cable feeders this creates problems involving active losses
and active and reactive earth fault current. One possible solution
to the problem is the use of local compensation. This paper aims
at understanding the limitations of traditionally compensated
networks and compares these to networks that are locally
compensated. This is done through analytical calculations and
PSCAD simulations that are combined with results from a
project studying cables in Swedish distribution networks. In
addition, basic PSCAD simulations are used to clarify how the
rating and placing of the distributed compensation units affects
active earth fault current and investment costs


Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Other Electrical Engineering, Electronic Engineering, Information Engineering


  • Inductor compensateddistribution lines, Fault current, Power cables, Power transformers, Power distribution planning
Original languageEnglish
Title of host publication2007 IEEE LAUSANNE POWERTECH, VOLS 1-5
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
ISBN (Print)978-1-4244-2189-3
Publication statusPublished - 2007
Publication categoryResearch
EventPower Tech 2007 - Lausanne, Switzerland
Duration: 2007 Jul 12007 Jul 5


ConferencePower Tech 2007