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

Publiceringsår: 2007
Språk: Engelska
Sidor: 1129-1134
Publikation/Tidskrift/Serie: 2007 IEEE LAUSANNE POWERTECH, VOLS 1-5
Dokumenttyp: Konferensbidrag
Förlag: IEEE


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



  • Other Electrical Engineering, Electronic Engineering, Information Engineering
  • Inductor compensated distribution lines
  • Fault current
  • Power cables
  • Power transformers
  • Power distribution planning


Power Tech 2007
1-5 July, 2007
Lausanne, Switzerland
  • ISBN: 978-1-4244-2189-3

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