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

Författare:
Publiceringsår: 2007
Språk: Engelska
Sidor: 1129-1134
Publikation/Tidskrift/Serie: 2007 IEEE LAUSANNE POWERTECH, VOLS 1-5
Dokumenttyp: Konferensbidrag
Förlag: IEEE--Institute of Electrical and Electronics Engineers Inc.

Sammanfattning

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

Nyckelord

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

Övriga

Power Tech 2007
Published
  • ISBN: 978-1-4244-2189-3

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