Advanced fault location technique for parallel power transmission lines

Ning Kang, Yuan Liao

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

2 Scopus citations


This article presents a general approach for locating any type of short circuit faults on a double-circuit transmission line. By making use of the bus impedance matrix technique, voltage measurements at one or two buses are utilized as inputs, which may be distant from the faulted section. The bus impedance matrix of each sequence network with addition of a fictitious bus at the fault point can be constructed as a function of fault location by drawing on network analysis. Fault location can then be obtained based on bus impedance matrix and boundary conditions of different fault types. It is assumed that the network data are available. Quite accurate results have been achieved based on simulation studies.

Original languageEnglish
Title of host publicationElectric Power Systems in Transition
Number of pages16
StatePublished - 2010

ASJC Scopus subject areas

  • General Engineering


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