Fault location for single-circuit line based on bus-impedance matrix utilizing voltage measurements

Research output: Contribution to journalArticlepeer-review

122 Scopus citations


Diverse transmission line fault location algorithms have been proposed in the past depending on measurements available. Existing algorithms usually require measurements captured from buses of a faulted line. By taking advantage of the bus-impedance matrix technique, this paper presents a possible fault location approach for single-circuit lines utilizing only voltage measurements from one or two buses, which may be distant from the faulted line. With the addition of a fictitious bus where the fault occurs, the transfer impedances of this bus and other buses are revealed as a function of the fault location. Based on the relationship between the bus voltage change due to fault and the transfer impedance, the fault location can be derived. Shunt capacitance of the line is ignored first and then fully considered based on distributed parameter line model. ElectroMagnetic Transients Program simulation studies have shown quite encouraging results.

Original languageEnglish
Pages (from-to)609-617
Number of pages9
JournalIEEE Transactions on Power Delivery
Issue number2
StatePublished - Apr 2008


  • Bus-impedance matrix
  • Distributed parameter line model
  • Fault location
  • Single-circuit transmission line

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


Dive into the research topics of 'Fault location for single-circuit line based on bus-impedance matrix utilizing voltage measurements'. Together they form a unique fingerprint.

Cite this