Precise analysis of power swing effects on distance relay zones

H. Abniki, A. Salah Esfahani, R. Razzaghi, M. T. Nabavi Razavi

Research output: Chapter in Book/Report/Conference proceedingConference PaperOtherpeer-review

3 Citations (Scopus)


Fault occurrence and abnormal system condition are inevitable in power systems. To reduce the results of the mentioned conditions such damaged equipment or in the worst case, power system instability, it is required to do necessary tasks. One of the most important protection methods for this goal is distance protection. Due to mal-operation of distance relay, power system might be damaged. This paper briefly investigates the concept of the distance relay and then, power swing equations of power system are studied. Finally, the effects of power swing on distance relay zones are investigated using EMTDC software. Extended simulations were performed using different cases in different protection zones.

Original languageEnglish
Title of host publication2010 9th International Power and Energy Conference, IPEC 2010
Number of pages5
Publication statusPublished - 1 Dec 2010
Externally publishedYes
EventInternational Power Electronics Conference (IPEC-ECCE-ASIA) 2010 - Sapporo, Japan
Duration: 21 Jun 201024 Jun 2010


ConferenceInternational Power Electronics Conference (IPEC-ECCE-ASIA) 2010
Abbreviated titleIPEC-ECCE-ASIA 2010


  • Distance relay
  • Measured impedance
  • Power swing
  • Protective zone

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