Adaptive distance relay during voltage collapse

Ahmad Farid Bin Abidin, Azah Mohamed, Hussain Shareef

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


This paper presents a new technique to prevent the false distance relay tripping during voltage instability and voltage collapse by integrating the adaptive setting of zone 3 distance relay, rate of change of voltage (dV/dt) and voltage stability index (VSI). The existing dV dt approach is not able to differentiate between a fault and near voltage collapse condition and may initiate the false tripping signal. Therefore, a rigorous indicator, VSI is proposed as an additional relay feature to prevent such signals to be initiated. The performance of proposed technique is evaluated by comparing it with the dv/dt and the combination of dv/dt with system status indicator (SSI).

Original languageEnglish
Pages (from-to)1209-1217
Number of pages9
JournalInternational Review of Electrical Engineering
Issue number3
Publication statusPublished - 2010
Externally publishedYes


  • Adaptive setting
  • Distance relay
  • Fault
  • Voltage collapse

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


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