Impact of the inductive FCL on the interrupting characteristics of high-voltage CB's during out-of-phase faults

Hongshun Liu, Qingmin Li, Liang Zou, W.H. Siew

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

With respect to power systems installed with inductive fault current limiters (FCLs), the impact of an FCL on the out-of-phase fault current level was first analyzed, and thereby a method for determining the critical length of the power transmission tie lines was also given. Based on theoretical analysis and deduction, strict mathematical formulas were obtained to properly describe the relationship between the current limit factor and the recovery voltage of a circuit breaker (CB) as well as the rate of rise of recovery voltage (RRRV). Further, the concrete impacts of an FCL on the maximum and the RRRV of the recovery voltage were analyzed. Regarding out-of-phase faults, a conception of interruption severity as well as its quantitative expression for CBs was introduced, and a formula was established to incorporate the influence from the current limit factor and stray capacitance on the interruption severity of CBs, subsequently followed by detailed investigations. The aforementioned proposed research presents analytical methodology and practical reference for the parameter optimization of the inductive FCL and reliable selection of the interrupting characteristics of the high-voltage CBs.
Original languageEnglish
Pages (from-to)2177-2185
Number of pages9
JournalIEEE Transactions on Power Delivery
Volume24
Issue number4
DOIs
Publication statusPublished - Oct 2009

Keywords

  • circuit breaker (CB)
  • fault current limiter (FCL)
  • interruption severity
  • out-of-phase fault
  • recovery voltage

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