A novel smart high-voltage circuit breaker for smart grid applications

Jun Liu, Garng M. Huang, Zhiying Ma, Yingsan Geng

Research output: Contribution to journalArticle

21 Citations (Scopus)


In this paper, we propose a new intelligent operation concept for high-voltage SF6 gas circuit breakers, in which the moving contacts are self-adaptively controlled from one position to an adjacent position to improve the circuit breaker life cycles. To analyze the concept intelligent operation, a new model of high-voltage SF6 gas circuit breaker is developed, and the moving characteristics of the new type circuit breaker are computed based on the newly designed model. Then both mechanical and electrical wears are quantitatively analyzed according to the breaker's new moving characteristic. Finally, we demonstrate the life cycle improvement of the new type of high-voltage SF6 gas circuit breaker. Our analysis can also be used to estimate the remaining life cycle of a breaker based on the tallied data collected by our intelligent modules.

Original languageEnglish
Article number5765716
Pages (from-to)254-264
Number of pages11
JournalIEEE Transactions on Smart Grid
Issue number2
Publication statusPublished - 1 Jun 2011



  • Electrical wear
  • high-voltage SF gas circuit breaker
  • intelligent operation
  • mechanical wear
  • phase control technology
  • reliability

ASJC Scopus subject areas

  • Computer Science(all)

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