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Reliability estimation of high voltage SF6 circuit breakers by statistical analysis on the basis of the field data

Research output: Contribution to journalArticleResearchpeer review

Authors

  • X. Zhang
  • Ernst Gockenbach
  • Zhaolin Liu
  • Haibo Chen

External Research Organisations

  • East China Grid (ECGC)
  • East China Electrical Test and Research Institute
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    • Citation Indexes: 45
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Details

Original languageEnglish
Pages (from-to)105-113
Number of pages9
JournalElectric power systems research
Volume103
Early online date14 Jun 2013
Publication statusE-pub ahead of print - 14 Jun 2013

Abstract

In order to estimate the reliability of high voltage SF6 circuit breakers, it is necessary to develop a statistical approach which can provide the failure probability, the failure rate and the remaining lifetime for the equipment and components. Useful information about the failure occurrences of 550 kV SF6 circuit breakers is collected from the East China Grid with the operating history. Even if the statistical survey is linked to data records of the unfailed components and maintenance measures, the statistical approach can accurately estimate the reliability of the components assembled in the circuit breakers. It is demonstrated by individual characteristics of 550 kV SF6 circuit breakers such as N2 leakage, SF6 leakage, overheat of primary terminal and defect of protection- and control system, etc. that the statistical approach is able to assess the reliability of equipment and components with reasonable and accurate results.

Keywords

    Circuit breaker, Failure probability, Failure rate, Lifetime, Statistical analysis

ASJC Scopus subject areas

Cite this

Reliability estimation of high voltage SF6 circuit breakers by statistical analysis on the basis of the field data. / Zhang, X.; Gockenbach, Ernst; Liu, Zhaolin et al.
In: Electric power systems research, Vol. 103, 14.06.2013, p. 105-113.

Research output: Contribution to journalArticleResearchpeer review

Zhang X, Gockenbach E, Liu Z, Chen H, Yang L. Reliability estimation of high voltage SF6 circuit breakers by statistical analysis on the basis of the field data. Electric power systems research. 2013 Jun 14;103:105-113. Epub 2013 Jun 14. doi: 10.1016/j.epsr.2013.04.014
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abstract = "In order to estimate the reliability of high voltage SF6 circuit breakers, it is necessary to develop a statistical approach which can provide the failure probability, the failure rate and the remaining lifetime for the equipment and components. Useful information about the failure occurrences of 550 kV SF6 circuit breakers is collected from the East China Grid with the operating history. Even if the statistical survey is linked to data records of the unfailed components and maintenance measures, the statistical approach can accurately estimate the reliability of the components assembled in the circuit breakers. It is demonstrated by individual characteristics of 550 kV SF6 circuit breakers such as N2 leakage, SF6 leakage, overheat of primary terminal and defect of protection- and control system, etc. that the statistical approach is able to assess the reliability of equipment and components with reasonable and accurate results.",
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AU - Yang, Linghui

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AB - In order to estimate the reliability of high voltage SF6 circuit breakers, it is necessary to develop a statistical approach which can provide the failure probability, the failure rate and the remaining lifetime for the equipment and components. Useful information about the failure occurrences of 550 kV SF6 circuit breakers is collected from the East China Grid with the operating history. Even if the statistical survey is linked to data records of the unfailed components and maintenance measures, the statistical approach can accurately estimate the reliability of the components assembled in the circuit breakers. It is demonstrated by individual characteristics of 550 kV SF6 circuit breakers such as N2 leakage, SF6 leakage, overheat of primary terminal and defect of protection- and control system, etc. that the statistical approach is able to assess the reliability of equipment and components with reasonable and accurate results.

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