Details
Original language | English |
---|---|
Pages (from-to) | 105-113 |
Number of pages | 9 |
Journal | Electric power systems research |
Volume | 103 |
Early online date | 14 Jun 2013 |
Publication status | E-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
- Energy(all)
- Energy Engineering and Power Technology
- Engineering(all)
- Electrical and Electronic Engineering
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In: Electric power systems research, Vol. 103, 14.06.2013, p. 105-113.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Reliability estimation of high voltage SF6 circuit breakers by statistical analysis on the basis of the field data
AU - Zhang, X.
AU - Gockenbach, Ernst
AU - Liu, Zhaolin
AU - Chen, Haibo
AU - Yang, Linghui
N1 - Funding information: The authors thank G. Johannesson for valuable discussions about source inversion, and Livermore Computing for providing computational resources through an institutional allocation for the Monte Carlo simulations. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344 and was funded by Laboratory Directed Research and Development at LLNL under project tracking code PLS-14ERD006. The manuscript is released under UCRL number LLNL-JRNL-676479.
PY - 2013/6/14
Y1 - 2013/6/14
N2 - 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.
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.
KW - Circuit breaker
KW - Failure probability
KW - Failure rate
KW - Lifetime
KW - Statistical analysis
UR - http://www.scopus.com/inward/record.url?scp=84879072605&partnerID=8YFLogxK
U2 - 10.1016/j.epsr.2013.04.014
DO - 10.1016/j.epsr.2013.04.014
M3 - Article
AN - SCOPUS:84879072605
VL - 103
SP - 105
EP - 113
JO - Electric power systems research
JF - Electric power systems research
SN - 0378-7796
ER -