Determination of the optimum routine test and self-checking intervals in protective relaying using a reliability model

被引:52
作者
Billinton, R [1 ]
Fotuhi-Firuzabad, M [1 ]
Sidhu, TS [1 ]
机构
[1] Univ Saskatchewan, Dept Elect Engn, Power Syst Res Grp, Saskatoon, SK S7N 5A9, Canada
关键词
monitoring; relaying system; reliability; routine test; self-checking;
D O I
10.1109/TPWRS.2002.800871
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Relaying reliability Is generally separated into the two different aspects of dependability and security. The reliability of a protection relay can be improved by carrying out routine maintenance or by including built-in monitoring and self-checking facilities during the design stages. A Markov model is described in this paper which can be used to examine these features. The model also recognizes common-cause failures, temporary and permanent faults and the associated clearing times, operation of back-up protection, and relay oral-trips. Studies have been conducted to illustrate the expected reliability benefits by inclusion of monitoring and self-checking facilities within the relay.
引用
收藏
页码:663 / 669
页数:7
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