Title :
Research on Failure Risk Assessment and Maintenance Tactics of Transformer based on the Extension Engineering Method and IAHP
Author :
Xie, Qing ; Li, Yun ; Liu, Yunpeng ; Li, Yanqing ; Lv, Fangcheng
Author_Institution :
Key Lab. of Power Syst. Protection & Dynamic Security Monitoring & Control, North China Electr. Power Univ., Baoding
Abstract :
There are many failure modes of transformer, and their probability and failure severity differ from each other. Based on the statistic data and experts advice, the probability of all failure modes are calculated, and divided into 5 grades. Meanwhile, IAHP was applied to calculate the weight of the transformer failure information, and Extension evaluation method was employed to create the frame work of the severities of failure modes qualitatively and divided them into 5 grades as well. Then, risk matrix is adopted to describe risk grades of failure modes, and power transformer risk maintenance strategies are obtained.
Keywords :
maintenance engineering; power transformer protection; probability; risk management; IAHP; extension engineering method; extension evaluation method; failure risk assessment; interval analytic hierarchy process; power transformer risk maintenance; transformer failure information; Failure analysis; Maintenance; Power engineering and energy; Power system reliability; Power system security; Power transformers; Probability; Protection; Risk analysis; Risk management;
Conference_Titel :
High Voltage Engineering and Application, 2008. ICHVE 2008. International Conference on
Conference_Location :
Chongqing
Print_ISBN :
978-1-4244-3823-5
Electronic_ISBN :
978-1-4244-2810-6
DOI :
10.1109/ICHVE.2008.4774032
