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Application of the Time-varying Outage Model of electric transmission and transformation equipment in Condition-based Maintenance

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6 Author(s)
Liaoyi Ning ; Technical Economic Advisory Research Center of Liaoning Electric Power Company Limited, Shenyang, China ; Jian Liu ; Chenghao Quan ; Fang Shen
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Condition-Based Maintenance (CBM) of the electric transmission and transformation equipments has been carried out gradually in the State Grid Corporation of China (SGCC). Equipments' risk assessment is a challenging work during implementing CBM, because the failure probabilities of equipments may vary with changes in the operating conditions, and hard to predict accurately. In this paper, the Time-Varying Outage Model (TVOM) of equipments is applied in the risk assessment to solve the above difficults. To demonstrate the necessity and efficiency of the TVOM, a numeral test on transformer was given to compare the result of the statutory method in SGCC standard and that of the time-varying outage model.

Published in:

IEEE PES Innovative Smart Grid Technologies

Date of Conference:

21-24 May 2012