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A cost-effective approach of prioritizing distribution maintenance based on system reliability

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2 Author(s)
Fangxing Li ; ABB Inc., Raleigh, NC, USA ; Brown, R.E.

This research work presents a new approach to prioritize distribution maintenance activities based on system reliability and cost-effectiveness. The objective of this approach is to minimize the weighted average system reliability index (WASRI) by ranking maintenance tasks based on their marginal benefit-to-cost ratios, where the benefit is defined as improvement in WASRI. Estimations of WASRI improvement are obtained by utilizing the linear relationship between the benefit obtained from a maintenance task and the change of failure rate of the maintained component.

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Power Delivery, IEEE Transactions on  (Volume:19 ,  Issue: 1 )