Abstract
The investment in power grid equipment maintenance is not only an important guarantee for the safe operation of power grid, but also an important part of the management and control of power grid enterprises. The restriction of transmission and distribution price reform on the operation and maintenance cost of power grid enterprises has led to the increasing pressure on the capital guarantee and cost control of maintenance cost. Based on the research on the differentiated input of operation and maintenance costs for different equipment states, this paper establishes equipment risk assessment models, and uses state evaluation and failure probability statistics methods to obtain quantitative risk indicators, and combines equipment maintenance cost models and failure risks. Cost model, with the goal of minimizing the overall cost, to optimize the maintenance plan, can effectively reduce the maintenance cost of the equipment and the failure risk caused by unreasonable maintenance, so as to scientifically arrange the maintenance time and projects to obtain the optimal maintenance plan.
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