Potential Criteria for Evaluating Maintenance Strategies in the Power System

Choosing a maintenance strategy is a complex decision and it involves careful consideration of various criteria and balancing different priorities because maintenance strategies act different and power system equipment are distinct. In this paper, the authors present the results of a comprehensive literature review on potential criteria that can be used in multi-criteria evaluation and ranking of maintenance strategies for power system equipment. The literature review was done to identify criteria that can be considered to evaluate maintenance strategies in the power system. The approach was to group criteria that are relevant to any power system equipment and exclude the ones that are incompatible with any power system equipment. The review identified a group of such criteria including criteria of safety, cost, added value, feasibility, production loss, and level of suitability of maintenance action. Another group comprises of technical issues that include availability of spare sparts, personnel resources, ease of execution, failure severity, component state, maintenance time, flexibility, cost of energy consumption, stability of power supply, reduced process failure, reliability level, technical acceptance, and prioritisation. The remaining set is regulation compliance, environmental issues, organisational, administrative issues, quality issues, impact on activity, policies support and delivery.