Risk Assessment of Power Transformer Life Cycle Cost Based on Analytical Hierarchy Process

Transformer life cycle cost risk was analyzed systematically and scientifically. Risk evaluation index system of the transformer life cycle cost was established based on AHP(Analytical Hierarchy Process). The 1-9 scale of the risk indicators was used to determine the weight of the evaluation index system, thus the combination of expert experience with quantitative and qualitative evaluation results are realized. Application results show that the method have practicality and effectiveness and has theoretical and practical significance for proposed effective cost risk optimization and control strategies for cost risk factors to minimize the risk of transformer life cycle cost.