Modern Electric Power Substation Failure Case Histories Mitigating Strategies

摘要

A major electric utility presents case histories of corrosion failures, impacts, and corrective actions for electric power substations and distribution components based on field inspections and restoration / response activities from a dedicated team operating in Maryland. This paper will provide an overview of transmission substation structure component design / construction and corrosion risk factors, details on inspection findings / evaluations and mitigating actions, recommended actions for future integrity assessments, and recommended structure design and surveillance practices to optimize lessons learned. Results provide field perspectives of corrosion failures, consequences, and corrective actions from an operating utility's perspective.