Maintenance Decision Based on Risk Assessment of Electric Transmission and Distribution Equipment

Given the current maintenance technology of electric transmission equipment, the risk assessment is introduced into the maintenance decision of electric transmission equipment, and a basic technical framework which is based on the maintenance method of risk assessment applying to the power transmission equipment is built. From two aspects of economic risk and systemic risk, each quantitative risk indicator of the equipment is gotten. By quantifying the systemic risk economically, the system consequence of electric transmission equipment outage can be presented by the corresponding system severity. This method has been proved to be more scientifically to assess risk and more quickly and effectively to make maintenance decisions by the final example analysis.