Technical Life Assessment of Main Equipment in Power Grid Considering the Operating State and Aging Mechanism

In response to the issue of difficulty in accurately predicting the technical lifespan of power grid main equipment, this article proposes a technical lifespan evaluation method that comprehensively considers the operating status and aging mechanism of power grid main equipment, based on the aging mechanism of power grid main equipment and the impact of operating status on the aging rate of power grid main equipment. Firstly, determine the operating status of the equipment according to the state evaluation guidelines; Then, establish different aging models based on the aging mechanisms of different equipment types; Finally, convert the state evaluation results into state evaluation coefficients, refer to the design life of the substation main equipment and the aging factor under rated load, calculate the accelerated aging factor, and establish technical life evaluation models for various types of substation main equipment.