In order to protect the safe and stable operation of relay protection devices and make them retire in the best years, a service life prediction method of relay protection devices considering acceleration state and operation characteristics is proposed. The service life prediction structure of relay protection device is established, and its service life is evaluated from the characteristics of the device itself. By running the degradation track of service life, the service life of relay protection device in the current state is grasped, and the service life prediction model considering acceleration state and operation characteristics is constructed, and the model is solved to realize the service life prediction. The experimental results show that the prediction results of this method have a high degree of fitting with the actual situation, and the service life of relay protection devices can be accurately predicted more reliably, which is reliable and feasible.
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Jiao et al. (2024) studied this question.
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