Research on Accelerated Degradation Model of Electric Meter Measurement Performance Based on Wiener Process

With the reliability of electricity meters increasing, common accelerated life testing is hard to infer their reliability. From the perspective of degradation data which conforms to stochastic processes, this paper infers electric meter’s probability density function of measurement performance and establishes the reliability model based on Wiener process. According to the proposed model, the time to reach reliability of 91% under normal conditions is about 26 years.