The research on aging failure rate and optimization estimation of protective relay under haze conditions

Ying-kang Wang; Meng-ran Zhou; Jie Yang; Pei-qiang Zhou; Ying Xie

doi:10.1117/12.2265485

23 January 2017 The research on aging failure rate and optimization estimation of protective relay under haze conditions

Ying-kang Wang, Meng-ran Zhou, Jie Yang, Pei-qiang Zhou, Ying Xie

Author Affiliations +

Proceedings Volume 10322, Seventh International Conference on Electronics and Information Engineering; 103223M (2017) https://doi.org/10.1117/12.2265485
Event: Seventh International Conference on Electronics and Information Engineering, 2016, Nanjing, China

Abstract

In the fog and haze, the air contains large amounts of H2S, SO2, SO3 and other acids, air conductivity is greatly improved, the relative humidity is also greatly increased, Power transmission lines and electrical equipment in such an environment will increase in the long-running failure ratedecrease the sensitivity of the detection equipment, impact protection device reliability. Weibull distribution is widely used in component failure distribution fitting. It proposes a protection device aging failure rate estimation method based on the least squares method and the iterative method,.Combined with a regional power grid statistics, computing protective equipment failure rate function. Binding characteristics of electrical equipment operation status under haze conditions, optimization methods, get more in line with aging protection equipment failure under conditions of haze characteristics.

Citation Download Citation

Ying-kang Wang, Meng-ran Zhou, Jie Yang, Pei-qiang Zhou, and Ying Xie "The research on aging failure rate and optimization estimation of protective relay under haze conditions", Proc. SPIE 10322, Seventh International Conference on Electronics and Information Engineering, 103223M (23 January 2017); https://doi.org/10.1117/12.2265485

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