Research on the effect of salt mist on the deterioration of auxiliary switches in circuit breaker operating mechanisms under different environmental temperatures

Pengfeng Qiu; Fusheng Zhou; Meng Cong; Jia Ning; Chunlin Yin; Hongming Ma

doi:10.1117/12.3011197

2 November 2023 Research on the effect of salt mist on the deterioration of auxiliary switches in circuit breaker operating mechanisms under different environmental temperatures

Pengfeng Qiu, Fusheng Zhou, Meng Cong, Jia Ning, Chunlin Yin, Hongming Ma

Author Affiliations +

Proceedings Volume 12919, International Conference on Electronic Materials and Information Engineering (EMIE 2023); 1291913 (2023) https://doi.org/10.1117/12.3011197
Event: 3rd International Conference on Electronic Materials and Information Engineering (EMIE 2023), 2023, Guangzhou,, China

Abstract

To reveal the influence of salt spray environment on the auxiliary switch, this study conducted accelerated aging tests on the auxiliary switch based on relevant standards and selected surface corrosion level and operating torque as characteristic parameters. The results indicate that under the influence of salt spray, the surface of the auxiliary switch undergoes corrosion, leading to the destruction of its nickel layer. Moreover, the degree of corrosion intensifies with increasing environmental temperature. The salt spray also infiltrates the internal components of the auxiliary switch, causing rust spots on their surfaces. After 8 cycles of spraying at 45°C, the operating torque increases by approximately 89.8%, resulting in a significant decline in performance. This research clarifies the degradation pattern of the auxiliary switch in salt spray environments, providing a theoretical foundation for the subsequent prediction of the lifespan of circuit breaker operating mechanisms.

Citation Download Citation

Pengfeng Qiu, Fusheng Zhou, Meng Cong, Jia Ning, Chunlin Yin, and Hongming Ma "Research on the effect of salt mist on the deterioration of auxiliary switches in circuit breaker operating mechanisms under different environmental temperatures", Proc. SPIE 12919, International Conference on Electronic Materials and Information Engineering (EMIE 2023), 1291913 (2 November 2023); https://doi.org/10.1117/12.3011197

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