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高压电器  2015 

一种弹簧机构中合闸保持分闸脱扣系统的改进

DOI: 10.13296/j.1001-1609.hva.2015.12.031, PP. 179-183

Keywords: 断路器,弹簧操动机构,合闸保持,分闸脱扣系统

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Abstract:

由于弹簧操动机构具有诸多使用优点,以前在126kV及以下电压等级断路器中大量配用,其运行可靠,用户评价良好,随着断路器开断容量及配用产品电压等级的进一步提升,配用机构要求具有更大操作功。但机构操作冲击随之加大,其合闸保持分闸脱扣系统可靠性降低,应用中偶尔出现“合后即分”现象。笔者介绍了一种改进后的合闸保持分闸脱扣系统,进行了仿真分析,并完成了多台试验样机机械寿命试验测试,充分验证了该结构的可靠性及稳定性,将其在CT20弹簧操动机构中推广应用。

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