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高压大电流爆炸母线式开断器的分析与优化设计

, PP. 121-127

Keywords: 高压大电流,开断器,中分型爆炸母线式,混合型限流熔断器,温升,换流

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Abstract:

爆炸式开断器是一种新型故障限流器—爆炸式混合型限流熔断器的核心部件。提出了一种中分型爆炸母线式开断器结构,基于ANSYS建立了其温升仿真模型,基于LS-DYNA建立了其爆炸仿真模型。对额定10kV/2kA开断器进行了结构参数优化设计,通过温升试验、爆炸试验和整机40kA短路分断试验验证了仿真结果,证实了其良好性能。结果表明,该开断器具有火工品处温升低,断口刚分时间短,开距增长速度快,换流弧压高,介质恢复能力强等特点,适合于高压大电流情况的应用。

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