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252kV SF6断路器空载时压力特性试验研究 被引量:10

Experimental Research on Pressure Characteristic of 252 kV SF_6 Circuit Breaker without Load
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摘要 为了研究灭弧室中物性参数的动态特性,笔者对高压SF6断路器在空载状态下压气缸与喷口喉部的压力特性进行了测试,得到压气缸与喷口喉部气体压力的特性曲线。分析了压力变化与开断时间的关系,比较了不同基压下压气缸与喷口喉部气体压力特性的变化,说明了基压对断路器灭弧室内压力的影响。 Gas pressure in puffer chamber and nozzle throat is measured for a high-voltage SF6 circuit breaker without load, and the pressure characteristic curves of the puffer chamber and nozzle throat are obtained in a test. The relationship between pressure and breaking time is analyzed. The changes of the pressure in puffer chamber and nozzle throat under different base pressure are compared, which shows that base pressure has an influence on the pressure in gas chamber.
作者 刘克彬 林莘
出处 《高压电器》 CAS CSCD 北大核心 2009年第1期50-52,56,共4页 High Voltage Apparatus
关键词 高压SF6断路器 灭弧室 压力特性 high-voltage SF6 circuit breaker gas chamber pressure characteristic
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参考文献14

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二级参考文献18

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