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高压电器  2014 

特高压变电站大容量电容器组专用断路器电寿命试验研究

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Keywords: 特高压变电站, 无功补偿, 电容器组, 断路器, 电寿命试验

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Abstract:

特高压变电站三次侧无功补偿专用断路器动作次数多、关合涌流高、开断电流大,若发生重击穿将破坏设备绝缘及引发事故扩大的可能。由于特高压工程对专用断路器的技术参数要求高于相关标准,现场运行的投切电容器组断路器未进行满足特高压工程要求的电寿命试验。为了保证特高压工程可靠运行,亟需验证专用开关的电寿命。该项目分析了专用断路器运行工况,进行了电寿命试验回路参数的计算、仿真、建设、调试,并完成了3个不同型号产品的电寿命试验。试验验证了运行中专用断路器的实际电寿命,为现场运行提供了试验参考。通过该次试验还发现了影响专用断路器电寿命性能的诸多因素,为现有专用断路器完善和后续更高电寿命断路器研制提供了工作方向。

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