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高压电器  2015 

同塔双回直流输电系统中GRTS转换异常分析

DOI: 10.13296/j.1001-1609.hva.2015.11.032, PP. 194-198

Keywords: 直流开关,大地回线转换开关,金属回线转换断路器,振荡回路,同塔双回

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Abstract:

文中研究所涉实例为国内首次现场采用实施的直流线路同塔双回工程。由于直流线路同塔并架所造成的线路感应电压升高,对换流站中性区域设备和直流开关的影响无可借鉴的历史经验。笔者结合一起GRTS直流开关转换异常事件,研究分析了该类问题的起因与隐患,并提出了相应的反事故措施建议,对今后直流线路同塔并架系统中换流站内设备的绝缘水平设计、运维检修工作均有借鉴意义。

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