| 一种提升直流分压器保护间隙耐压水平的新方法 |
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| 引用本文： | 宋海龙.一种提升直流分压器保护间隙耐压水平的新方法[J].防灾减灾工程学报,2018(1):38-42. |
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| 作者姓名： | 宋海龙 |
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| 作者单位： | 国网宁夏电力有限公司检修公司,宁夏银川 750011 |
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| 摘 要： | 对特高压换流站由于直流场遭受直击雷而导致双极闭锁的问题,采用一种提升直流分压器保护间隙耐压水平的新方法,避免了由于直流场遭受直击雷而导致双极闭锁的严重隐患。应用结果表明,直流分压器过电压保护间隙回路串接压敏电阻对其耐压水平有着显著提升。
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| 关 键 词： | 直流分压器 保护间隙 压敏电阻 雷电冲击 耐压水平 |
A new way of enhancing the voltage withstand level of DC voltage divider protection gap |
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| SONG Hailong.A new way of enhancing the voltage withstand level of DC voltage divider protection gap[J].Journal of Disaster Prevent and Mitigation Eng,2018(1):38-42. |
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| Authors: | SONG Hailong |
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| Institution: | Maintenance Company of State Grid Ningxia Electric Power Co , Ltd , Yinchuan Ningxia 750011 , China |
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| Abstract: | For the problem of DC bipolar block due to lightning strike in the DC field of UHVDC con-verter station, a new way of enhancing the voltage withstand level of DC voltage divider protection gapis adopted. The serious hidden trouble of bipolar block is avoided due to lightning strike. The resultsshow that piezo-resistor in series with overvoltage protective gap circuit of DC voltage divider signifi-cantly improved the voltage withstand level. |
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