| 影响750kV隔离开关正常操作的因素分析 |
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| 引用本文： | 周广伟.影响750kV隔离开关正常操作的因素分析[J].防灾减灾工程学报,2013(5):12-15. |
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| 作者姓名： | 周广伟 |
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| 作者单位： | 国网宁夏电力公司检修公司, 宁夏 银川 750011 |
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| 摘 要： | 针对750 kV隔离开关操作存在的问题,从干扰电压的产生及隔离开关位置不易观测等影响因素加以分析,提出了改进的措施。改造结果表明:隔离开关电机二次回路中采用屏蔽电缆,有效地减少了干扰电压,避免了隔离开关分/合闸时因电机电源跳闸引起长时间扯弧而损坏设备的情况发生,保证了电网的安全可靠运行。
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| 关 键 词： | 750 kV隔离开关 干扰电压 位置指示 |
Influencing factors analysis of smooth operation for 750 kV isolating switch |
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| ZHOU Guangwei.Influencing factors analysis of smooth operation for 750 kV isolating switch[J].Journal of Disaster Prevent and Mitigation Eng,2013(5):12-15. |
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| Authors: | ZHOU Guangwei |
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| Institution: | Maintenance Filiale of State Grid Ningxia Electric Power Co., Yinchuan Ningxia 750011 , China |
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| Abstract: | Aiming at the problems of 750 kV isolating switch operation, analyzes the the influencingfactors such as interference voltage and the isolating switch position, puts forward improving mea?sures. The result shows that using shielded cable in secondary loop of electric motor of disconnector,reduces effectively the interference voltage, avoids striking of arc long time when switch off/on of iso?lating switch and ensures power grid operation on the safe side. |
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