| 一种发电机转子接地检测方法与保护装置 |
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| 引用本文： | 徐华安,程诗明.一种发电机转子接地检测方法与保护装置[J].武汉大学学报(工学版),2011,44(2):266-268. |
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| 作者姓名： | 徐华安 程诗明 |
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| 作者单位： | 1. 湖北省电力试验研究院,湖北,武汉,430077
2. 武汉大学电气工程学院,湖北,武汉,430072 |
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| 摘 要： | 为简化两开关式转子接地检测电路,提出了一种单开关三采样的发电机转子接地故障检测方法,该方法无需另设专门的转子电压测量回路,设计了相应的微机保护装置.试验结果表明该方法与装置能准确判断发电机转子绕组的接地故障、检测接地电阻的大小与确定故障位置.
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| 关 键 词： | 发电机转子 接地故障 微机保护 单开关 |
A detecting method of generator rotor grounding and protection device |
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| XU Huaan,CHENG Shiming.A detecting method of generator rotor grounding and protection device[J].Engineering Journal of Wuhan University,2011,44(2):266-268. |
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| Authors: | XU Huaan CHENG Shiming |
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| Affiliation: | XU Huaan1,CHENG Shiming2(1.Hubei Electric Power Testing & Research Institute,Wuhan 430077,China,2.School of Electrical Engineering,Wuhan University,Wuhan 430072,China) |
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| Abstract: | In order to simplify the circuit of generator rotor grounding protection device,a new detecting method of generator rotor grounding with single switch and three samplings is proposed,in which the detecting circuit for measuring rotor voltage is not needed;and a corresponding digital protection device is developed.The tests show that the new method and device can identify rotor's winding grounding fault accurately,detect grounding resistance and determine fault location of generator rotor's windings. |
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| Keywords: | generator rotor grounding fault protection device single switch |
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