| 三次谐波定子接地保护动作特性及整定计算分析 |
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| 引用本文： | 郭爱军. 三次谐波定子接地保护动作特性及整定计算分析[J]. 水电自动化与大坝监测, 2003, 27(5): 32-36 |
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| 作者姓名： | 郭爱军 |
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| 作者单位： | 江西万安水电厂,江西省万安县,343800 |
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| 摘 要： | 发电机功率的变化会对三次谐波电压型定子接地保护的动作特性及整定计算产生影响;当发电机与升压变之间有断路器时，机组并列前后 UN3/ US3 的变化也会对三次谐波电压型定子接地保护的动作特性及整定计算产生影响。对于中性点经消弧线圈接地的发电机，文中利用 UN3- US3 坐标对此进行了分析。
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| 关 键 词： | 三次谐波电压 定子接地保护 动作特性 整定计算 |
| 收稿时间： | 1900-01-01 |
| 修稿时间： | 1900-01-01 |
ANALYSIS OF OPERATION CHARACTERISTICS AND SET-VALUE CALCULATION OF THIRD HARMONIC VOLTAGE BASED STATOR-GROUNDING PROTECTION |
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| Guo Aijun. ANALYSIS OF OPERATION CHARACTERISTICS AND SET-VALUE CALCULATION OF THIRD HARMONIC VOLTAGE BASED STATOR-GROUNDING PROTECTION[J]. HYDROPOWER AUTOMATION AND DAM MONITORING, 2003, 27(5): 32-36 |
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| Authors: | Guo Aijun |
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| Abstract: | The change of generator power will influence the operation characteristics and set-value calculation of third harmonic voltage based stator-grounding protection. When a breaker is used between the generator and the step-up transformer, the change of U N3/U S3 before and after the breaker closure will also influence the operation characteristics and set-value calculation of third harmonic voltage based stator-grounding protection. For resonant neutral grounding generators, this paper gives an analysis by use of the U N3-U S3 reference frame. |
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| Keywords: | third harmonic voltage stator-grounding protection operation characteristics set-value calculation |
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