| 水轮发电机定子绕组绝缘击穿原因分析及处理 |
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| 引用本文： | 姚景涛,刘微微,张柄如,程立军.水轮发电机定子绕组绝缘击穿原因分析及处理[J].内蒙古电力技术,2012,30(1):113-116. |
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| 作者姓名： | 姚景涛 刘微微 张柄如 程立军 |
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| 作者单位： | 万家寨水电站,山西偏关,036412 |
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| 摘 要： | 由于万家寨水电站4号水轮发电机定子铁心硅钢片溢出划破线棒绝缘,导致进行定子绕组交流耐压试验(大修前)时绝缘击穿造成接地故障,通过"直流高压放电方法"进行接地点检查,最后将所有线棒拔出进行检查、修复或更换,故障得以消除。
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| 关 键 词： | 水轮发电机 定子铁心 硅钢片 溢出 交流耐压试验 绝缘击穿 |
Cause Analysis and Its Solution on Insulation Breakdown to Stator Winding of Hydro-turbine Generator |
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| Yao Jingtao
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Liu Weiwei
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Zhang Bingru
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Cheng Lijun.Cause Analysis and Its Solution on Insulation Breakdown to Stator Winding of Hydro-turbine Generator[J].Inner Mongolia Electric Power,2012,30(1):113-116. |
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| Authors: | Yao Jingtao Liu Weiwei Zhang Bingru Cheng Lijun |
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| Affiliation: | (Y.R.Wanjiazhai Water Multi-Purpose Dam Project Co.,Ltd.,Shanxi Pianguan 036412) |
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| Abstract: | Gushy silicon-steel sheet of stator core of NO.4 Hydro Turbine Generators,Wanjiazhai Hydropower Station,lacerates stator winding insulation,causing grounding fault by insulation breakdown,when conducting AC withstand voltage test to stator windings before overhaul）.Through inspection to grounded neutral by method of Direct Current High Voltage Discharge,finally,all stator cores are pulled out to be inspected,repaired and replaced,and faults are eliminated. |
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| Keywords: | hydro-turbine generator stator core silicon-steel sheet gushy AC withstand voltage test insulation breakdown |
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