| 拉西瓦水电站1号主变C相高压侧GIB单相接地故障原因分析及处理方法 |
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| 引用本文： | 张严. 拉西瓦水电站1号主变C相高压侧GIB单相接地故障原因分析及处理方法[J]. 青海电力, 2011, 30(2): 49-50,63 |
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| 作者姓名： | 张严 |
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| 作者单位： | 黄河电力检修工程有限公司拉西瓦项目部,青海贵德,811700 |
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| 摘 要： | 拉西瓦水电站电气主接线为发电机—变压器联合单元接线,发电机出口装设发电机断路器,发电机机端电压18 kV,主变压器采用3台单相变组成三相组,750 kV侧2串3/2断路器和1串双断路器接线。文章就拉西瓦水电站1号主变压器高压侧C相G IB发生单相接地故障现象进行分析,提出了处理方法和防范对策。
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| 关 键 词： | 主变压器高压侧 单相接地故障 原因分析 处理方法 |
Failure Reason Analysis and Treatment Process of C-phase High-pressure Side GIB Single Phase Groundingfor 1~# Main Transformer in Laxiwa Hydropower Station |
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| ZHANG Yan. Failure Reason Analysis and Treatment Process of C-phase High-pressure Side GIB Single Phase Groundingfor 1~# Main Transformer in Laxiwa Hydropower Station[J]. Qinghai Electric Power, 2011, 30(2): 49-50,63 |
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| Authors: | ZHANG Yan |
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| Abstract: | Main electrical wiring of Laxiwa hydropower station is generator transformer joint unit wiring,installing circuit breakers on generator outlet,terminal voltage of generater is 18kV,and main transformer adopts 3 sets of single phase changing into three phase.The paper analyzes the failure of C phase high pressure side GIB single phase grounding for 1# Main Transformer in Laxiwa hydropower station,and puts forward processing method and countermeasures. |
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| Keywords: | main transformer high pressure side single phase grounding failure reason analysis processing method |
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