| 工业内窥镜在预防发电机定子单相接地的应用 |
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| 引用本文： | 汪波涛. 工业内窥镜在预防发电机定子单相接地的应用[J]. 仪器仪表用户, 2012, 19(3): 35-36 |
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| 作者姓名： | 汪波涛 |
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| 作者单位： | 武汉大学动力与机械学院,武汉430072;浙江省电力公司紧水滩水力发电厂,丽水323000 |
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| 摘 要： | 由于水轮发电机频繁开停机，定子铁芯端部的矽钢片很容易滑出。割伤定子线棒，从而造成定子单相接地故障。然而矽钢片滑出过程不易被肉眼发现，也不能通过监测系统检测，而工业内窥镜可以在定转子狭小的缝隙中。发现矽钢片的滑出现象。并能估算出其滑出尺寸及滑出速度，很好地诊断与预防单相接地故障。
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| 关 键 词： | 矽钢片 定子铁芯 滑出 单相接地故障 工业内窥镜 诊断 预防 |
The application of industrial endoscope to preventing monophase ground fault of generator stator |
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| WANG Bo-tao. The application of industrial endoscope to preventing monophase ground fault of generator stator[J]. Electronic Instrumentation Customer, 2012, 19(3): 35-36 |
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| Authors: | WANG Bo-tao |
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| Affiliation: | WANG Bo-tao1,2(1.College of Power and Mechanical Engineering Wuhan University,Wuhan 430072,China; 2.Jinshuitan Hydropower Plant Zhejiang Electric Power CO.Lishui 323000,China) |
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| Abstract: | Monophase ground fault will happen as the stator windings were cut by the silicon steel sheet which is easily slip out of the end region of stator core,owning to the alternation of water turbine generator starting up and closing down frequently.But the course of slipping out is invisible and cannot be tested by Monitoring system.While the phenomenon of slipping out can be found in the narrow gap between stator and rotor though using Industrial endoscope which can estimate the distance and speed of slipping.and therefore it is easy to diagnose and prevent the monophase ground fault. |
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| Keywords: | silicon steel sheet stator core slip out monophase ground fault industrial endoscope diagnose prevent |
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