Cause analysis and treatment of transverse differential protection device action for a hydraulic generator

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- Cause analysis and treatment of transverse differential protection device action for a hydraulic generator
- Ningxia Electric Power Issue 5, (2013)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.1672-3643.2013.05.008
  CLC：
- Published Online：05 November 2020，
  
  Published：2013
- 稿件说明：
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ZHU Jibin. Cause analysis and treatment of transverse differential protection device action for a hydraulic generator[J]. Ningxia electric power, 2013, (5).
DOI：

ZHU Jibin. Cause analysis and treatment of transverse differential protection device action for a hydraulic generator[J]. Ningxia electric power, 2013, (5). DOI： 10.3969/j.issn.1672-3643.2013.05.008.

针对一起水轮发电机横差保护动作故障进行分析

找出故障原因

提出改进措施。分析结果表明:由于7号、8号磁极间连片烧断

导致绕组发生匝间短路

引起横差保护动作;更换7号、8号磁极后

机组运行正常

再未发生横差保护动作现象。

Aiming at the failure of transverse differential protection device action of a hydraulic gen?erator

checks and analyzes the reasons

brings forward the improvement measures. The analysis resultshows that owing to the connector between No.7 and No.8 magnetic pole burns out

brings on interturnshort circuit of the winding

aroses transverse differential protection device action. After chengingNo.7 and No.8 magnetic pole

the unit operates normally

and transverse differential protection deviceaction never happened again.

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