四川电力技术
四川電力技術
사천전력기술
SICHUAN ELECTRIC POWER TECHNOLOGY
2013年
5期
45-48,82
,共5页
蔡显岗%康娣%季杰%黄建琼
蔡顯崗%康娣%季傑%黃建瓊
채현강%강제%계걸%황건경
注入式%基波+3次谐波%接地保护装置%保护试验
註入式%基波+3次諧波%接地保護裝置%保護試驗
주입식%기파+3차해파%접지보호장치%보호시험
voltage injection%zero-sequence voltage plus 3rd harmonic%earth protective devices%protection test
锦屏二级水电站采用了南瑞继保注入式和“零序+3次谐波”电压定子接地保护原理,实现了不同原理的双重化配置。阐述了定子接地保护的原理,介绍两套定子接地保护的试验步骤,给出了试验结果,对定子接地保护试验过程中出现的几个问题进行了分析,验证保护的合理性。
錦屏二級水電站採用瞭南瑞繼保註入式和“零序+3次諧波”電壓定子接地保護原理,實現瞭不同原理的雙重化配置。闡述瞭定子接地保護的原理,介紹兩套定子接地保護的試驗步驟,給齣瞭試驗結果,對定子接地保護試驗過程中齣現的幾箇問題進行瞭分析,驗證保護的閤理性。
금병이급수전참채용료남서계보주입식화“령서+3차해파”전압정자접지보호원리,실현료불동원리적쌍중화배치。천술료정자접지보호적원리,개소량투정자접지보호적시험보취,급출료시험결과,대정자접지보호시험과정중출현적궤개문제진행료분석,험증보호적합이성。
The stator earth-fault protections with voltage injection and "zero-sequence voltage plus 3rd harmonic"are adopt-ed in Jipin-2 Hydroelectric Power Station , so the duplicate configuration of protections with different principles is realized . Firstly, the principle of stator earth -fault protection is described , and then the test procedures for two stator earth -fault pro-tections are introduced with the test results .At last, some questions during the test of stator earth -fault protection are ana-lyzed, and the reasonableness of the proposed protection is verified .