人民长江
人民長江
인민장강
YANGTZE RIVER
2014年
5期
103-106
,共4页
灭磁电阻%非线性%故障分析%试验
滅磁電阻%非線性%故障分析%試驗
멸자전조%비선성%고장분석%시험
de-excitation resistance%nonlinear%failure analysis%test
为了更好地了解水力发电机组灭磁电阻的特性及其相关试验过程，以国内某大型水电站为例，分析了其发电机组励磁系统SiC非线性灭磁电阻的局部烧毁故障，并对其灭磁电阻的小电流温升状况进行了试验。结果表明，当灭磁电阻特性存在缺陷时，会对机组的安全运行产生较大的隐患。对灭磁电阻出现事故的背景及其原因分析、对事故所采取的处理措施、模拟试验程序及分析结果等作了描述。
為瞭更好地瞭解水力髮電機組滅磁電阻的特性及其相關試驗過程，以國內某大型水電站為例，分析瞭其髮電機組勵磁繫統SiC非線性滅磁電阻的跼部燒燬故障，併對其滅磁電阻的小電流溫升狀況進行瞭試驗。結果錶明，噹滅磁電阻特性存在缺陷時，會對機組的安全運行產生較大的隱患。對滅磁電阻齣現事故的揹景及其原因分析、對事故所採取的處理措施、模擬試驗程序及分析結果等作瞭描述。
위료경호지료해수력발전궤조멸자전조적특성급기상관시험과정，이국내모대형수전참위례，분석료기발전궤조려자계통SiC비선성멸자전조적국부소훼고장，병대기멸자전조적소전류온승상황진행료시험。결과표명，당멸자전조특성존재결함시，회대궤조적안전운행산생교대적은환。대멸자전조출현사고적배경급기원인분석、대사고소채취적처리조시、모의시험정서급분석결과등작료묘술。
To get a better understanding of characteristics and test process of de-excitation resistance of hydro generating u-nits, an analysis on local burn failure of SiC nonlinear de-excitation resistance of excitation system is carried out and tempera-ture rising induced by small electric current of de-excitation resistance is tested in a large hydropower station of China. The test result indicates that major hidden dangers may probably occur in safe operation of units due to defects of de-excitation resistance performance. In addition, the background and causes of accidents of de-excitation resistance are analyzed, its treatment coun-termeasures are also introduced, and the simulation test procedures and analysis results are described.
