水电与新能源
水電與新能源
수전여신능원
HYDROPOWER AND NEW ENERGY
2014年
11期
13-15,20
,共4页
非全相%对称分量法%水布垭电厂
非全相%對稱分量法%水佈埡電廠
비전상%대칭분량법%수포오전엄
open-phase operation%symmetrical component method%Shuibuya hydropower station
为防止发电机非全相运行，以水布垭电厂3号机组解列操作时变压器高压侧断路器发生非全相运行为例，应用对称分量法分析了发电机三相电流的变化规律，并提出了非全相运行防范措施、故障判断及处理方法。
為防止髮電機非全相運行，以水佈埡電廠3號機組解列操作時變壓器高壓側斷路器髮生非全相運行為例，應用對稱分量法分析瞭髮電機三相電流的變化規律，併提齣瞭非全相運行防範措施、故障判斷及處理方法。
위방지발전궤비전상운행，이수포오전엄3호궤조해렬조작시변압기고압측단로기발생비전상운행위례，응용대칭분량법분석료발전궤삼상전류적변화규률，병제출료비전상운행방범조시、고장판단급처리방법。
An open-phase operation accident in Shuibuya hydropower station is studied , which occurred in the circuit breaker in high voltage side of the transformer when the No .3 generator unit stepped out .Changes of the three-phase current in the generator is analyzed with symmetrical component method .Precautions , fault diagnose and treatment measures are proposed .
