论文部分内容阅读
我站1~卅、2~卅水轮发电机组在八三年七月全部遭洪水淹没73小时,经大修处理(分别更换了6个和1个线圈)、予试合格,于八三年十月投入运行。2~#机运行2437小时后;八四年二月二十九日检查性试验中,9450伏直流耐压合格后进行交流耐压,当电压升至7000V时C相击穿1个线圈(在第18槽)。1~#机运行2264小时后,八四年三月十三日检查性试验中,直流耐压时分别升至9450V、6300V,A、C两相各击穿1个线圈(在第68槽和第130槽)。时值汛期来临,县电力紧
I stand 1 ~ 卅, 2 ~ 卅 hydroelectric generating units in July 1983 all flooded 73 hours, overhaul treatment (were replaced by 6 and 1 coil), to the test pass, in ten eight years Month put into operation. 2 ~ # machine running 2437 hours; February 29, 1984 inspection test, 9450 V DC withstand voltage AC withstand voltage, when the voltage rose to 7000V C phase breakdown of a coil (at 18th slot). 1 ~ # machine running 2264 hours, March 13, 1984 inspection test, the DC voltage withstand rose to 9450V, 6300V, A, C breakdown of each of the two coils (in the 68th slot and 130th slot). When the flood season is coming, county electricity tight