文章來源：中國長江三(san)峽集團公司(si) 發布時(shi)間：2012-11-08
11月6日，水電四局向家壩機電安裝工程項目部承擔安裝的向家壩水電站1號機定子通過整體交直流耐壓試驗，各項數據顯示首臺80萬千瓦機組發電機定子均達到了優良標準。
向(xiang)家壩水電(dian)(dian)(dian)站發電(dian)(dian)(dian)機(ji)(ji)(ji)定(ding)子(zi)(zi)(zi)繞(rao)(rao)組(zu)采用(yong)全密(mi)閉空氣循環(huan)水冷(leng)卻方式，試驗(yan)(yan)是對(dui)定(ding)子(zi)(zi)(zi)各(ge)項安裝(zhuang)質(zhi)(zhi)量(liang)(liang)(liang)指標的(de)(de)一(yi)個(ge)檢(jian)驗(yan)(yan)，定(ding)子(zi)(zi)(zi)是發電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)核心部件，安裝(zhuang)過程(cheng)中還(huan)要(yao)(yao)防止灰(hui)塵，在與(yu)土建相互(hu)施(shi)工(gong)(gong)的(de)(de)環(huan)境(jing)下，給(gei)安裝(zhuang)帶來了(le)(le)很大的(de)(de)困難，再加上安裝(zhuang)技術和質(zhi)(zhi)量(liang)(liang)(liang)要(yao)(yao)求(qiu)高，水電(dian)(dian)(dian)四局(ju)向(xiang)家壩機(ji)(ji)(ji)電(dian)(dian)(dian)安裝(zhuang)工(gong)(gong)程(cheng)項目部根(gen)據施(shi)工(gong)(gong)現場情況，為保(bao)證(zheng)1號機(ji)(ji)(ji)定(ding)子(zi)(zi)(zi)的(de)(de)施(shi)工(gong)(gong)質(zhi)(zhi)量(liang)(liang)(liang)，在定(ding)子(zi)(zi)(zi)組(zu)裝(zhuang)施(shi)工(gong)(gong)中，從(cong)定(ding)子(zi)(zi)(zi)機(ji)(ji)(ji)座到疊片、上下層(ceng)線棒(bang)安裝(zhuang)、焊接、匯流環(huan)安裝(zhuang)、驗(yan)(yan)收(shou)(shou)等等一(yi)系列的(de)(de)工(gong)(gong)序，搭設了(le)(le)防護棚，嚴格施(shi)工(gong)(gong)規范，以質(zhi)(zhi)量(liang)(liang)(liang)求(qiu)進度，嚴把每一(yi)道(dao)安裝(zhuang)工(gong)(gong)序，做(zuo)到質(zhi)(zhi)量(liang)(liang)(liang)控(kong)制、精心、精細，從(cong)而保(bao)證(zheng)了(le)(le)施(shi)工(gong)(gong)質(zhi)(zhi)量(liang)(liang)(liang)。通過對(dui)定(ding)子(zi)(zi)(zi)繞(rao)(rao)組(zu)絕緣電(dian)(dian)(dian)阻測量(liang)(liang)(liang)、吸收(shou)(shou)比測量(liang)(liang)(liang)、極化指數測量(liang)(liang)(liang)、繞(rao)(rao)組(zu)直流耐壓試驗(yan)(yan)、交流耐壓試驗(yan)(yan)等各(ge)項試驗(yan)(yan)，此(ci)次首臺(tai)1號機(ji)(ji)(ji)組(zu)定(ding)子(zi)(zi)(zi)整體耐壓試驗(yan)(yan)的(de)(de)成(cheng)功，為該機(ji)(ji)(ji)組(zu)下一(yi)步轉子(zi)(zi)(zi)吊裝(zhuang)贏得了(le)(le)時間。