文章來源：中國長江三峽集團公司(si) 發(fa)布時間：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(jia)壩水電(dian)(dian)(dian)站發(fa)電(dian)(dian)(dian)機(ji)(ji)定子(zi)(zi)繞(rao)組(zu)采(cai)用全密閉空(kong)氣循環(huan)水冷卻(que)方式，試(shi)(shi)驗(yan)(yan)(yan)(yan)是(shi)對(dui)定子(zi)(zi)各項(xiang)安(an)(an)(an)裝質(zhi)(zhi)量(liang)(liang)指(zhi)標的(de)(de)一(yi)個檢驗(yan)(yan)(yan)(yan)，定子(zi)(zi)是(shi)發(fa)電(dian)(dian)(dian)機(ji)(ji)的(de)(de)核心(xin)部(bu)件(jian)，安(an)(an)(an)裝過(guo)程(cheng)中還要(yao)防(fang)止灰塵，在與土(tu)建相互(hu)施(shi)(shi)工(gong)(gong)(gong)的(de)(de)環(huan)境(jing)下，給(gei)安(an)(an)(an)裝帶(dai)來了很大的(de)(de)困(kun)難，再加上(shang)安(an)(an)(an)裝技(ji)術和質(zhi)(zhi)量(liang)(liang)要(yao)求高，水電(dian)(dian)(dian)四局(ju)向(xiang)家(jia)壩機(ji)(ji)電(dian)(dian)(dian)安(an)(an)(an)裝工(gong)(gong)(gong)程(cheng)項(xiang)目部(bu)根據施(shi)(shi)工(gong)(gong)(gong)現場情(qing)況，為保證(zheng)1號(hao)機(ji)(ji)定子(zi)(zi)的(de)(de)施(shi)(shi)工(gong)(gong)(gong)質(zhi)(zhi)量(liang)(liang)，在定子(zi)(zi)組(zu)裝施(shi)(shi)工(gong)(gong)(gong)中，從定子(zi)(zi)機(ji)(ji)座到(dao)疊片(pian)、上(shang)下層線(xian)棒(bang)安(an)(an)(an)裝、焊接(jie)、匯流環(huan)安(an)(an)(an)裝、驗(yan)(yan)(yan)(yan)收等(deng)等(deng)一(yi)系列(lie)的(de)(de)工(gong)(gong)(gong)序，搭設(she)了防(fang)護棚，嚴格(ge)施(shi)(shi)工(gong)(gong)(gong)規(gui)范，以質(zhi)(zhi)量(liang)(liang)求進度，嚴把每一(yi)道安(an)(an)(an)裝工(gong)(gong)(gong)序，做到(dao)質(zhi)(zhi)量(liang)(liang)控制、精(jing)心(xin)、精(jing)細(xi)，從而保證(zheng)了施(shi)(shi)工(gong)(gong)(gong)質(zhi)(zhi)量(liang)(liang)。通(tong)過(guo)對(dui)定子(zi)(zi)繞(rao)組(zu)絕緣電(dian)(dian)(dian)阻測量(liang)(liang)、吸收比測量(liang)(liang)、極化指(zhi)數測量(liang)(liang)、繞(rao)組(zu)直流耐(nai)(nai)壓試(shi)(shi)驗(yan)(yan)(yan)(yan)、交流耐(nai)(nai)壓試(shi)(shi)驗(yan)(yan)(yan)(yan)等(deng)各項(xiang)試(shi)(shi)驗(yan)(yan)(yan)(yan)，此次首臺1號(hao)機(ji)(ji)組(zu)定子(zi)(zi)整體耐(nai)(nai)壓試(shi)(shi)驗(yan)(yan)(yan)(yan)的(de)(de)成功，為該(gai)機(ji)(ji)組(zu)下一(yi)步轉子(zi)(zi)吊裝贏得了時間。