文章來源(yuan)：西(xi)安(an)電力機械(xie)制造公司(si) 發布時間：2009-03-27
繼2006年為國網公司武漢特高壓試驗基地成功研制了首根1000千伏電容式電壓互感器之后，2007年以來，西電集團再度為晉東南——南陽——荊門1000千伏特高壓交流試驗示范工程自主研制了6臺1000千伏電容式電壓互感器，并于近期一次性通過全部試驗。其機械強度和抗震能力、絕緣水平及技術性能均處于國際先進水平。
和首臺1000千伏電(dian)(dian)(dian)(dian)(dian)容式電(dian)(dian)(dian)(dian)(dian)壓(ya)互感器相比(bi)，這6臺最新研制成功(gong)的(de)(de)1000千伏電(dian)(dian)(dian)(dian)(dian)容式電(dian)(dian)(dian)(dian)(dian)壓(ya)互感器產品(pin)，無論在(zai)外觀設計(ji)及(ji)內部(bu)結(jie)構方(fang)(fang)面均“技(ji)高一籌”并在(zai)國內創(chuang)下了(le)(le)四個(ge)首次，首次在(zai)電(dian)(dian)(dian)(dian)(dian)容分壓(ya)器每兩節法蘭連(lian)(lian)接處加裝(zhuang)均壓(ya)環，改(gai)善外部(bu)電(dian)(dian)(dian)(dian)(dian)場(chang)分布(bu)，并對(dui)連(lian)(lian)接螺栓起屏蔽作(zuo)用(yong)(yong)(yong)；頂部(bu)裝(zhuang)有(you)四個(ge)均壓(ya)環，以改(gai)善頂部(bu)的(de)(de)場(chang)強，防暈(yun)及(ji)降低無線(xian)電(dian)(dian)(dian)(dian)(dian)干擾；首次在(zai)耦合(he)電(dian)(dian)(dian)(dian)(dian)容器上(shang)采(cai)用(yong)(yong)(yong)膜(mo)紙復合(he)浸(jin)漬C101油，以提高局部(bu)放電(dian)(dian)(dian)(dian)(dian)性(xing)能；首次采(cai)用(yong)(yong)(yong)元件極板凸出并折邊，元件間連(lian)(lian)接采(cai)用(yong)(yong)(yong)焊接方(fang)(fang)式，改(gai)善元件極板邊緣場(chang)強。這四個(ge)首次創(chuang)新無疑對(dui)進一步(bu)優化(hua)百萬(wan)伏電(dian)(dian)(dian)(dian)(dian)容式電(dian)(dian)(dian)(dian)(dian)壓(ya)互感器產品(pin)的(de)(de)結(jie)構性(xing)能起到了(le)(le)良好的(de)(de)推動作(zuo)用(yong)(yong)(yong)。