山東變壓器廠S11-M變壓器高壓套管出現裝置的介紹

山東變壓器廠S11-M變壓器高(gao)壓(ya)(ya)(ya)(ya)(ya)套管出線裝置必須(xu)只采用同一套， 并按滿足最(zui)高(gao)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)最(zui)大電(dian)(dian)(dian)(dian)流(liu)(liu)來考(kao)慮(lv)， 其(qi)他要求按 IEC 標(biao)準。通(tong)過對(dui)上述技(ji)術要求的分析， 首(shou)先(xian)需(xu)考(kao)慮(lv)雙高(gao)壓(ya)(ya)(ya)(ya)(ya)調(diao)壓(ya)(ya)(ya)(ya)(ya)方(fang)式(shi)的實(shi)現(xian)，高(gao)壓(ya)(ya)(ya)(ya)(ya)兩(liang)(liang)個(ge)額(e)(e)定電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)的關(guan)系(xi)是 Um和 2Um的關(guan)系(xi)，所(suo)以(yi)(yi)在考(kao)慮(lv)高(gao)壓(ya)(ya)(ya)(ya)(ya)繞組的設(she)(she)計(ji)時(shi)，把每(mei)相高(gao)壓(ya)(ya)(ya)(ya)(ya)繞組設(she)(she)計(ji)成匝數相等、 結構(gou)絕對(dui)一致沿軸向(xiang)排列(lie)的兩(liang)(liang)支路， 通(tong)過串并轉(zhuan)換(huan)開(kai)(kai)關(guan)來實(shi)現(xian)繞組兩(liang)(liang)路的串并聯(lian)，從(cong)而(er)分別(bie)得到 Um和 2Um兩(liang)(liang)個(ge)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)，山東變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)廠(chang)S11-M變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)這(zhe)樣(yang)也可(ke)以(yi)(yi)保證雙電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya) 138（69）±3×2.5%（kV）無(wu)勵磁調(diao)壓(ya)(ya)(ya)(ya)(ya)的變(bian)(bian)(bian)(bian)比(bi)(bi)一致性。 其(qi)次考(kao)慮(lv)低(di)(di)壓(ya)(ya)(ya)(ya)(ya) 4.16±16×0.625%(kV)有(you)載調(diao)壓(ya)(ya)(ya)(ya)(ya)的實(shi)現(xian)方(fang)式(shi)，在開(kai)(kai)關(guan)額(e)(e)定電(dian)(dian)(dian)(dian)流(liu)(liu)能滿足要求的情(qing)況下， 山東變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)廠(chang)S11-M變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)可(ke)以(yi)(yi)考(kao)慮(lv)按常規電(dian)(dian)(dian)(dian)力變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)直接加(jia)調(diao)壓(ya)(ya)(ya)(ya)(ya)繞組的方(fang)式(shi)來實(shi)現(xian),這(zhe)樣(yang)可(ke)以(yi)(yi)節省調(diao)壓(ya)(ya)(ya)(ya)(ya)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)，結構(gou)簡單(dan)且成本低(di)(di)。 但一般情(qing)況下低(di)(di)壓(ya)(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)流(liu)(liu)都比(bi)(bi)較大，開(kai)(kai)關(guan)電(dian)(dian)(dian)(dian)流(liu)(liu)與低(di)(di)壓(ya)(ya)(ya)(ya)(ya)額(e)(e)定電(dian)(dian)(dian)(dian)流(liu)(liu)難以(yi)(yi)匹配，所(suo)以(yi)(yi)需(xu)考(kao)慮(lv)特(te)殊的調(diao)壓(ya)(ya)(ya)(ya)(ya)方(fang)式(shi)。 國外通(tong)常的設(she)(she)計(ji)方(fang)法是采用 MR公司生產的大電(dian)(dian)(dian)(dian)流(liu)(liu)電(dian)(dian)(dian)(dian)抗(kang)開(kai)(kai)關(guan)、 內置電(dian)(dian)(dian)(dian)抗(kang)器(qi)和串聯(lian)調(diao)壓(ya)(ya)(ya)(ya)(ya)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)的方(fang)式(shi)實(shi)現(xian)低(di)(di)壓(ya)(ya)(ya)(ya)(ya)有(you)載調(diao)壓(ya)(ya)(ya)(ya)(ya)， 調(diao)壓(ya)(ya)(ya)(ya)(ya)原理圖如圖 2 所(suo)示。這(zhe)種方(fang)式(shi)的缺點(dian)就(jiu)是 MR 電(dian)(dian)(dian)(dian)抗(kang)開(kai)(kai)關(guan)昂(ang)貴(gui)，而(er)且需(xu)為(wei)開(kai)(kai)關(guan)設(she)(she)計(ji)專用的電(dian)(dian)(dian)(dian)抗(kang)器(qi)。為(wei)了降低(di)(di)成本，在此次開(kai)(kai)發設(she)(she)計(ji)時(shi)，采用了主變(bian)(bian)(bian)(bian)山東變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)廠(chang)S11-M變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)器(qi)加(jia)串聯(lian)調(diao)變(bian)(bian)(bian)(bian)的方(fang)式(shi)，而(er)且采用國產普通(tong) M 型開(kai)(kai)關(guan)即可(ke)， 這(zhe)樣(yang)可(ke)降低(di)(di)幾十(shi)萬元成本，經濟效益(yi)相對(dui)可(ke)觀。