變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)參數選擇(ze)(ze)(ze)方(fang)法 額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)是(shi)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)重要(yao)(yao)數據之一。變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)應(ying)與(yu)所(suo)連接的(de)(de)(de)(de)(de)(de)(de)(de)(de)輸變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian) 線(xian)(xian)路(lu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)相符合(he)，我國輸變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)路(lu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji)為(wei)038、3、6、10、35、63、110 220、330、500(kV) 輸變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)路(lu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji)就是(shi)線(xian)(xian)路(lu)終端(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)，因此連接線(xian)(xian)路(lu)終端(duan)(duan)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)一例 的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)與(yu)上列(lie)數值(zhi)相同，線(xian)(xian)路(lu)始(shi)端(duan)(duan)(電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)端(duan)(duan))電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)考慮了線(xian)(xian)路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)降將 比(bi)等(deng)(deng)(deng)級(ji)(ji)(ji)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)要(yao)(yao)高(gao)。35kv以下電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)始(shi)端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)比(bi)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji)要(yao)(yao)高(gao)5％，而(er)35kV 額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)(de)選擇(ze)(ze)(ze)「及(ji)以上的(de)(de)(de)(de)(de)(de)(de)(de)(de)要(yao)(yao)高(gao)10％，因此變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)也相應(ying)提高(gao):線(xian)(xian)路(lu)始(shi)端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)值(zhi)為(wei)04 3.15、6.3、10.5、38.5、69、121、242、363、50(kV) 變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)產品系(xi)(xi)(xi)列(lie)是(shi)以高(gao)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji)面(mian)分的(de)(de)(de)(de)(de)(de)(de)(de)(de)，現在(zai)電(dian)(dian)(dian)(dian)(dian)力變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)系(xi)(xi)(xi)列(lie)分為(wei) l0kV及(ji)以下系(xi)(xi)(xi)列(lie)、3kV系(xi)(xi)(xi)列(lie)、63kV系(xi)(xi)(xi)列(lie)、110V系(xi)(xi)(xi)列(lie)和20V系(xi)(xi)(xi)列(lie)等(deng)(deng)(deng) 在(zai)選擇(ze)(ze)(ze)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji)時，應(ying)根(gen)據當(dang)地電(dian)(dian)(dian)(dian)(dian)網結構的(de)(de)(de)(de)(de)(de)(de)(de)(de)現狀，新建(jian)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)輸電(dian)(dian)(dian)(dian)(dian)線(xian)(xian) 路(lu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)可能性、變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)所(suo)供(gong)電(dian)(dian)(dian)(dian)(dian)負(fu)荷的(de)(de)(de)(de)(de)(de)(de)(de)(de)大小(xiao)、用(yong)戶用(yong)電(dian)(dian)(dian)(dian)(dian)負(fu)荷的(de)(de)(de)(de)(de)(de)(de)(de)(de)大小(xiao)、選用(yong)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)容(rong)量(liang) 的(de)(de)(de)(de)(de)(de)(de)(de)(de)大小(xiao)等(deng)(deng)(deng)確定(ding)(ding)選用(yong)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)等(deng)(deng)(deng)級(ji)(ji)(ji) 變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)就是(shi)各繞組(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)，是(shi)指額(e)定(ding)(ding)施加的(de)(de)(de)(de)(de)(de)(de)(de)(de)或(huo)空(kong)載(zai)時產生的(de)(de)(de)(de)(de)(de)(de)(de)(de) 額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)組(zu)(zu)合(he)的(de)(de)(de)(de)(de)(de)(de)(de)(de)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)。空(kong)破(po)時，某一繞組(zu)(zu)施加額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)，則變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)其他繞組(zu)(zu)都同時產生額(e)定(ding)(ding) 選擇(ze)(ze)(ze) 電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)。繞組(zu)(zu)之間額(e)定(ding)(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)組(zu)(zu)合(he)是(shi)有規定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)(de)(de)。在(zai)選擇(ze)(ze)(ze)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)組(zu)(zu)合(he)時，應(ying)根(gen)據當(dang)地電(dian)(dian)(dian)(dian)(dian) 網結構、用(yong)電(dian)(dian)(dian)(dian)(dian)負(fu)荷結構、變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)所(suo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)作用(yong)等(deng)(deng)(deng)因素(su)選擇(ze)(ze)(ze) 在(zai)選擇(ze)(ze)(ze)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)容(rong)量(liang)時，應(ying)選擇(ze)(ze)(ze)標準的(de)(de)(de)(de)(de)(de)(de)(de)(de)變(bian)(bian)(bian)壓(ya)(ya)(ya)(ya)(ya)(ya)(ya)器(qi)容(rong)量(liang)。