有載分接開關的電動控制回(hui)路應設(she)置(zhi)電流(liu)(liu)(liu)閉鎖裝(zhuang)置(zhi)，其(qi)整定值為主變(bian)壓(ya)(ya)器(qi)額定電流(liu)(liu)(liu)的1.2倍，電流(liu)(liu)(liu)繼電器(qi)返回(hui)系(xi)數大于(yu)或(huo)等(deng)于(yu)0.9。高壓(ya)(ya)直流(liu)(liu)(liu)輸電所有的換(huan)流(liu)(liu)(liu)變(bian)壓(ya)(ya)器(qi)都需要(yao)有載分(fen)接(jie)開關(guan)進(jin)行調節。因此中國特高壓(ya)(ya)、超高壓(ya)(ya)輸電線(xian)路的建設(she)，對于(yu)有載分(fen)接(jie)開關(guan)技(ji)術應用起到了推動作用。

因為特高(gao)(gao)壓(ya)(ya)輸(shu)電電壓(ya)(ya)等級高(gao)(gao)，運行(xing)(xing)次數頻(pin)繁，對輸(shu)電線路安全性(xing)、可靠性(xing)提出(chu)(chu)了(le)很高(gao)(gao)要求(qiu)，其中(zhong)(zhong)(zhong)有(you)(you)載分接(jie)開關(guan)起(qi)到了(le)十分重(zhong)要的作用。幾臺并列運行(xing)(xing)的冷(leng)(leng)油(you)(you)器(qi)(qi)，好(hao)在每(mei)臺潛油(you)(you)泵(beng)的出(chu)(chu)口加裝(zhuang)逆(ni)止閥(fa)(fa)，以免備用冷(leng)(leng)油(you)(you)器(qi)(qi)中(zhong)(zhong)(zhong)的油(you)(you)流倒(dao)向。運行(xing)(xing)中(zhong)(zhong)(zhong)和備用的冷(leng)(leng)油(you)(you)器(qi)(qi)必須保證油(you)(you)壓(ya)(ya)大于水壓(ya)(ya)。潛油(you)(you)泵(beng)進(jin)油(you)(you)閥(fa)(fa)應(ying)(ying)全部(bu)打開，而用出(chu)(chu)油(you)(you)閥(fa)(fa)調節油(you)(you)的流量(liang)以避免負(fu)壓(ya)(ya)。運行(xing)(xing)中(zhong)(zhong)(zhong)應(ying)(ying)定期監視(shi)壓(ya)(ya)差繼電器(qi)(qi)和壓(ya)(ya)力表的指示以及出(chu)(chu)水中(zhong)(zhong)(zhong)有(you)(you)無油(you)(you)花(hua)(每(mei)臺冷(leng)(leng)油(you)(you)器(qi)(qi)應(ying)(ying)裝(zhuang)有(you)(you)監察出(chu)(chu)水中(zhong)(zhong)(zhong)有(you)(you)無油(you)(you)花(hua)的放水閥(fa)(fa)門(men))。北(bei)方(fang)應(ying)(ying)采取(qu)措施防(fang)止冷(leng)(leng)油(you)(you)器(qi)(qi)停用時銅(tong)管凍裂。

從進入中國市場至今，我們參與了很多重大項目的建設，其中有不少項目使用的有載技術屬國際前沿。有載調容調壓開關的基(ji)本作用原理是將開(kai)關的分接頭(tou)連接至(zhi)調容調壓(ya)變壓(ya)器線圈(quan)的相應分接頭(tou)，在(zai)變壓(ya)器帶負荷的狀態(tai)下，根據配電(dian)終端發(fa)出的信號，進(jin)行自動地(di)切(qie)換分接位置，以及對高壓(ya)線圈(quan)進(jin)行星-角切(qie)換，低壓(ya)側串并聯切(qie)換，從而達(da)到(dao)調節變壓(ya)器容量(liang)，保(bao)證電(dian)壓(ya)質量(liang)，提高系(xi)統功(gong)率(lv)因(yin)數，減少無功(gong)消耗的有效措施之一。

智(zhi)能配(pei)電(dian)(dian)(dian)(dian)(dian)終端，可用(yong)(yong)手動操(cao)作(zuo)，也(ye)可以根據(ju)二(er)次(ci)側(ce)電(dian)(dian)(dian)(dian)(dian)流電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)信號，自動操(cao)作(zuo)開(kai)關完成切換任務(wu)。比如1000千(qian)伏(fu)(fu)特高壓(ya)(ya)(ya)交(jiao)流示(shi)(shi)范工(gong)程(cheng)(cheng)、±800千(qian)伏(fu)(fu)云廣特高壓(ya)(ya)(ya)直流輸(shu)電(dian)(dian)(dian)(dian)(dian)工(gong)程(cheng)(cheng)、糯扎渡±800千(qian)伏(fu)(fu)輸(shu)電(dian)(dian)(dian)(dian)(dian)項目、三峽水電(dian)(dian)(dian)(dian)(dian)站工(gong)程(cheng)(cheng)，2008年北京奧運會場(chang)館(guan),2010上(shang)海(hai)世博(bo)會場(chang)館(guan)等(deng)。在2011年1000千(qian)伏(fu)(fu)淮南—上(shang)海(hai)特高壓(ya)(ya)(ya)交(jiao)流輸(shu)電(dian)(dian)(dian)(dian)(dian)示(shi)(shi)范工(gong)程(cheng)(cheng)中，其中的(de)(de)蕪湖變(bian)電(dian)(dian)(dian)(dian)(dian)站采用(yong)(yong)了1000千(qian)伏(fu)(fu)有(you)載調(diao)壓(ya)(ya)(ya)變(bian)壓(ya)(ya)(ya)器，這是世界首的(de)(de)特高壓(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)網有(you)載調(diao)壓(ya)(ya)(ya)技(ji)術應用(yong)(yong)。當采用(yong)(yong)自動調(diao)壓(ya)(ya)(ya)時(shi)，主變(bian)控制屏上(shang)須有(you)動作(zuo)記數器，自動電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)調(diao)節器的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)互(hu)感器二(er)次(ci)斷(duan)線閉鎖(suo)應正確(que)可靠。 

新裝或大(da)修后有載(zai)分(fen)接開關，應在變壓器(qi)空(kong)載(zai)運行時，在主(zhu)控(kong)制室(shi)用(yong)遠方電動操作(zuo)按鈕及(ji)在變壓器(qi)現場的手(shou)動設備，試操作(zuo)一個循環，檔(dang)位(wei)(wei)和電壓等(deng)各項指(zhi)示正確，極限位(wei)(wei)置的電氣閉鎖可靠(kao)，方可調至調度要求的分(fen)接檔(dang)位(wei)(wei)以帶負荷運行，并加強監視。