實力廠家 10年專注電力設備
專業生產、銷售、變壓器
穩壓器、調壓器等電力設備
穩壓器、調壓器等電力設備
全國咨詢熱線：
一、變壓器的接(jie)線(xian)方式(shi)有(you)幾(ji)種
變壓器的接線(xian)組(zu)別(bie)就是變壓器一次(ci)繞組(zu)和二次(ci)繞組(zu)組(zu)合接線(xian)形式的一種表示方法(fa)；
常見的變(bian)壓(ya)器繞組有二種接(jie)法，即(ji)“三(san)角形(xing)接(jie)線(xian)”和“星形(xing)接(jie)線(xian)”；在變(bian)壓(ya)器的聯接(jie)組別中“D表(biao)(biao)示(shi)為三(san)角形(xing)接(jie)線(xian)，“Yn”表(biao)(biao)示(shi)為星形(xing)帶中性線(xian)的接(jie)線(xian)，Y表(biao)(biao)示(shi)星形(xing)，n表(biao)(biao)示(shi)帶中性線(xian)；“11”表(biao)(biao)示(shi)變(bian)壓(ya)器二次(ci)側(ce)的線(xian)電壓(ya)Uab滯后一(yi)次(ci)側(ce)線(xian)電壓(ya)UAB330度(du)（或超前30度(du)）。
變壓器的(de)聯接(jie)組別(bie)的(de)表(biao)示(shi)方(fang)法：大寫字(zi)母(mu)表(biao)示(shi)一次(ci)(ci)側（或(huo)原邊）的(de)接(jie)線(xian)方(fang)式(shi)，小寫字(zi)母(mu)表(biao)示(shi)二次(ci)(ci)側（或(huo)副邊）的(de)接(jie)線(xian)方(fang)式(shi)。Y（或(huo)y）為(wei)星形接(jie)線(xian)，D（或(huo)d）為(wei)三角形接(jie)線(xian)。數字(zi)采用時鐘表(biao)示(shi)法，用來表(biao)示(shi)一、二次(ci)(ci)側線(xian)電(dian)壓的(de)相(xiang)位(wei)關系(xi)，一次(ci)(ci)側線(xian)電(dian)壓相(xiang)量作(zuo)為(wei)分針，固定指在時鐘12點的(de)位(wei)置，二次(ci)(ci)側的(de)線(xian)電(dian)壓相(xiang)量作(zuo)為(wei)時針。
“Yn，d11”，其中11就是(shi)表(biao)示：當一(yi)次(ci)側線電壓(ya)(ya)相(xiang)量作為(wei)分針(zhen)指在時鐘12點(dian)的(de)位(wei)置時，二(er)(er)次(ci)側的(de)線電壓(ya)(ya)相(xiang)量在時鐘的(de)11點(dian)位(wei)置。也就是(shi)，二(er)(er)次(ci)側的(de)線電壓(ya)(ya)Uab滯后(hou)一(yi)次(ci)側線電壓(ya)(ya)UAB330度（或超前30度）。
變壓器(qi)二個繞組組合起(qi)來就形成了(le)4種接線(xian)(xian)(xian)(xian)組別：“Y，y”、“D，y”、“Y，d”和“D，d”。我國只(zhi)采(cai)用“Y，y”和“Y，d”。由于Y連接時還有(you)帶中(zhong)性線(xian)(xian)(xian)(xian)和不帶中(zhong)性線(xian)(xian)(xian)(xian)兩種，不帶中(zhong)性線(xian)(xian)(xian)(xian)則不增加任何符號表(biao)示(shi)，帶中(zhong)性線(xian)(xian)(xian)(xian)則在字母Y后面加字母n表(biao)示(shi)。n表(biao)示(shi)中(zhong)性點有(you)引出(chu)線(xian)(xian)(xian)(xian)。Yn0接線(xian)(xian)(xian)(xian)組別，UAB與(yu)uab相重合，時、分針都(dou)指在12上(shang)。“12”在新的接線(xian)(xian)(xian)(xian)組別中(zhong)，就以“0”表(biao)示(shi)。
二、變壓器主(zhu)要的接線方式(shi)
接線方式：
1、短接變壓器的“輸入”與“輸出”接線(xian)端子用兆(zhao)歐(ou)表測試其與地線(xian)的絕緣電(dian)阻。1000V兆(zhao)歐(ou)表測量時，阻值大于2M歐(ou)姆。
2、變(bian)壓器輸(shu)入(ru)、輸(shu)出電源線(xian)截面配(pei)線(xian)應(ying)滿足其(qi)電流值大(da)小的要求(qiu)；按(an)照2-2.5A/min2電流密(mi)度配(pei)置(zhi)為宜(yi)。
3、輸(shu)入、輸(shu)出三(san)相(xiang)(xiang)電源線(xian)(xian)應(ying)按變(bian)壓器(qi)(qi)接(jie)(jie)線(xian)(xian)板(ban)母線(xian)(xian)顏色黃(huang)、綠、紅分別接(jie)(jie)A相(xiang)(xiang)、B相(xiang)(xiang)、C相(xiang)(xiang)，中性零(ling)線(xian)(xian)應(ying)與(yu)變(bian)壓器(qi)(qi)壓器(qi)(qi)中性零(ling)線(xian)(xian)相(xiang)(xiang)接(jie)(jie)，接(jie)(jie)地線(xian)(xian)與(yu)變(bian)壓器(qi)(qi)外(wai)殼(如變(bian)壓器(qi)(qi)有機(ji)箱(xiang)(xiang)應(ying)與(yu)箱(xiang)(xiang)體(ti)地線(xian)(xian)標志對應(ying)相(xiang)(xiang)連接(jie)(jie))。檢查輸(shu)入輸(shu)出線(xian)(xian)，確(que)認正確(que)無誤。
4、先空(kong)載通電(dian)(dian)，觀察測(ce)試輸入輸出電(dian)(dian)壓符合(he)要求。同時觀察機器(qi)內(nei)部(bu)是(shi)否有異(yi)響、打火、異(yi)味(wei)等非(fei)正常現象，若有異(yi)常,請立即斷開輸入電(dian)(dian)源。
5、當空載測試完(wan)成且正常后，方可接入負載。
三、三相變壓器的(de)連接(jie)方(fang)法(fa)
三(san)(san)(san)相(xiang)(xiang)(xiang)變壓(ya)(ya)(ya)器(qi)(qi)是(shi)(shi)(shi)3個相(xiang)(xiang)(xiang)同的(de)容量單相(xiang)(xiang)(xiang)變壓(ya)(ya)(ya)器(qi)(qi)的(de)組合.它有三(san)(san)(san)個鐵(tie)芯柱,每個鐵(tie)芯柱都繞著同一(yi)相(xiang)(xiang)(xiang)的(de)2個線(xian)(xian)圈,一(yi)個是(shi)(shi)(shi)高壓(ya)(ya)(ya)線(xian)(xian)圈,另一(yi)個是(shi)(shi)(shi)低(di)壓(ya)(ya)(ya)線(xian)(xian)圈.三(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)是(shi)(shi)(shi)產生幅值相(xiang)(xiang)(xiang)等、頻率相(xiang)(xiang)(xiang)等、相(xiang)(xiang)(xiang)位互差120°電(dian)(dian)(dian)(dian)(dian)勢的(de)發電(dian)(dian)(dian)(dian)(dian)機稱(cheng)為(wei)三(san)(san)(san)相(xiang)(xiang)(xiang)發電(dian)(dian)(dian)(dian)(dian)機；以(yi)(yi)三(san)(san)(san)相(xiang)(xiang)(xiang)發電(dian)(dian)(dian)(dian)(dian)機作為(wei)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，稱(cheng)為(wei)三(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)；以(yi)(yi)三(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)供電(dian)(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)(dian)路，稱(cheng)為(wei)三(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)路。U、V、W稱(cheng)為(wei)三(san)(san)(san)相(xiang)(xiang)(xiang)，相(xiang)(xiang)(xiang)與(yu)相(xiang)(xiang)(xiang)之間的(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)是(shi)(shi)(shi)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)為(wei)380V。相(xiang)(xiang)(xiang)與(yu)中(zhong)心線(xian)(xian)之間稱(cheng)為(wei)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)是(shi)(shi)(shi)220V。
廣(guang)泛用(yong)于工(gong)(gong)礦企業(ye)、郵電(dian)、紡織、鐵路、建筑工(gong)(gong)地(di)、學校(xiao)、醫院、賓館、國防、科研等部門的電(dian)子計(ji)(ji)算機(ji)(ji)、精(jing)密(mi)機(ji)(ji)床、計(ji)(ji)算機(ji)(ji)體層掃描(miao)攝影(CT)、精(jing)密(mi)儀器(qi)、實驗裝置、電(dian)梯(ti)、進口設備及生產流水線的交流穩壓電(dian)源。同(tong)時也適用(yong)于電(dian)源電(dian)壓低、波動幅度大的低壓配電(dian)
常(chang)見的連接方法(fa)有星形和三角形兩種。
以(yi)高(gao)壓繞組為例(li)，星形(xing)連接(jie)是(shi)(shi)將(jiang)三(san)相(xiang)(xiang)(xiang)繞組的末(mo)(mo)端(duan)(duan)連接(jie)在一起結為中(zhong)性點(dian)，把三(san)相(xiang)(xiang)(xiang)繞組的首端(duan)(duan)分別(bie)引出，畫接(jie)線圖時(shi)，應將(jiang)三(san)相(xiang)(xiang)(xiang)繞組豎直平行畫出，相(xiang)(xiang)(xiang)序是(shi)(shi)從左向右，電(dian)勢(shi)的正方(fang)向是(shi)(shi)由末(mo)(mo)端(duan)(duan)指向首端(duan)(duan)，電(dian)壓方(fang)向則相(xiang)(xiang)(xiang)反。畫相(xiang)(xiang)(xiang)量(liang)圖時(shi)，應將(jiang)B相(xiang)(xiang)(xiang)電(dian)勢(shi)豎直畫出，其它兩相(xiang)(xiang)(xiang)分別(bie)與其相(xiang)(xiang)(xiang)差(cha)120°按順(shun)時(shi)針排列，三(san)相(xiang)(xiang)(xiang)電(dian)勢(shi)方(fang)向由末(mo)(mo)端(duan)(duan)指向首端(duan)(duan)，線電(dian)勢(shi)也是(shi)(shi)由末(mo)(mo)端(duan)(duan)指向首端(duan)(duan)。
三(san)(san)角(jiao)形(xing)連(lian)接(jie)(jie)(jie)是(shi)(shi)將(jiang)(jiang)三(san)(san)相繞(rao)(rao)(rao)(rao)組(zu)的(de)(de)首(shou)(shou)(shou)、末(mo)端順(shun)次(ci)(ci)連(lian)接(jie)(jie)(jie)成閉合回路，把(ba)三(san)(san)個(ge)接(jie)(jie)(jie)點順(shun)次(ci)(ci)引(yin)出(chu)，三(san)(san)角(jiao)形(xing)連(lian)接(jie)(jie)(jie)又有順(shun)接(jie)(jie)(jie)、倒(dao)接(jie)(jie)(jie)兩種(zhong)接(jie)(jie)(jie)法(fa)。畫(hua)接(jie)(jie)(jie)線圖時(shi)，三(san)(san)相繞(rao)(rao)(rao)(rao)組(zu)應豎直(zhi)平(ping)行排(pai)列(lie)，相序(xu)是(shi)(shi)由左向(xiang)右，順(shun)接(jie)(jie)(jie)是(shi)(shi)上一(yi)相繞(rao)(rao)(rao)(rao)組(zu)的(de)(de)首(shou)(shou)(shou)端與(yu)(yu)下一(yi)相繞(rao)(rao)(rao)(rao)組(zu)的(de)(de)末(mo)端順(shun)次(ci)(ci)連(lian)接(jie)(jie)(jie)。倒(dao)接(jie)(jie)(jie)是(shi)(shi)將(jiang)(jiang)上一(yi)相繞(rao)(rao)(rao)(rao)組(zu)的(de)(de)末(mo)端與(yu)(yu)下一(yi)相繞(rao)(rao)(rao)(rao)組(zu)的(de)(de)首(shou)(shou)(shou)端順(shun)次(ci)(ci)連(lian)接(jie)(jie)(jie)。畫(hua)相量圖時(shi)，仍將(jiang)(jiang)B相豎直(zhi)向(xiang)上畫(hua)出(chu)，三(san)(san)相接(jie)(jie)(jie)點順(shun)次(ci)(ci)按(an)順(shun)時(shi)針排(pai)列(lie)，構成一(yi)個(ge)閉合的(de)(de)等邊(bian)三(san)(san)角(jiao)形(xing)，順(shun)接(jie)(jie)(jie)時(shi)三(san)(san)角(jiao)形(xing)指(zhi)向(xiang)右側(ce)(ce)，倒(dao)接(jie)(jie)(jie)時(shi)三(san)(san)角(jiao)形(xing)指(zhi)向(xiang)左側(ce)(ce)，每(mei)相電勢與(yu)(yu)電壓方向(xiang)與(yu)(yu)星形(xing)接(jie)(jie)(jie)線相同。
即，相(xiang)量圖(tu)是(shi)按三(san)相(xiang)繞組的(de)連接(jie)情況畫出的(de)，是(shi)一種位形圖(tu)。其等電位點在圖(tu)上重(zhong)合為一點，任意(yi)兩點之間(jian)的(de)有向線(xian)段就表示兩面三(san)刀點間(jian)電勢(shi)的(de)相(xiang)量，方向均由末(mo)端指(zhi)向首端。
連接三(san)相(xiang)繞組時，必(bi)須嚴格按繞組端(duan)頭標志和接線(xian)圖進行，不得(de)將一相(xiang)繞組的首、末(mo)端(duan)互換(huan)，否則會造成三(san)相(xiang)電壓(ya)不對(dui)稱，三(san)相(xiang)電流不平衡(heng)，甚至(zhi)損壞變壓(ya)器(qi)。
