4000KVA油(you)(you)浸(jin)式電力(li)變(bian)(bian)壓(ya)(ya)器是(shi)(shi)一(yi)種結構更(geng)合(he)理、性能(neng)更(geng)優良的新型高性能(neng)4000KVA油(you)(you)浸(jin)式電力(li)變(bian)(bian)壓(ya)(ya)器，其立(li)體卷鐵(tie)芯由于其三(san)個(ge)芯柱(zhu)是(shi)(shi)等邊三(san)角形的立(li)體排列，其磁路中無空氣隙(xi)，卷繞(rao)更(geng)緊(jin)密，三(san)個(ge)磁路長度一(yi)致(zhi)，且都*短，鐵(tie)芯芯柱(zhu)的橫(heng)截(jie)面積(ji)更(geng)接近于圓形，因此性能(neng)進一(yi)步提高，損耗(hao)降(jiang)(jiang)低(di)，噪聲降(jiang)(jiang)低(di)，三(san)項(xiang)平(ping)衡，減少三(san)次諧波分量，該(gai)產品更(geng)適(shi)用(yong)(yong)于城鄉(xiang)、工礦企業電網改(gai)造，更(geng)適(shi)用(yong)(yong)于組合(he)式4000KVA油(you)(you)浸(jin)式電力(li)變(bian)(bian)壓(ya)(ya)器和預裝式變(bian)(bian)電站用(yong)(yong)4000KVA油(you)(you)浸(jin)式電力(li)變(bian)(bian)壓(ya)(ya)器。

　　主要功能和特點

　　1、鐵(tie)(tie)(tie)心(xin)(xin)：卷(juan)(juan)鐵(tie)(tie)(tie)心(xin)(xin)4000KVA油浸式電(dian)(dian)力變(bian)(bian)壓(ya)(ya)器的(de)鐵(tie)(tie)(tie)心(xin)(xin)采用(yong)厚度為0.30mm或0.27mm的(de)冷(leng)軋(ya)取向硅鋼片(pian)，采用(yong)階梯型卷(juan)(juan)鐵(tie)(tie)(tie)心(xin)(xin)無接縫結(jie)構，在鐵(tie)(tie)(tie)心(xin)(xin)卷(juan)(juan)繞機上卷(juan)(juan)制(zhi)而成(cheng)(cheng)，先繞制(zhi)2個小(xiao)框型鐵(tie)(tie)(tie)心(xin)(xin)，再(zai)在2個小(xiao)框型鐵(tie)(tie)(tie)心(xin)(xin)外面卷(juan)(juan)制(zhi)一(yi)個大(da)框組(zu)成(cheng)(cheng)一(yi)個三相卷(juan)(juan)鐵(tie)(tie)(tie)心(xin)(xin)，卷(juan)(juan)制(zhi)完成(cheng)(cheng)后，再(zai)裝入(ru)鐵(tie)(tie)(tie)心(xin)(xin)退火爐，經(jing)真空(kong)和充氮退火，其鐵(tie)(tie)(tie)心(xin)(xin)性能(neng)能(neng)得到充分的(de)恢復，因而，本系(xi)列4000KVA油浸式電(dian)(dian)力變(bian)(bian)壓(ya)(ya)器空(kong)載(zai)損耗非(fei)常低，比S9系(xi)列10KV級4000KVA油浸式電(dian)(dian)力變(bian)(bian)壓(ya)(ya)器的(de)空(kong)載(zai)損耗平均降低30%，是一(yi)種更的(de)低損耗4000KVA油浸式電(dian)(dian)力變(bian)(bian)壓(ya)(ya)器。

　　2、線圈(quan)：卷鐵(tie)心(xin)4000KVA油浸式電力(li)變壓(ya)器的線圈(quan)繞(rao)(rao)(rao)制(zhi)需要使用(yong)(yong)專用(yong)(yong)繞(rao)(rao)(rao)線機，在鐵(tie)心(xin)上直接繞(rao)(rao)(rao)制(zhi)完成，高(gao)低(di)壓(ya)線圈(quan)同時繞(rao)(rao)(rao)制(zhi)，并(bing)且不需采用(yong)(yong)繞(rao)(rao)(rao)線模。

　　3、組裝：組裝時，不再需要拆卸鐵心上鐵軛，可防止(zhi)鐵心損(sun)耗(hao)在組裝過程中的增大現象(xiang)。

　　4、油(you)(you)箱：卷(juan)心4000KVA油(you)(you)浸式(shi)(shi)電(dian)力變壓器的油(you)(you)箱全部采用波紋(wen)片全密封型(xing)式(shi)(shi)。

　　4000KVA油浸式電(dian)(dian)(dian)力變壓(ya)器為工礦企業與民用(yong)(yong)建(jian)筑供系統(tong)中的重要設備之一，它將10(6)kV或35kV網絡電(dian)(dian)(dian)壓(ya)降至用(yong)(yong)戶(hu)使(shi)用(yong)(yong)的230/400V 母線電(dian)(dian)(dian)壓(ya)。此(ci)類產(chan)品適(shi)用(yong)(yong)于交流50(60)Hz，三(san)相(xiang)(xiang)額定(ding)(ding)(ding)容(rong)量2500kVA(單相(xiang)(xiang)額定(ding)(ding)(ding)容(rong)量833kVA，一般不推薦使(shi)用(yong)(yong)單)，可(ke)在戶(hu)內(nei)(外)使(shi)用(yong)(yong)，容(rong)量315kVA 及以下時(shi)可(ke)安(an)裝在桿上，環境(jing)溫(wen)(wen)(wen)度不高于40℃，不低(di)于-25℃，日平(ping)均溫(wen)(wen)(wen)度30℃，年平(ping)均溫(wen)(wen)(wen)度20℃，相(xiang)(xiang)對濕度不超(chao)過(guo)90%(環境(jing)溫(wen)(wen)(wen)度25℃)，海拔高度不超(chao)過(guo)1000m。若與上述使(shi)用(yong)(yong)條件不符時(shi)，應(ying)按GB6450-86的有關(guan)規定(ding)(ding)(ding)，作適(shi)當的定(ding)(ding)(ding)額調(diao)整。

　　性能(neng)要求(qiu)

　　溫(wen)(wen)升(sheng)：4000KVA油浸式電力(li)變壓器在周圍溫(wen)(wen)度40℃以下及額定(ding)負(fu)載(zai)下連續運(yun)轉，以電阻法(fa)測定(ding)的繞組升(sheng)溫(wen)(wen)不(bu)得超(chao)(chao)過(guo)65℃，在此條件運(yun)轉下，上(shang)層(ceng)絕緣油的溫(wen)(wen)升(sheng)用溫(wen)(wen)度計(ji)測定(ding)，不(bu)得超(chao)(chao)過(guo)60℃，繞組更高溫(wen)(wen)升(sheng)部(bu)分不(bu)得超(chao)(chao)過(guo)80℃

　　額定(ding)容量(liang):4000KVA油浸式電力變壓器在全容量(liang)的更低分接(jie)頭(tou)位(wei)置(zhi)滿(man)載運轉(zhuan)時，各繞(rao)組的溫度上升不得(de)超過說(shuo)明書的規(gui)定(ding)

　　阻(zu)抗：4000KVA油浸式電(dian)力變(bian)壓器(qi)在額定(ding)電(dian)壓分接頭并將繞組溫度換算為75時，以冷(leng)額定(ding)容量為基準的(de)(de)阻(zu)抗應符合(he)2.1.4款的(de)(de)規定(ding)

　　短路標準：4000KVA油浸式電力變壓器(qi)耐受短路能力，應符(fu)合ANS C57.12的規定

　　超載標(biao)準：4000KVA油(you)浸(jin)式電(dian)力變(bian)壓器須能耐受超過銘牌額定值(zhi)的負載

　　用途：

　　無線電(dian)(dian)干擾電(dian)(dian)壓(ya)(ya)標準(zhun):4000KVA油浸式電(dian)(dian)力變(bian)壓(ya)(ya)器產(chan)生的(de)高頻電(dian)(dian)壓(ya)(ya)不得(de)超過(guo)NEMA TR1的(de)規定(ding)

　4000KVA油(you)浸式(shi)(shi)電(dian)(dian)(dian)(dian)力變(bian)壓(ya)(ya)(ya)器(qi)(qi)是(shi)電(dian)(dian)(dian)(dian)子產(chan)品常用(yong)的(de)(de)(de)電(dian)(dian)(dian)(dian)子設備(bei)，是(shi)用(yong)來將低頻低電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)轉(zhuan)換為(wei)低頻高電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)電(dian)(dian)(dian)(dian)磁(ci)感(gan)應設備(bei)。當一次(ci)側繞組(zu)通(tong)過交(jiao)(jiao)流(liu)電(dian)(dian)(dian)(dian)時，4000KVA油(you)浸式(shi)(shi)電(dian)(dian)(dian)(dian)力變(bian)壓(ya)(ya)(ya)器(qi)(qi)產(chan)生交(jiao)(jiao)變(bian)磁(ci)場(chang)，通(tong)過交(jiao)(jiao)變(bian)磁(ci)場(chang)的(de)(de)(de)感(gan)應作用(yong)，次(ci)級繞組(zu)也(ye)相應的(de)(de)(de)產(chan)生交(jiao)(jiao)變(bian)磁(ci)場(chang)而產(chan)生交(jiao)(jiao)流(liu)電(dian)(dian)(dian)(dian)動勢，次(ci)級繞組(zu)的(de)(de)(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)高低與次(ci)級繞組(zu)的(de)(de)(de)匝(za)數(shu)比有(you)關系(xi)，即電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)與匝(za)數(shu)成(cheng)正比，的(de)(de)(de)主要(yao)作用(yong)是(shi)將低電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)轉(zhuan)換成(cheng)所需(xu)的(de)(de)(de)高電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)在(zai)生產(chan)制作過程絕緣尤為(wei)重要(yao)，很多廠家的(de)(de)(de)產(chan)品質量不合格主要(yao)體(ti)現在(zai)絕緣處(chu)理(li)上，做好絕緣是(shi)4000KVA油(you)浸式(shi)(shi)電(dian)(dian)(dian)(dian)力變(bian)壓(ya)(ya)(ya)器(qi)(qi)制作的(de)(de)(de)重中之重。對(dui)于電(dian)(dian)(dian)(dian)子產(chan)品需(xu)要(yao)4000KVA油(you)浸式(shi)(shi)電(dian)(dian)(dian)(dian)力變(bian)壓(ya)(ya)(ya)器(qi)(qi)的(de)(de)(de)領域(yu)分為(wei)以下幾類：(1)醫療器(qi)(qi)械(xie) 如X光機(ji)、高電(dian)(dian)(dian)(dian)位治療儀 (2)印刷、靜電(dian)(dian)(dian)(dian)處(chu)理(li) (3)微電(dian)(dian)(dian)(dian)子靜電(dian)(dian)(dian)(dian)清除 (4)空(kong)氣凈化、油(you)煙(yan)廢(fei)氣處(chu)理(li)等(deng)