【電(dian)力變(bian)壓器(qi)】電(dian)力變(bian)壓器(qi)規格型號(hao) 電(dian)力變(bian)壓器(qi)分類及作用

電力變壓器型號規格有哪些

電力(li)變壓器型號有哪些？主(zhu)要有SZ11型-35KV系(xi)(xi)列(lie)油(you)(you)浸式(shi)(shi)(shi)、SCB10型-10KV系(xi)(xi)列(lie)干(gan)式(shi)(shi)(shi)、S11型-10KV系(xi)(xi)列(lie)油(you)(you)浸式(shi)(shi)(shi)、SCB10型-20KV系(xi)(xi)列(lie)干(gan)式(shi)(shi)(shi)、SB11型-20KV系(xi)(xi)列(lie)油(you)(you)浸式(shi)(shi)(shi)。變壓器按冷(leng)卻方式(shi)(shi)(shi)來分為油(you)(you)浸式(shi)(shi)(shi)和干(gan)式(shi)(shi)(shi)變兩種。

變壓器具體型號每個廠(chang)家(jia)叫(jiao)法(fa)可能都有細微差別，市面其它的型號還(huan)有如(ru)下：35kV級(ji)S9-~系(xi)列油(you)(you)浸式(shi)電(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、SG-系(xi)列三相干(gan)式(shi)隔(ge)離變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、CKSC系(xi)列串聯電(dian)(dian)抗器(qi)(qi)(qi)(qi)、10KV級(ji)ZPSG系(xi)列干(gan)式(shi)整(zheng)(zheng)流變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、KBSG礦用防爆干(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、35kV級(ji)S9-~系(xi)列油(you)(you)浸式(shi)電(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、SG10型H級(ji)絕緣干(gan)式(shi)電(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、35KV級(ji)ZS系(xi)列油(you)(you)浸整(zheng)(zheng)流變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、10kV級(ji)S9、S11系(xi)列油(you)(you)浸式(shi)電(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、S（B）H-M非(fei)晶合金卷鐵芯(xin)電(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)、SGB11-R卷鐵芯(xin)H級(ji)非(fei)包封線圈(quan)干(gan)式(shi)電(dian)(dian)力(li)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)(qi)(qi)等一系(xi)列眾多型號。

電力變壓器分類

電力變壓器按用途分類：升壓（發電廠6.3kV/10.5kV或(huo)10.5kV/110kV等）、聯絡(luo)（變電站間用220kV/110kV或(huo)110kV/10.5kV）、降壓（配(pei)電用35kV/0.4kV或(huo)10.5kV/0.4kV）。

電力變壓器按(an)相數分類：單相、三相。

電力變壓(ya)(ya)(ya)器按繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)分(fen)(fen)類：雙繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)（每(mei)相(xiang)裝在(zai)同一鐵(tie)心(xin)上，原(yuan)、副繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)分(fen)(fen)開(kai)繞(rao)(rao)(rao)(rao)(rao)制(zhi)、相(xiang)互(hu)絕緣）、三(san)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)（每(mei)相(xiang)有三(san)個繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)，原(yuan)、副繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)分(fen)(fen)開(kai)繞(rao)(rao)(rao)(rao)(rao)制(zhi)、相(xiang)互(hu)絕緣）、自耦(ou)變壓(ya)(ya)(ya)器（一套繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)中間抽頭(tou)作為(wei)(wei)一次或二次輸(shu)出）。三(san)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)變壓(ya)(ya)(ya)器要(yao)求一次繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的(de)(de)容量大于(yu)或等于(yu)二、三(san)次繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)的(de)(de)容量。三(san)繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)容量的(de)(de)百分(fen)(fen)比按高壓(ya)(ya)(ya)、中壓(ya)(ya)(ya)、低壓(ya)(ya)(ya)順序(xu)有：100/100/100、100/50/100、100/100/50，要(yao)求二、三(san)次繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)均不能(neng)滿載運行。一般(ban)三(san)次繞(rao)(rao)(rao)(rao)(rao)組(zu)(zu)(zu)(zu)電壓(ya)(ya)(ya)較(jiao)低，多用(yong)(yong)于(yu)近區供電或接補償(chang)設(she)備(bei)，用(yong)(yong)于(yu)連接三(san)個電壓(ya)(ya)(ya)等級(ji)。自耦(ou)變壓(ya)(ya)(ya)器：有升壓(ya)(ya)(ya)或降(jiang)壓(ya)(ya)(ya)二種，因其(qi)損耗小、重量輕、使用(yong)(yong)經(jing)濟(ji)，為(wei)(wei)此在(zai)超高壓(ya)(ya)(ya)電網中應用(yong)(yong)較(jiao)多。小型(xing)自耦(ou)變壓(ya)(ya)(ya)器常用(yong)(yong)的(de)(de)型(xing)號為(wei)(wei)400V/36V（24V），用(yong)(yong)于(yu)安(an)全照明(ming)等設(she)備(bei)供電。

電(dian)力變壓(ya)器(qi)按(an)絕緣(yuan)介(jie)質分(fen)類：油浸變壓(ya)器(qi)（阻(zu)燃型、非(fei)阻(zu)燃型）、干式變壓(ya)器(qi)、110kVSF6氣體絕緣(yuan)變壓(ya)器(qi)。

電力變壓器鐵心均為芯式結(jie)構(gou)。

一般通信工程中(zhong)所(suo)配置的三相(xiang)電力變(bian)壓器為雙繞組變(bian)壓器。

十大電力公司>>

電力變壓器的作用

電(dian)(dian)(dian)(dian)(dian)力變(bian)(bian)(bian)壓(ya)(ya)器是發電(dian)(dian)(dian)(dian)(dian)廠和(he)變(bian)(bian)(bian)電(dian)(dian)(dian)(dian)(dian)所(suo)的主要(yao)設備之(zhi)一(yi)。變(bian)(bian)(bian)壓(ya)(ya)器的作(zuo)用是多(duo)方(fang)面的不僅(jin)能(neng)升高(gao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)把電(dian)(dian)(dian)(dian)(dian)能(neng)送到用電(dian)(dian)(dian)(dian)(dian)地(di)區，還能(neng)把電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)降(jiang)低(di)為(wei)各級使用電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，以滿足(zu)用電(dian)(dian)(dian)(dian)(dian)的需(xu)要(yao)。總之(zhi)，升壓(ya)(ya)與(yu)降(jiang)壓(ya)(ya)都必須由變(bian)(bian)(bian)壓(ya)(ya)器來完成。在(zai)電(dian)(dian)(dian)(dian)(dian)力系統傳送電(dian)(dian)(dian)(dian)(dian)能(neng)的過程中，必然會產生電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)功率(lv)兩部(bu)分損(sun)(sun)耗，在(zai)輸送同一(yi)功率(lv)時電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)損(sun)(sun)耗與(yu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)成反比，功率(lv)損(sun)(sun)耗與(yu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的平方(fang)成反比。利用變(bian)(bian)(bian)壓(ya)(ya)器提高(gao)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)，減少了(le)送電(dian)(dian)(dian)(dian)(dian)損(sun)(sun)失。

變(bian)壓(ya)(ya)(ya)器(qi)是(shi)由(you)繞(rao)在(zai)同(tong)一鐵芯上的兩(liang)個或兩(liang)個以上的線圈(quan)繞(rao)組組成(cheng)，繞(rao)組之間是(shi)通過(guo)交變(bian)磁(ci)場(chang)而聯系著并按電磁(ci)感應(ying)原理工作。變(bian)壓(ya)(ya)(ya)器(qi)安裝位置應(ying)考慮便于運(yun)(yun)行(xing)(xing)、檢修和運(yun)(yun)輸，同(tong)時應(ying)選擇安全可靠的地(di)(di)方。在(zai)使用(yong)變(bian)壓(ya)(ya)(ya)器(qi)時必須合(he)理地(di)(di)選用(yong)變(bian)壓(ya)(ya)(ya)器(qi)的額定(ding)容(rong)(rong)量(liang)(liang)。變(bian)壓(ya)(ya)(ya)器(qi)空載(zai)運(yun)(yun)行(xing)(xing)時，需(xu)(xu)用(yong)較大(da)的無功(gong)功(gong)率。這些無功(gong)功(gong)率要由(you)供電系統供給。變(bian)壓(ya)(ya)(ya)器(qi)的容(rong)(rong)量(liang)(liang)若選擇過(guo)大(da)，不(bu)但增(zeng)加了初投資(zi)，而且使變(bian)壓(ya)(ya)(ya)器(qi)長期處于空載(zai)或輕載(zai)運(yun)(yun)行(xing)(xing)，使空載(zai)損(sun)耗的比(bi)重增(zeng)大(da)，功(gong)率因數降低(di)，網絡損(sun)耗增(zeng)加，這樣運(yun)(yun)行(xing)(xing)既(ji)不(bu)經濟又不(bu)合(he)理。變(bian)壓(ya)(ya)(ya)器(qi)容(rong)(rong)量(liang)(liang)選擇過(guo)小，會使變(bian)壓(ya)(ya)(ya)器(qi)長期過(guo)負荷，易損(sun)壞設備。因此，變(bian)壓(ya)(ya)(ya)器(qi)的額定(ding)容(rong)(rong)量(liang)(liang)應(ying)根據用(yong)電負荷的需(xu)(xu)要進(jin)行(xing)(xing)選擇，不(bu)宜(yi)過(guo)大(da)或過(guo)小。