【電(dian)(dian)力變壓器】電(dian)(dian)力變壓器規格(ge)型(xing)號 電(dian)(dian)力變壓器分類及(ji)作(zuo)用(yong)

電力變壓器型號規格有哪些

電力變(bian)壓器型(xing)號(hao)有哪(na)些(xie)？主要有SZ11型(xing)-35KV系(xi)列油浸(jin)式(shi)、SCB10型(xing)-10KV系(xi)列干(gan)式(shi)、S11型(xing)-10KV系(xi)列油浸(jin)式(shi)、SCB10型(xing)-20KV系(xi)列干(gan)式(shi)、SB11型(xing)-20KV系(xi)列油浸(jin)式(shi)。變(bian)壓器按冷卻方式(shi)來分為(wei)油浸(jin)式(shi)和干(gan)式(shi)變(bian)兩種。

變壓器具體型號(hao)每個廠家(jia)叫法可能(neng)都有細(xi)微差別(bie)，市面其它的型號(hao)還有如下：35kV級(ji)S9-~系(xi)列(lie)(lie)油浸式(shi)電(dian)力(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、SG-系(xi)列(lie)(lie)三相(xiang)干式(shi)隔離變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、CKSC系(xi)列(lie)(lie)串聯電(dian)抗器(qi)(qi)、10KV級(ji)ZPSG系(xi)列(lie)(lie)干式(shi)整流變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、KBSG礦用防爆干式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、35kV級(ji)S9-~系(xi)列(lie)(lie)油浸式(shi)電(dian)力(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、SG10型H級(ji)絕(jue)緣(yuan)干式(shi)電(dian)力(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、35KV級(ji)ZS系(xi)列(lie)(lie)油浸整流變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、10kV級(ji)S9、S11系(xi)列(lie)(lie)油浸式(shi)電(dian)力(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、S（B）H-M非(fei)晶合(he)金卷(juan)鐵芯電(dian)力(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)、SGB11-R卷(juan)鐵芯H級(ji)非(fei)包封線圈干式(shi)電(dian)力(li)(li)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)(qi)等一系(xi)列(lie)(lie)眾多型號(hao)。

電力變壓器分類

電力(li)變(bian)壓(ya)器(qi)按用(yong)途(tu)分類：升(sheng)壓(ya)（發電廠6.3kV/10.5kV或10.5kV/110kV等(deng)）、聯絡（變(bian)電站間用(yong)220kV/110kV或110kV/10.5kV）、降壓(ya)（配電用(yong)35kV/0.4kV或10.5kV/0.4kV）。

電力變壓器按相(xiang)數分類(lei)：單相(xiang)、三相(xiang)。

電(dian)力變(bian)壓(ya)(ya)(ya)(ya)器(qi)按繞(rao)(rao)(rao)(rao)組(zu)(zu)分(fen)類：雙繞(rao)(rao)(rao)(rao)組(zu)(zu)（每相(xiang)裝在(zai)同(tong)一鐵(tie)心上，原(yuan)、副繞(rao)(rao)(rao)(rao)組(zu)(zu)分(fen)開(kai)繞(rao)(rao)(rao)(rao)制(zhi)、相(xiang)互絕緣）、三(san)(san)(san)繞(rao)(rao)(rao)(rao)組(zu)(zu)（每相(xiang)有三(san)(san)(san)個繞(rao)(rao)(rao)(rao)組(zu)(zu)，原(yuan)、副繞(rao)(rao)(rao)(rao)組(zu)(zu)分(fen)開(kai)繞(rao)(rao)(rao)(rao)制(zhi)、相(xiang)互絕緣）、自(zi)耦變(bian)壓(ya)(ya)(ya)(ya)器(qi)（一套繞(rao)(rao)(rao)(rao)組(zu)(zu)中間抽頭作(zuo)為(wei)一次(ci)或(huo)(huo)二(er)次(ci)輸出）。三(san)(san)(san)繞(rao)(rao)(rao)(rao)組(zu)(zu)變(bian)壓(ya)(ya)(ya)(ya)器(qi)要求一次(ci)繞(rao)(rao)(rao)(rao)組(zu)(zu)的(de)容量(liang)(liang)(liang)大(da)于(yu)(yu)或(huo)(huo)等(deng)于(yu)(yu)二(er)、三(san)(san)(san)次(ci)繞(rao)(rao)(rao)(rao)組(zu)(zu)的(de)容量(liang)(liang)(liang)。三(san)(san)(san)繞(rao)(rao)(rao)(rao)組(zu)(zu)容量(liang)(liang)(liang)的(de)百分(fen)比按高(gao)壓(ya)(ya)(ya)(ya)、中壓(ya)(ya)(ya)(ya)、低(di)壓(ya)(ya)(ya)(ya)順序有：100/100/100、100/50/100、100/100/50，要求二(er)、三(san)(san)(san)次(ci)繞(rao)(rao)(rao)(rao)組(zu)(zu)均不能滿載運行。一般三(san)(san)(san)次(ci)繞(rao)(rao)(rao)(rao)組(zu)(zu)電(dian)壓(ya)(ya)(ya)(ya)較低(di)，多用于(yu)(yu)近區(qu)供(gong)電(dian)或(huo)(huo)接補償設備，用于(yu)(yu)連接三(san)(san)(san)個電(dian)壓(ya)(ya)(ya)(ya)等(deng)級。自(zi)耦變(bian)壓(ya)(ya)(ya)(ya)器(qi)：有升(sheng)壓(ya)(ya)(ya)(ya)或(huo)(huo)降壓(ya)(ya)(ya)(ya)二(er)種，因其(qi)損耗小(xiao)(xiao)、重量(liang)(liang)(liang)輕(qing)、使用經(jing)濟，為(wei)此在(zai)超高(gao)壓(ya)(ya)(ya)(ya)電(dian)網中應用較多。小(xiao)(xiao)型自(zi)耦變(bian)壓(ya)(ya)(ya)(ya)器(qi)常用的(de)型號為(wei)400V/36V（24V），用于(yu)(yu)安全照明等(deng)設備供(gong)電(dian)。

電力變壓器(qi)按絕(jue)緣介質分(fen)類：油浸變壓器(qi)（阻(zu)燃型(xing)、非阻(zu)燃型(xing)）、干(gan)式變壓器(qi)、110kVSF6氣體絕(jue)緣變壓器(qi)。

電(dian)力變壓(ya)器鐵心均為芯式結構。

一(yi)般通信(xin)工程中所配置的(de)三相(xiang)電力變壓器(qi)為(wei)雙繞組變壓器(qi)。

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電力變壓器的作用

電(dian)(dian)(dian)力變壓(ya)(ya)器(qi)是發電(dian)(dian)(dian)廠(chang)和(he)變電(dian)(dian)(dian)所的主(zhu)要設備之一。變壓(ya)(ya)器(qi)的作用(yong)(yong)是多方面的不(bu)僅能(neng)(neng)升(sheng)高(gao)電(dian)(dian)(dian)壓(ya)(ya)把電(dian)(dian)(dian)能(neng)(neng)送(song)到(dao)用(yong)(yong)電(dian)(dian)(dian)地區，還能(neng)(neng)把電(dian)(dian)(dian)壓(ya)(ya)降(jiang)低為(wei)各級使用(yong)(yong)電(dian)(dian)(dian)壓(ya)(ya)，以滿(man)足用(yong)(yong)電(dian)(dian)(dian)的需要。總之，升(sheng)壓(ya)(ya)與(yu)(yu)降(jiang)壓(ya)(ya)都必(bi)須(xu)由變壓(ya)(ya)器(qi)來完成。在電(dian)(dian)(dian)力系統傳(chuan)送(song)電(dian)(dian)(dian)能(neng)(neng)的過程中，必(bi)然會產生(sheng)電(dian)(dian)(dian)壓(ya)(ya)和(he)功率(lv)兩部(bu)分(fen)損耗(hao)，在輸(shu)送(song)同一功率(lv)時電(dian)(dian)(dian)壓(ya)(ya)損耗(hao)與(yu)(yu)電(dian)(dian)(dian)壓(ya)(ya)成反比，功率(lv)損耗(hao)與(yu)(yu)電(dian)(dian)(dian)壓(ya)(ya)的平(ping)方成反比。利用(yong)(yong)變壓(ya)(ya)器(qi)提高(gao)電(dian)(dian)(dian)壓(ya)(ya)，減少了送(song)電(dian)(dian)(dian)損失。

變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)是(shi)由繞(rao)在同一鐵芯上的兩個或兩個以上的線(xian)圈(quan)繞(rao)組(zu)(zu)組(zu)(zu)成(cheng)，繞(rao)組(zu)(zu)之間是(shi)通過(guo)(guo)交(jiao)變(bian)(bian)(bian)磁場而(er)聯系著并按電(dian)磁感應(ying)原理(li)工作。變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)安裝位(wei)置應(ying)考慮便于運(yun)(yun)行(xing)、檢修和運(yun)(yun)輸(shu)，同時(shi)應(ying)選(xuan)擇(ze)(ze)安全可靠的地方。在使用變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)時(shi)必(bi)須合(he)理(li)地選(xuan)用變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的額(e)定容(rong)(rong)量。變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)空(kong)載(zai)運(yun)(yun)行(xing)時(shi)，需用較大(da)(da)的無(wu)功(gong)功(gong)率。這(zhe)些無(wu)功(gong)功(gong)率要由供(gong)電(dian)系統(tong)供(gong)給。變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的容(rong)(rong)量若選(xuan)擇(ze)(ze)過(guo)(guo)大(da)(da)，不但增(zeng)加了初投(tou)資(zi)，而(er)且(qie)使變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)長期處于空(kong)載(zai)或輕載(zai)運(yun)(yun)行(xing)，使空(kong)載(zai)損耗的比重增(zeng)大(da)(da)，功(gong)率因數降低，網(wang)絡損耗增(zeng)加，這(zhe)樣運(yun)(yun)行(xing)既不經(jing)濟(ji)又不合(he)理(li)。變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)容(rong)(rong)量選(xuan)擇(ze)(ze)過(guo)(guo)小(xiao)，會使變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)長期過(guo)(guo)負荷，易損壞設(she)備。因此，變(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的額(e)定容(rong)(rong)量應(ying)根(gen)據用電(dian)負荷的需要進行(xing)選(xuan)擇(ze)(ze)，不宜過(guo)(guo)大(da)(da)或過(guo)(guo)小(xiao)。