【電力變壓器】電力變壓器規格型號 電力變壓器分類及(ji)作(zuo)用

電力變壓器型號規格有哪些

電力變壓器型(xing)號有(you)哪些？主要有(you)SZ11型(xing)-35KV系(xi)列(lie)油(you)浸(jin)式(shi)、SCB10型(xing)-10KV系(xi)列(lie)干(gan)式(shi)、S11型(xing)-10KV系(xi)列(lie)油(you)浸(jin)式(shi)、SCB10型(xing)-20KV系(xi)列(lie)干(gan)式(shi)、SB11型(xing)-20KV系(xi)列(lie)油(you)浸(jin)式(shi)。變壓器按冷卻方式(shi)來分為油(you)浸(jin)式(shi)和干(gan)式(shi)變兩(liang)種。

變壓器具(ju)體型(xing)(xing)號每個廠家叫法可(ke)能都有(you)細微差別(bie)，市(shi)面其它(ta)的型(xing)(xing)號還有(you)如下：35kV級S9-~系(xi)列(lie)(lie)(lie)油浸式(shi)(shi)(shi)電力變(bian)壓(ya)(ya)(ya)(ya)器(qi)、SG-系(xi)列(lie)(lie)(lie)三相干(gan)(gan)式(shi)(shi)(shi)隔離(li)變(bian)壓(ya)(ya)(ya)(ya)器(qi)、CKSC系(xi)列(lie)(lie)(lie)串(chuan)聯(lian)電抗(kang)器(qi)、10KV級ZPSG系(xi)列(lie)(lie)(lie)干(gan)(gan)式(shi)(shi)(shi)整流變(bian)壓(ya)(ya)(ya)(ya)器(qi)、KBSG礦用防爆干(gan)(gan)式(shi)(shi)(shi)變(bian)壓(ya)(ya)(ya)(ya)器(qi)、35kV級S9-~系(xi)列(lie)(lie)(lie)油浸式(shi)(shi)(shi)電力變(bian)壓(ya)(ya)(ya)(ya)器(qi)、SG10型(xing)(xing)H級絕緣干(gan)(gan)式(shi)(shi)(shi)電力變(bian)壓(ya)(ya)(ya)(ya)器(qi)、35KV級ZS系(xi)列(lie)(lie)(lie)油浸整流變(bian)壓(ya)(ya)(ya)(ya)器(qi)、10kV級S9、S11系(xi)列(lie)(lie)(lie)油浸式(shi)(shi)(shi)電力變(bian)壓(ya)(ya)(ya)(ya)器(qi)、S（B）H-M非(fei)(fei)晶合金(jin)卷鐵芯電力變(bian)壓(ya)(ya)(ya)(ya)器(qi)、SGB11-R卷鐵芯H級非(fei)(fei)包封(feng)線(xian)圈干(gan)(gan)式(shi)(shi)(shi)電力變(bian)壓(ya)(ya)(ya)(ya)器(qi)等一系(xi)列(lie)(lie)(lie)眾多型(xing)(xing)號。

電力變壓器分類

電(dian)力變(bian)壓(ya)器按用途分類：升壓(ya)（發電(dian)廠6.3kV/10.5kV或10.5kV/110kV等）、聯絡（變(bian)電(dian)站間(jian)用220kV/110kV或110kV/10.5kV）、降壓(ya)（配電(dian)用35kV/0.4kV或10.5kV/0.4kV）。

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

電(dian)力變(bian)壓(ya)(ya)器按繞(rao)(rao)組(zu)(zu)(zu)(zu)分(fen)類：雙(shuang)繞(rao)(rao)組(zu)(zu)(zu)(zu)（每(mei)相(xiang)裝在(zai)同(tong)一鐵心上，原、副繞(rao)(rao)組(zu)(zu)(zu)(zu)分(fen)開繞(rao)(rao)制(zhi)、相(xiang)互(hu)絕緣）、三(san)(san)(san)繞(rao)(rao)組(zu)(zu)(zu)(zu)（每(mei)相(xiang)有(you)三(san)(san)(san)個繞(rao)(rao)組(zu)(zu)(zu)(zu)，原、副繞(rao)(rao)組(zu)(zu)(zu)(zu)分(fen)開繞(rao)(rao)制(zhi)、相(xiang)互(hu)絕緣）、自(zi)耦變(bian)壓(ya)(ya)器（一套繞(rao)(rao)組(zu)(zu)(zu)(zu)中間抽頭(tou)作為一次(ci)或(huo)二(er)次(ci)輸出）。三(san)(san)(san)繞(rao)(rao)組(zu)(zu)(zu)(zu)變(bian)壓(ya)(ya)器要求一次(ci)繞(rao)(rao)組(zu)(zu)(zu)(zu)的(de)容量(liang)大(da)于或(huo)等于二(er)、三(san)(san)(san)次(ci)繞(rao)(rao)組(zu)(zu)(zu)(zu)的(de)容量(liang)。三(san)(san)(san)繞(rao)(rao)組(zu)(zu)(zu)(zu)容量(liang)的(de)百分(fen)比按高壓(ya)(ya)、中壓(ya)(ya)、低壓(ya)(ya)順序有(you)：100/100/100、100/50/100、100/100/50，要求二(er)、三(san)(san)(san)次(ci)繞(rao)(rao)組(zu)(zu)(zu)(zu)均(jun)不能滿載運行(xing)。一般三(san)(san)(san)次(ci)繞(rao)(rao)組(zu)(zu)(zu)(zu)電(dian)壓(ya)(ya)較低，多用(yong)(yong)于近區供電(dian)或(huo)接補償設(she)備，用(yong)(yong)于連接三(san)(san)(san)個電(dian)壓(ya)(ya)等級。自(zi)耦變(bian)壓(ya)(ya)器：有(you)升壓(ya)(ya)或(huo)降壓(ya)(ya)二(er)種(zhong)，因其損耗小(xiao)、重量(liang)輕(qing)、使(shi)用(yong)(yong)經濟(ji)，為此在(zai)超(chao)高壓(ya)(ya)電(dian)網中應用(yong)(yong)較多。小(xiao)型自(zi)耦變(bian)壓(ya)(ya)器常用(yong)(yong)的(de)型號為400V/36V（24V），用(yong)(yong)于安全照明(ming)等設(she)備供電(dian)。

電力變(bian)壓(ya)器(qi)(qi)按絕緣介質分類：油浸變(bian)壓(ya)器(qi)(qi)（阻燃型、非(fei)阻燃型）、干式變(bian)壓(ya)器(qi)(qi)、110kVSF6氣(qi)體絕緣變(bian)壓(ya)器(qi)(qi)。

電力變壓器鐵心均(jun)為芯式結構。

一(yi)般通信(xin)工(gong)程中所配置的三相(xiang)電力變壓(ya)器為雙繞(rao)組變壓(ya)器。

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電力變壓器的作用

電(dian)(dian)(dian)(dian)力變(bian)壓器是發(fa)電(dian)(dian)(dian)(dian)廠(chang)和(he)變(bian)電(dian)(dian)(dian)(dian)所的(de)(de)主要(yao)設備之一。變(bian)壓器的(de)(de)作用(yong)是多方(fang)面的(de)(de)不僅能升高電(dian)(dian)(dian)(dian)壓把電(dian)(dian)(dian)(dian)能送到(dao)用(yong)電(dian)(dian)(dian)(dian)地區，還(huan)能把電(dian)(dian)(dian)(dian)壓降低(di)為各級使用(yong)電(dian)(dian)(dian)(dian)壓，以滿(man)足用(yong)電(dian)(dian)(dian)(dian)的(de)(de)需(xu)要(yao)。總之，升壓與(yu)降壓都必(bi)須由變(bian)壓器來完成(cheng)。在電(dian)(dian)(dian)(dian)力系統傳(chuan)送電(dian)(dian)(dian)(dian)能的(de)(de)過程中，必(bi)然會產生電(dian)(dian)(dian)(dian)壓和(he)功(gong)(gong)率兩部分損(sun)(sun)耗(hao)，在輸(shu)送同一功(gong)(gong)率時電(dian)(dian)(dian)(dian)壓損(sun)(sun)耗(hao)與(yu)電(dian)(dian)(dian)(dian)壓成(cheng)反比，功(gong)(gong)率損(sun)(sun)耗(hao)與(yu)電(dian)(dian)(dian)(dian)壓的(de)(de)平方(fang)成(cheng)反比。利用(yong)變(bian)壓器提高電(dian)(dian)(dian)(dian)壓，減少了送電(dian)(dian)(dian)(dian)損(sun)(sun)失。

變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)是由繞(rao)在(zai)同一(yi)鐵芯上(shang)的(de)兩個或兩個以上(shang)的(de)線圈繞(rao)組組成，繞(rao)組之間(jian)是通過(guo)交變(bian)(bian)磁(ci)場而聯系(xi)著并按電(dian)(dian)磁(ci)感應原理(li)工作。變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)安裝位置應考(kao)慮(lv)便(bian)于(yu)運行(xing)(xing)、檢修和運輸，同時應選擇(ze)安全(quan)可靠(kao)的(de)地(di)方(fang)。在(zai)使(shi)用變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)時必須合(he)理(li)地(di)選用變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)的(de)額定容量(liang)。變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)空(kong)載(zai)運行(xing)(xing)時，需用較(jiao)大(da)的(de)無(wu)功(gong)功(gong)率。這些(xie)無(wu)功(gong)功(gong)率要由供電(dian)(dian)系(xi)統供給。變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)的(de)容量(liang)若(ruo)選擇(ze)過(guo)大(da)，不但增加了初投資(zi)，而且使(shi)變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)長(chang)期處于(yu)空(kong)載(zai)或輕載(zai)運行(xing)(xing)，使(shi)空(kong)載(zai)損耗的(de)比(bi)重增大(da)，功(gong)率因數降低，網絡損耗增加，這樣(yang)運行(xing)(xing)既不經濟又不合(he)理(li)。變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)容量(liang)選擇(ze)過(guo)小(xiao)，會使(shi)變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)長(chang)期過(guo)負荷，易損壞設備。因此，變(bian)(bian)壓(ya)器(qi)(qi)(qi)(qi)的(de)額定容量(liang)應根據(ju)用電(dian)(dian)負荷的(de)需要進行(xing)(xing)選擇(ze)，不宜(yi)過(guo)大(da)或過(guo)小(xiao)。