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北京創聯匯通電氣 ????? 發布時間： 2020-12-19 03:06:02
導讀：導 讀 干式干式變壓器與油浸式電力干式變壓器的區別？兩者如何選擇？ 1. 關于干式干式變壓器 干式干式變壓器是指鐵芯和繞組不浸漬在絕緣油中的干式變壓器。干式干式變壓器冷卻方
導 讀干式(shi)干式(shi)變壓(ya)器與(yu)油(you)浸式(shi)電力干式(shi)變壓(ya)器的(de)區別？兩者如何選擇？
1. 關(guan)于干(gan)式干(gan)式變(bian)壓器干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)壓(ya)器(qi)是指鐵芯(xin)和繞(rao)組不浸(jin)漬(zi)在(zai)絕(jue)緣(yuan)(yuan)油(you)中的干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)壓(ya)器(qi)。干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)壓(ya)器(qi)冷(leng)卻方式(shi)(shi)(shi)(shi)有(you)自然空氣(qi)冷(leng)卻（AN）與強迫空氣(qi)冷(leng)卻（PF）兩(liang)(liang)種。干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)壓(ya)器(qi)結構類(lei)型有(you)固定絕(jue)緣(yuan)(yuan)包封（SCB型）和不包封繞(rao)組結構兩(liang)(liang)種。從高低壓(ya)繞(rao)組的相對位置看有(you)同心(xin)與交迭(die)式(shi)(shi)(shi)(shi)兩(liang)(liang)種。同心(xin)式(shi)(shi)(shi)(shi)結構簡單，制(zhi)造方便，大部分(fen)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)壓(ya)器(qi)釆用(yong)這種結構。交迭(die)式(shi)(shi)(shi)(shi)主(zhu)要(yao)用(yong)于特種干(gan)(gan)(gan)式(shi)(shi)(shi)(shi)變(bian)(bian)壓(ya)器(qi)制(zhi)造。2. 干(gan)式干(gan)式變壓(ya)器(qi)規格(ge)以SCB-11—1250KVA/10KV/0.4KV干(gan)(gan)式(shi)干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)為(wei)(wei)例，來解釋干(gan)(gan)式(shi)干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)型(xing)號的意義：在(zai)上(shang)面(mian)型(xing)號規格(ge)中，S表示(shi)三相電力干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)，C表示(shi)干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)繞(rao)組(zu)(zu)為(wei)(wei)樹脂澆成型(xing)固體，在(zai)C字(zi)母位(wei)置上(shang)G表示(shi)繞(rao)組(zu)(zu)外絕緣介(jie)質(zhi)為(wei)(wei)空氣(qi)，B為(wei)(wei)泊式(shi)繞(rao)組(zu)(zu)，在(zai)B的位(wei)置上(shang)R表示(shi)纏繞(rao)式(shi)繞(rao)組(zu)(zu)，11是系(xi)列號，1250KVA為(wei)(wei)干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)額定容量，10KV為(wei)(wei)干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)一次側(ce)(ce)額定電壓(ya)(ya)，0.4KV為(wei)(wei)干(gan)(gan)式(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)二(er)次側(ce)(ce)額定電壓(ya)(ya)。3. 干式干式變(bian)壓器技術(shu)參(can)數干(gan)式(shi)干(gan)式(shi)變壓器技術(shu)參數有：⑦散熱方式：自然風冷(leng)或溫控風冷(leng)#p#分頁(ye)標題#e#各(ge)種(zhong)容(rong)量干(gan)式干(gan)式變(bian)壓器（SCB型）損(sun)耗參數(shu)如表(biao)1所示。干式(shi)干式(shi)變壓器(qi)運行對(dui)環境要求如下:②空氣相對(dui)濕(shi)度：日平均不大于95%，月(yue)平均不大于90%③海撥高度(du)1600米以下（在(zai)額定容量下）5. 干(gan)式與油浸式干(gan)式變壓器各自優缺點在造(zao)價(jia)上(shang)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)比(bi)(bi)油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)貴。容(rong)量(liang)上(shang)油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)容(rong)量(liang)比(bi)(bi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)做(zuo)得(de)更大(da)。在地下層、樓(lou)層中(zhong)及人員密(mi)集場(chang)(chang)所(suo)需使用(yong)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)。油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)在先立變(bian)(bian)(bian)電所(suo)使用(yong)。箱式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)電站一般用(yong)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)。場(chang)(chang)所(suo)空(kong)(kong)間較大(da)時(shi)，使用(yong)油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)，空(kong)(kong)間較為擁擠時(shi)，使用(yong)于式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)。區域(yu)氣候條(tiao)件較潮濕時(shi)，使用(yong)油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)。需要“防火(huo)防爆”的(de)場(chang)(chang)所(suo)使用(yong)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)。干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)承受負荷的(de)能力要比(bi)(bi)油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)差(cha)。干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)應在額定容(rong)量(liang)下運行。而油浸(jin)(jin)(jin)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)干(gan)(gan)(gan)(gan)(gan)(gan)(gan)式(shi)(shi)(shi)(shi)(shi)(shi)(shi)變(bian)(bian)(bian)壓(ya)(ya)器(qi)(qi)充許短時(shi)過載。6. SCB型(xing)干(gan)式(shi)干(gan)式(shi)變(bian)壓器(qi)與(yu)SGB型(xing)干(gan)式(shi)變(bian)壓器(qi)區(qu)別在繞制線圈方(fang)面(mian)：SCB型干式干式變(bian)壓器低壓線圈采用箔繞。繞組結構：采用銅箔單層纏繞(rao)，層間材料含有潛伏性固(gu)化劑(ji)的(de)環氧樹脂及(ji)下級復合箔。繞組材料：采用導電率極佳(jia)的無氧銅，含銅量99.99%。SGB型干式(shi)干式(shi)變壓器低壓線(xian)圈采用(yong)線(xian)繞。#p#分頁標題#e#繞組結構：圓(yuan)筒式線圈，多(duo)根普通玻璃絲包(bao)扁(bian)銅線。SGB型(xing)干(gan)式(shi)(shi)干(gan)式(shi)(shi)變(bian)壓器(qi)抗短(duan)路能力要強于SCB型(xing)干(gan)式(shi)(shi)干(gan)式(shi)(shi)變(bian)壓器(qi)。在散(san)熱(re)方面，SCB型干式干式變壓(ya)器要好(hao)式SGB型干式變壓(ya)器。在帶負載損耗(hao)方(fang)面，SCB型干(gan)(gan)(gan)變要低于(yu)SGB型干(gan)(gan)(gan)式干(gan)(gan)(gan)式變壓器。7. SGB、SCB、S13型(xing)電力干式變(bian)壓器價格比(bi)較以額定容量1250KVA電力干式(shi)變(bian)壓器為例，在網上找同(tong)類型廠家(jia)報價(jia)進行比較。SGB11---1250KVA/10KV/0.4KV、SCB11—1250KVA/10KV/0.4KV、S13—1250KVA/10KV/0.4KV電(dian)力(li)干(gan)式變(bian)壓(ya)(ya)(ya)器(qi)，之前某廠報(bao)價(jia)(jia)分別為93800元/臺(tai)(tai)、95600元/臺(tai)(tai)59600元/臺(tai)(tai)。從此于以(yi)看出SCB型與SGB型價(jia)(jia)格差別不大，干(gan)式干(gan)式變(bian)壓(ya)(ya)(ya)器(qi)是油浸式干(gan)式變(bian)壓(ya)(ya)(ya)器(qi)價(jia)(jia)格的(de)1.5倍(bei)左右。8. S13型(xing)油浸(jin)式電力干(gan)式變壓器(qi)損(sun)耗參數S13型油浸式電力干(gan)式變壓器損耗參數如表2所示。從表(biao)1與表(biao)2得(de)知，干式(shi)(shi)(shi)(shi)(shi)干式(shi)(shi)(shi)(shi)(shi)變壓(ya)器(qi)(qi)空載(zai)(zai)損耗(hao)比(bi)油浸式(shi)(shi)(shi)(shi)(shi)干式(shi)(shi)(shi)(shi)(shi)變壓(ya)器(qi)(qi)要(yao)大。干式(shi)(shi)(shi)(shi)(shi)干式(shi)(shi)(shi)(shi)(shi)變壓(ya)器(qi)(qi)負載(zai)(zai)損耗(hao)卻(que)比(bi)油浸式(shi)(shi)(shi)(shi)(shi)干式(shi)(shi)(shi)(shi)(shi)變壓(ya)器(qi)(qi)要(yao)小。9. 電力干式變壓(ya)器選(xuan)用導則(ze)在選用干式(shi)變(bian)壓(ya)器(qi)時應(ying)參照GB/T17468---2008《電力(li)干式(shi)變(bian)壓(ya)器(qi)選用導則》和GB4208----2008《外殼(ke)防護等級（IP代碼）》，選用適合場所環境要求(qiu)的電力(li)干式(shi)變(bian)壓(ya)器(qi)。選用電力干式變壓器的一般原則：在選用干式(shi)(shi)(shi)變(bian)壓器技(ji)術參數(shu)時，應以干式(shi)(shi)(shi)變(bian)壓器整體的可靠性(xing)為基礎，綜(zong)合考慮技(ji)術參數(shu)的先(xian)進性(xing)和合理(li)性(xing)、經濟(ji)性(xing)，結(jie)合運行方式(shi)(shi)(shi)，提出(chu)技(ji)術經濟(ji)指標(biao)。同時還要(yao)考慮可能對系統安全(quan)運行、環保、節材(cai)、運輸和安裝空間等(deng)方面的影響。#p#分頁標(biao)題#e#10. 電力干式(shi)變壓(ya)器(qi)選用實例某工業平臺(tai)新建(jian)冷軋帶鋼廠原設計三臺(tai)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)（1250KVA干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)2臺(tai)，400KVA1臺(tai)）用SCB型干(gan)式(shi)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)。業主單位主管向(xiang)筆(bi)者咨(zi)詢這(zhe)(zhe)3臺(tai)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)價(jia)格。筆(bi)者根據這(zhe)(zhe)個廠場(chang)地、環境(jing)和負荷情(qing)況(kuang)，建(jian)議(yi)冷軋帶鋼廠改(gai)選(xuan)油浸式(shi)密(mi)封(feng)式(shi)S13--M型電力(li)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)。這(zhe)(zhe)個廠接(jie)受(shou)了(le)筆(bi)者的(de)(de)建(jian)議(yi)，既節省了(le)大量的(de)(de)寶(bao)貴(gui)資(zi)金，又既經濟又高性能地滿足了(le)生產要求(qiu)。油浸式(shi)電力(li)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)技術(shu)成(cheng)熟(shu)、自然空氣冷卻、質(zhi)量穩定、抗短路(lu)能力(li)強、適合高濕高溫環境(jing)、過(guo)載能力(li)強、壽命(ming)長、價(jia)格是(shi)干(gan)式(shi)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)三分之(zhi)二左右。所以，除非(fei)有消防要求(qiu)選(xuan)用干(gan)式(shi)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)要求(qiu)，否則(ze)，應優兄(xiong)選(xuan)用油浸密(mi)封(feng)式(shi)電力(li)干(gan)式(shi)變(bian)(bian)(bian)(bian)壓(ya)(ya)(ya)器(qi)。
來源：網絡綜合
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