環氧樹脂干式變壓器特點介紹
環(huan)(huan)(huan)氧(yang)(yang)樹(shu)(shu)脂(zhi)澆(jiao)注干式(shi)(shi)變(bian)(bian)壓器(qi)具有(you)安全(quan),阻燃防(fang)火(huo),無污染,可(ke)(ke)(ke)直接安裝(zhuang)在負(fu)荷(he)中(zhong)心。免維護、安裝(zhuang)簡便。防(fang)潮性能好,停運后不經(jing)預(yu)干燥即可(ke)(ke)(ke)投入運行。損耗(hao)低(di),局部放(fang)電(dian)量低(di)、噪音小(xiao)、強(qiang)(qiang)迫(po)風冷條件下可(ke)(ke)(ke)以(yi)(yi)120%額(e)定負(fu)載運行。自己備有(you)完(wan)善的溫(wen)度(du)(du)保(bao)護控制(zhi)系(xi)統,為變(bian)(bian)壓器(qi)安全(quan)運行提(ti)供可(ke)(ke)(ke)靠保(bao)障。該(gai)產品(pin)的可(ke)(ke)(ke)靠性指標已經(jing)達(da)到內先進水平(ping)。環(huan)(huan)(huan)氧(yang)(yang)樹(shu)(shu)脂(zhi)干式(shi)(shi)變(bian)(bian)壓器(qi)以(yi)(yi)環(huan)(huan)(huan)氧(yang)(yang)樹(shu)(shu)脂(zhi)為絕(jue)(jue)緣材料。高(gao)、低(di)壓繞組采用(yong)銅帶(箔)繞成,在真(zhen)空中(zhong)澆(jiao)注環(huan)(huan)(huan)氧(yang)(yang)樹(shu)(shu)脂(zhi)并固化,構(gou)成高(gao)強(qiang)(qiang)度(du)(du)玻璃鋼體結構(gou)。絕(jue)(jue)緣等級有(you)F、H級。環(huan)(huan)(huan)氧(yang)(yang)樹(shu)(shu)脂(zhi)干式(shi)(shi)變(bian)(bian)壓器(qi)有(you)電(dian)氣性能好、耐雷電(dian)沖擊能力強(qiang)(qiang)、抗短路能力強(qiang)(qiang)、體積小(xiao)重量輕(qing)等特(te)點(dian)。可(ke)(ke)(ke)安裝(zhuang)溫(wen)度(du)(du)顯示(shi)控制(zhi)器(qi),對(dui)變(bian)(bian)壓器(qi)繞組的運行溫(wen)度(du)(du)進行顯示(shi)和(he)控制(zhi),保(bao)證變(bian)(bian)壓器(qi)正常使(shi)用(yong)壽命。

結構(gou)特(te)點
1、高、低壓(ya)繞組全部(bu)采用銅帶(箔)繞成;
2、高、低壓繞組(zu)全(quan)部在真空中澆注環(huan)氧樹(shu)脂并固化,構(gou)成高強度玻璃鋼體(ti)結構(gou);
3、高(gao)、低壓(ya)繞組根(gen)據散熱要求設(she)置(zhi)有縱向通風氣道;
4、線圈內、外(wai)表面由玻璃纖(xian)維(wei)網格布增強;
5、絕緣(yuan)等級有F、H級;
6、環氧(yang)(yang)樹(shu)脂(zhi)干(gan)式變壓(ya)(ya)器體積小、重(zhong)量輕。環氧(yang)(yang)樹(shu)脂(zhi)干(gan)式變壓(ya)(ya)器上可(ke)(ke)安裝溫(wen)度(du)(du)顯(xian)示(shi)控(kong)制器,對變壓(ya)(ya)器繞(rao)組(zu)的運行溫(wen)度(du)(du)進行顯(xian)示(shi)和控(kong)制,保證變壓(ya)(ya)器正常(chang)使(shi)用壽(shou)命。其測溫(wen)傳感器PT100鉑電阻插入低(di)(di)壓(ya)(ya)繞(rao)組(zu)內取(qu)得溫(wen)度(du)(du)信號(hao)(hao),經電路處理后在控(kong)制板上循環顯(xian)示(shi)各相繞(rao)組(zu)溫(wen)度(du)(du)。它具(ju)有(you)溫(wen)度(du)(du)設(she)定功(gong)能(neng)(neng),手動(dong)/自動(dong)啟停風機,發出(chu)故(gu)障、超溫(wen)聲(sheng)光信號(hao)(hao)報警和超溫(wen)自動(dong)跳閘等功(gong)能(neng)(neng),具(ju)有(you)家規(gui)定的抗電磁干(gan)擾能(neng)(neng)力。同時(shi)預留(liu)有(you)智能(neng)(neng)計算機接口,實(shi)現遠程控(kong)制。環氧(yang)(yang)樹(shu)脂(zhi)干(gan)式變壓(ya)(ya)器配置有(you)低(di)(di)噪音幅流風機,啟動(dong)后可(ke)(ke)降低(di)(di)繞(rao)組(zu)溫(wen)度(du)(du),提(ti)高(gao)負載能(neng)(neng)力,延(yan)長變壓(ya)(ya)器壽(shou)命;采用強迫風冷時(shi),額定容(rong)量可(ke)(ke)提(ti)高(gao)40-50%。
技術特點(dian)
(1)電(dian)(dian)(dian)(dian)氣性(xing)能好,局(ju)(ju)(ju)部(bu)(bu)(bu)放(fang)電(dian)(dian)(dian)(dian)值低(di):在(zai)變壓(ya)器絕緣(yuan)(yuan)結構中,多少會(hui)有些局(ju)(ju)(ju)部(bu)(bu)(bu)的(de)(de)(de)(de)絕緣(yuan)(yuan)弱點,它在(zai)電(dian)(dian)(dian)(dian)場(chang)的(de)(de)(de)(de)作用(yong)下會(hui)先(xian)先(xian)發生(sheng)放(fang)電(dian)(dian)(dian)(dian),而不隨即形成整個絕緣(yuan)(yuan)貫穿(chuan)性(xing)擊(ji)穿(chuan),它可能發生(sheng)在(zai)絕緣(yuan)(yuan)體的(de)(de)(de)(de)表面或(huo)(huo)內部(bu)(bu)(bu),即局(ju)(ju)(ju)部(bu)(bu)(bu)放(fang)電(dian)(dian)(dian)(dian)。然而電(dian)(dian)(dian)(dian)氣絕緣(yuan)(yuan)的(de)(de)(de)(de)破(po)壞或(huo)(huo)局(ju)(ju)(ju)部(bu)(bu)(bu)老化,多數是(shi)從(cong)局(ju)(ju)(ju)部(bu)(bu)(bu)放(fang)電(dian)(dian)(dian)(dian)開始的(de)(de)(de)(de),它的(de)(de)(de)(de)危害(hai)性(xing)突出表現在(zai)絕緣(yuan)(yuan)壽命迅速降低(di),較終(zhong)影響(xiang)安全運行。干式變壓(ya)器由于其先(xian)特的(de)(de)(de)(de)結構(高、低(di)壓(ya)繞組(zu)全部(bu)(bu)(bu)采用(yong)銅帶(箔(bo))繞成)和其先(xian)進的(de)(de)(de)(de)制造工藝(yi)水平(高、低(di)壓(ya)繞組(zu)全部(bu)(bu)(bu)在(zai)真空中澆注環氧樹(shu)脂并固化),使其局(ju)(ju)(ju)部(bu)(bu)(bu)放(fang)電(dian)(dian)(dian)(dian)值低(di)。
(2)耐(nai)雷電(dian)(dian)沖擊(ji)能力(li)強:由于(yu)高、低壓繞組(zu)全部采用銅帶(dai)(箔(bo))繞成(cheng),層間電(dian)(dian)壓低、電(dian)(dian)容(rong)大,箔(bo)式繞組(zu)起始電(dian)(dian)壓分布接近線性,因此其抗雷電(dian)(dian)沖擊(ji)能力(li)強
(3)抗短(duan)路能力強(qiang):由于高、低壓繞組電抗高度相同,無螺旋角現象,線(xian)圈間的(de)安匝平衡,高、低壓繞組因短(duan)路引(yin)起的(de)軸(zhou)向(xiang)力幾乎為零,因此(ci)其抗短(duan)路能力強(qiang)。
(4)抗龜裂(lie)性能(neng)好(hao):干式(shi)變(bian)壓器采用環氧樹脂“薄絕緣(1-3mm)技(ji)術(shu)”,滿足(zu)了(le)(le)低溫、高溫及溫度變(bian)化范圍大(da)的(de)(de)場合,滿足(zu)了(le)(le)長期運行后的(de)(de)抗開裂(lie)要求,解決了(le)(le)“厚(hou)絕緣(6mm)技(ji)術(shu)”難于解決的(de)(de)開裂(lie)問題,使干式(shi)變(bian)壓器在技(ji)術(shu)上得到可(ke)靠(kao)的(de)(de)保障。
(5)過(guo)負載(zai)能力強(qiang):若相同容(rong)量的變(bian)(bian)壓器(qi)負載(zai)損耗相等時(shi),則(ze)銅箔的面(mian)積將(jiang)比銅導體相應(ying)增大,體積增大后,填料樹(shu)脂用量相應(ying)增多,因此繞組(zu)熱(re)容(rong)性大,變(bian)(bian)壓器(qi)短時(shi)過(guo)載(zai)能力強(qiang)。
(6)阻燃(ran)性(xing)能好:采用環(huan)氧樹脂真(zhen)空澆注工藝無環(huan)境污染(ran),有利于(yu)環(huan)境保護,該變(bian)壓器具有免維(wei)護、防潮、抗濕熱、阻燃(ran)和自熄(xi)特性(xing),適用于(yu)各(ge)種環(huan)境及條件(jian)惡(e)劣的(de)場合。
(7)損耗(hao)(hao)低、噪聲低:鐵芯(xin)(xin)通(tong)常采(cai)用礦物氧化物絕緣的(de)優質冷軋硅鋼片(pian),通(tong)過先進的(de)加工工藝,使損耗(hao)(hao)水(shui)平和空載(zai)電流(liu)降(jiang)至較低,并取得非常低的(de)噪聲水(shui)平。同時裝配好的(de)鐵芯(xin)(xin),在其表(biao)面封(feng)涂F級樹(shu)脂漆,以防(fang)塵、防(fang)腐、防(fang)煙霧和銹蝕。
(8)耐(nai)溫等級(ji)高(gao):環氧(yang)樹脂干(gan)式變壓器屬于F級(ji)或(huo)H級(ji)絕緣,長期可在(zai)155℃或(huo)180℃高(gao)溫下安(an)全(quan)運(yun)行。在(zai)相同容量下,它(ta)的(de)體積小、重量輕,可節約安(an)裝費用(yong)等。
(9)相關技(ji)術規范:①容量≤10000KVA;②電壓≤35KV;③絕(jue)緣等級(ji)F級(ji)或(huo)H級(ji)。






