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大(da)量批發GFSBJ工頻(pin)高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)GFSBJ 工頻(pin)高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)是在(zai)同類產(chan)品(pin)(pin)YDJ型高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)的基礎上,按試(shi)驗(yan)(yan)(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)國家標準DL/T848.2-2004要(yao)求,經改進后生(sheng)產(chan)的一種高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)(yan)變(bian)壓(ya)(ya)(ya)器(qi)(qi)產(chan)品(pin)(pin),本系(xi)列產(chan)品(pin)(pin)與同類YDJ型產(chan)品(pin)(pin)相比較具有體(ti)積(ji)小、重(zhong)量輕、結構緊湊、運輸方便等特點(dian)。實(shi)用于電力、工礦(kuang)、科研(yan)等部門,對各(ge)種高(gao)(gao)(gao)壓(ya)(ya)(ya)電氣設備、電氣元(yuan)件(jian)、絕緣材(cai)料進行工頻(pin)耐壓(ya)(ya)(ya)試(shi)驗(yan)(yan)(yan),它(ta)是高(gao)(gao)(gao)壓(ya)(ya)(ya)試(shi)驗(yan)(yan)(yan)中*的儀器(qi)(qi)。
更新時間:2017-08-18
訪問次數:753
GFSBJ工頻高壓試驗變壓器
GFSBJ 工頻高(gao)(gao)壓試(shi)驗(yan)(yan)變(bian)壓器(qi)是(shi)在(zai)同(tong)類(lei)產品YDJ型(xing)高(gao)(gao)壓試(shi)驗(yan)(yan)變(bian)壓器(qi)的基礎上,按試(shi)驗(yan)(yan)變(bian)壓器(qi)國家(jia)標(biao)準DL/T848.2-2004要(yao)求(qiu),經(jing)改進后生(sheng)產的一種高(gao)(gao)壓試(shi)驗(yan)(yan)變(bian)壓器(qi)產品,本系列產品與同(tong)類(lei)YDJ型(xing)產品相比較具有體(ti)積小(xiao)、重量輕、結構緊湊、運輸(shu)方便等特點。實用于電(dian)力、工礦(kuang)、科研等部(bu)門,對(dui)各種高(gao)(gao)壓電(dian)氣設備、電(dian)氣元(yuan)件、絕緣(yuan)材料進行工頻耐壓試(shi)驗(yan)(yan),它是(shi)高(gao)(gao)壓試(shi)驗(yan)(yan)中(zhong)*的儀器(qi)。
GFSBJ工頻高壓試驗變壓器
工作(zuo)原(yuan)理:
GFSBJ 高壓(ya)(ya)試(shi)驗(yan)(yan)(yan)變壓(ya)(ya)器(qi)為單相變壓(ya)(ya)器(qi),聯結組標號II。單臺試(shi)驗(yan)(yan)(yan)變壓(ya)(ya)器(qi)的(de)(de)工作過程(cheng),用交(jiao)流380V電(dian)(dian)壓(ya)(ya)接入電(dian)(dian)源控(kong)制臺,經電(dian)(dian)源控(kong)制臺內自(zi)藕調(diao)壓(ya)(ya)器(qi)(50KVA以(yi)上調(diao)壓(ya)(ya)器(qi)外附(fu))調(diao)節(jie)0~400V電(dian)(dian)壓(ya)(ya)至高壓(ya)(ya)試(shi)驗(yan)(yan)(yan)變壓(ya)(ya)器(qi)的(de)(de)初級繞組,根據電(dian)(dian)磁感應原理,在試(shi)驗(yan)(yan)(yan)變壓(ya)(ya)器(qi)高壓(ya)(ya)繞組可獲得試(shi)驗(yan)(yan)(yan)所需的(de)(de)高電(dian)(dian)壓(ya)(ya)。
產(chan)品結構(gou):
GFSBJ 工頻高(gao)壓試驗(yan)變壓器(qi)鐵芯(xin)為單框(kuang)式。線圈采用同芯(xin)圓筒多層塔式結構,初級低(di)壓繞(rao)組(zu)繞(rao)在鐵芯(xin)上,次級高(gao)壓繞(rao)組(zu)繞(rao)在低(di)壓繞(rao)組(zu)外側,這種同軸布(bu)置減少了繞(rao)組(zu)間的(de)藕(ou)合損耗。產品(pin)的(de)外殼制成與器(qi)芯(xin)配合較佳的(de)八角(jiao)形結構,整體外型美觀大(da)方。
GFSBJ工頻高壓試驗變壓器
技術指標:
1、使用環境條件
環境溫度不高于+40℃、不低于—20℃;
空氣相對濕度不大于90%;
海拔高度不超過3500米;
2、工作(zuo)電(dian)壓
電源(yuan)控(kong)制(zhi)箱(臺)輸入電壓為工頻220V或380V、相(xiang)對誤差不(bu)超過±10%;(具體使(shi)用電壓根據用戶所定(ding)試(shi)驗變壓器(qi)規格選取)
試驗變壓器的選擇
其高壓側額定電(dian)壓應不小于(yu)被試品的(de)***高試驗(yan)電(dian)壓,額定電(dian)流不小于(yu)被試品的(de)***大電(dian)容電(dian)流。
被試品的電容電流和試驗變壓器所需容量計算公式為:
I = 2π f Cx U × 10 -6
U I = 2π f Cx U 2 × 10 -9
式中(zhong) :I — 被試品(pin)電容(rong)電流,A ;
f — 電源頻率, Hz;
Cx — 被(bei)試品電容(rong)量,μF ;
U — 試驗電壓有效值,V;
Se — 試驗變壓器所需額定容量, KVA
被試品電容(rong)(rong)量(liang)Cx可由交流電橋測出(chu)。常用的被試品電容(rong)(rong)量(liang)按下表(biao)選取。