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試驗變壓器基本組成形式有哪些

更新時間:2024-02-05      瀏覽次數:218

揚州豪(hao)泰生產(chan)的包括兩組繞有(you)導線(xian)(xian)之線(xian)(xian)圈(quan)(quan),并且彼此以(yi)電(dian)感方式稱合一(yi)起(qi)。當一(yi)交流(liu)(liu)電(dian)流(liu)(liu)(具有(you)某一(yi)已知頻率)流(liu)(liu)于其中之一(yi)組線(xian)(xian)圈(quan)(quan)時,于另一(yi)組線(xian)(xian)圈(quan)(quan)中將(jiang)感應出具有(you)相同頻率之交流(liu)(liu)電(dian)壓,而感應的電(dian)壓大小取決于兩線(xian)(xian)圈(quan)(quan)耦合及磁交鏈之程度。

一般指連接交(jiao)流電(dian)源(yuan)的(de)線(xian)(xian)(xian)圈稱之為"一次(ci)(ci)(ci)線(xian)(xian)(xian)圈"(Primarycoil);而跨(kua)于(yu)此線(xian)(xian)(xian)圈的(de)電(dian)壓(ya)稱之為"一次(ci)(ci)(ci)電(dian)壓(ya)."。在二(er)次(ci)(ci)(ci)線(xian)(xian)(xian)圈的(de)感應電(dian)壓(ya)可能大于(yu)或小于(yu)一次(ci)(ci)(ci)電(dian)壓(ya),是由一次(ci)(ci)(ci)線(xian)(xian)(xian)圈與二(er)次(ci)(ci)(ci)線(xian)(xian)(xian)圈問的(de)"匝數比"所決(jue)定的(de)。因此,變壓(ya)器區分(fen)為升壓(ya)與降(jiang)壓(ya)變壓(ya)器兩種。

大部份的(de)(de)試(shi)驗變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)均有固(gu)定的(de)(de)鐵芯,其上繞有一次與(yu)二次的(de)(de)線(xian)(xian)圈(quan)(quan)。基于鐵材的(de)(de)高(gao)導(dao)磁性,大部份磁通量(liang)局限(xian)在鐵芯里,因(yin)此(ci)(ci),兩組線(xian)(xian)圈(quan)(quan)藉(jie)此(ci)(ci)可(ke)以獲得(de)相(xiang)(xiang)當(dang)高(gao)程(cheng)度之(zhi)磁耦合(he)。在一些變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)中,線(xian)(xian)圈(quan)(quan)與(yu)鐵芯二者間(jian)緊密地(di)結合(he),其一次與(yu)二次電(dian)壓(ya)(ya)(ya)(ya)的(de)(de)比值幾乎與(yu)二者之(zhi)線(xian)(xian)圈(quan)(quan)匝數比相(xiang)(xiang)同。因(yin)此(ci)(ci),變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)之(zhi)匝數比,一般可(ke)作為(wei)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)升(sheng)壓(ya)(ya)(ya)(ya)或(huo)降壓(ya)(ya)(ya)(ya)的(de)(de)參考(kao)指標。由于此(ci)(ci)項升(sheng)壓(ya)(ya)(ya)(ya)與(yu)降壓(ya)(ya)(ya)(ya)的(de)(de)功能,使(shi)得(de)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi)已成為(wei)現(xian)代化(hua)電(dian)力系統之(zhi)一重要附(fu)屬(shu)物,提(ti)升(sheng)輸(shu)電(dian)電(dian)壓(ya)(ya)(ya)(ya)使(shi)得(de)長途輸(shu)送電(dian)力更為(wei)經(jing)濟,至于降壓(ya)(ya)(ya)(ya)變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi),它(ta)使(shi)得(de)電(dian)力運(yun)用方面(mian)更加多元化(hua),吾人(ren)可(ke)以如是說,倘無變(bian)(bian)壓(ya)(ya)(ya)(ya)器(qi)(qi)(qi),則現(xian)代工業實無法達到(dao)目前發(fa)展的(de)(de)現(xian)況(kuang)。

電(dian)(dian)(dian)子變壓器(qi)除了體積較(jiao)小(xiao)外,在電(dian)(dian)(dian)力(li)變壓器(qi)與電(dian)(dian)(dian)子變壓器(qi)二者之間,并沒有(you)(you)明確的分界線。一般(ban)提供6TBL_0Hz電(dian)(dian)(dian)力(li)網絡之電(dian)(dian)(dian)源均非常龐大,它可(ke)能是涵蓋有(you)(you)半個(ge)洲地區那般(ban)大的容量。電(dian)(dian)(dian)子裝置的電(dian)(dian)(dian)力(li)限制,通常受限于整流、放(fang)大,與系(xi)統其它組(zu)件的能力(li),其中有(you)(you)些部份屬放(fang)大電(dian)(dian)(dian)力(li)者,但如與電(dian)(dian)(dian)力(li)系(xi)統發(fa)電(dian)(dian)(dian)能力(li)相比(bi)較(jiao),它仍然歸屬于小(xiao)電(dian)(dian)(dian)力(li)之范圍。

各(ge)種(zhong)電(dian)子裝備常用到變(bian)壓器,理(li)由是:提(ti)(ti)供(gong)各(ge)種(zhong)電(dian)壓階層(ceng)確保系(xi)統正常操作(zuo)(zuo);提(ti)(ti)供(gong)系(xi)統中以不(bu)同電(dian)位(wei)操作(zuo)(zuo)部份(fen)得以電(dian)氣隔離;對(dui)交流(liu)電(dian)流(liu)提(ti)(ti)供(gong)高阻(zu)(zu)抗(kang),但(dan)對(dui)直流(liu)則提(ti)(ti)供(gong)低的阻(zu)(zu)抗(kang);在(zai)不(bu)同的電(dian)位(wei)下,維持(chi)或修飾波形(xing)與頻率響應。"阻(zu)(zu)抗(kang)"其中之一(yi)項(xiang)重要概念,亦即(ji)電(dian)子學特性之一(yi),其乃預設一(yi)種(zhong)設備,即(ji)當電(dian)路組件阻(zu)(zu)抗(kang)系(xi)從一(yi)階層(ceng)改變(bian)到另外(wai)的一(yi)個階層(ceng)時(shi),其間即(ji)使用到一(yi)種(zhong)設備-變(bian)壓器。

對于電子裝置而言,重量和(he)空間通常(chang)是一項(xiang)努力(li)追求(qiu)之目標,至于效(xiao)率(lv)、安全性與可靠(kao)性,更是重要的(de)考慮因素。試驗變壓器(qi)除了(le)能夠在一個系統里占有顯著百分比(bi)的(de)重量和(he)空間外,另一方(fang)面(mian)(mian)在可靠(kao)性方(fang)面(mian)(mian),它(ta)亦是衡(heng)量因子中之一要項(xiang)。因為上述與其它(ta)應用方(fang)面(mian)(mian)的(de)差別,使得(de)電力(li)變壓器(qi)并不適(shi)合應用于電子電路上。


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