為什么串聯電抗器上的電壓降較大？

串聯電抗器在電力系統(tong)中的(de)主要(yao)用途(tu)：

當電(dian)力系統發生短路(lu)(lu)(lu)時(shi)，會(hui)產生很大(da)的短路(lu)(lu)(lu)電(dian)流(liu)。為了保(bao)(bao)證電(dian)氣(qi)(qi)設(she)備的動(dong)態(tai)和熱穩定性，在出(chu)線(xian)斷路(lu)(lu)(lu)器上常接串聯電(dian)抗(kang)器，以增加短路(lu)(lu)(lu)阻抗(kang)，限制短路(lu)(lu)(lu)電(dian)流(liu)。由于采(cai)用串聯電(dian)抗(kang)器，在發生短路(lu)(lu)(lu)時(shi)串聯電(dian)抗(kang)器的電(dian)壓降較大(da)，對維(wei)持母線(xian)電(dian)壓、減(jian)小母線(xian)電(dian)壓波動(dong)、保(bao)(bao)證非故(gu)障線(xian)路(lu)(lu)(lu)電(dian)氣(qi)(qi)設(she)備的穩定性也(ye)有一定的作用。

由于(yu)(yu)在電力系(xi)統中使(shi)(shi)(shi)用(yong)大(da)量(liang)的(de)(de)功率電子器(qi)(qi)(qi)(qi)(qi)(qi)件，尤其是大(da)功率直流和變(bian)頻設備，產生大(da)量(liang)的(de)(de)諧(xie)波(bo)，使(shi)(shi)(shi)得補(bu)償(chang)電容(rong)器(qi)(qi)(qi)(qi)(qi)(qi)經常(chang)受到損(sun)壞，甚至補(bu)償(chang)電容(rong)器(qi)(qi)(qi)(qi)(qi)(qi)也不能被放入補(bu)償(chang)電容(rong)器(qi)(qi)(qi)(qi)(qi)(qi)中。諧(xie)波(bo)小，可使(shi)(shi)(shi)用(yong)諧(xie)波(bo)抑制(zhi)器(qi)(qi)(qi)(qi)(qi)(qi)，電力系(xi)統中的(de)(de)諧(xie)波(bo)較高(gao)，串聯電抗器(qi)(qi)(qi)(qi)(qi)(qi)可串聯使(shi)(shi)(shi)用(yong)，電網中的(de)(de)高(gao)次(ci)諧(xie)波(bo)可串聯或(huo)并(bing)聯于(yu)(yu)濾(lv)波(bo)器(qi)(qi)(qi)(qi)(qi)(qi)中的(de)(de)電容(rong)器(qi)(qi)(qi)(qi)(qi)(qi)。

隨著(zhu)中國工礦(kuang)企業(ye)電(dian)(dian)(dian)動機(ji)功率的(de)不斷提高，電(dian)(dian)(dian)壓水平不斷提高，啟動電(dian)(dian)(dian)流也在不斷增加。為了保護電(dian)(dian)(dian)動機(ji)免受浪涌(yong)電(dian)(dian)(dian)流的(de)損壞并限制其啟動電(dian)(dian)(dian)流，通常使用串聯電(dian)(dian)(dian)抗器和電(dian)(dian)(dian)動機(ji)。在系列中。

隨著我國工礦企業大功(gong)(gong)(gong)(gong)率(lv)非線(xian)性負(fu)荷(he)(he)的增加，電(dian)(dian)網中的無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)沖擊和諧波(bo)污(wu)染越(yue)來越(yue)大，對煤礦電(dian)(dian)力系統(tong)無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)的需(xu)求(qiu)(qiu)也越(yue)來越(yue)大。無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)平衡(heng)對提高電(dian)(dian)力系統(tong)的經濟效益(yi)和供(gong)電(dian)(dian)質量至關重要(yao)。同時，要(yao)求(qiu)(qiu)能(neng)動(dong)態調節并在峰(feng)值負(fu)荷(he)(he)下(xia)提供(gong)更多的容性無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)，以(yi)滿足工礦企業的無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)需(xu)求(qiu)(qiu)，穩定系統(tong)電(dian)(dian)壓。另一方(fang)面，還需(xu)要(yao)提供(gong)感應無(wu)(wu)(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)，以(yi)平衡(heng)輕負(fu)載(zai)下(xia)的大量電(dian)(dian)力。電(dian)(dian)纜的充電(dian)(dian)電(dian)(dian)源(yuan)確保(bao)系統(tong)電(dian)(dian)壓不(bu)過高。由電(dian)(dian)容器(qi)和串(chuan)聯電(dian)(dian)抗器(qi)組(zu)成的LC串(chuan)聯電(dian)(dian)路具有抑制一定頻率(lv)諧波(bo)的功(gong)(gong)(gong)(gong)能(neng)。通常采用低(di)壓串(chuan)聯電(dian)(dian)抗器(qi)來抑制三(san)、四、五次諧波(bo)。

      在這里我推薦蘇州谷明電氣有限公司「谷明電氣」是一家集研發,生產,銷售和技術服務為一體的綜合企業,主要生產與銷售產品有:隔離變壓器,感應調壓器,隧道專用升壓器,串聯電抗器,大功率補(bu)償(chang)穩壓器.