電容柜是用來補償無功功率，提高電能質量，從而降低線路損耗。電容柜可以分為高壓電容補償柜和低壓電容補償柜兩種類(lei)型，二者(zhe)的(de)區別(bie)(bie)主要是(shi)投切變壓(ya)器(qi)(qi)(qi)級別(bie)(bie)不(bu)同，低壓(ya)電(dian)容補償裝置，是(shi)根據配電(dian)變壓(ya)器(qi)(qi)(qi)無功負荷(he)狀(zhuang)況，自動(dong)分(fen)步投切并聯(lian)在配電(dian)變壓(ya)器(qi)(qi)(qi)1kV及(ji)以下母線(xian)的(de)電(dian)容器(qi)(qi)(qi)組，這(zhe)篇(pian)文章我們來了解(jie)一下低壓(ya)電(dian)容柜(ju)的(de)基(ji)礎知識。

一、作用

在配(pei)電(dian)(dian)系(xi)統正常工(gong)作中，因(yin)(yin)電(dian)(dian)壓波動(dong)(dong)大(da)，無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)增(zeng)大(da)，浪費大(da)量(liang)電(dian)(dian)能(neng)(neng)，因(yin)(yin)此需要通(tong)過提(ti)供(gong)相應的(de)(de)額無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)，提(ti)高電(dian)(dian)能(neng)(neng)效(xiao)率(lv)。根據配(pei)電(dian)(dian)變壓器無(wu)功(gong)(gong)(gong)負荷(he)狀況(kuang)，自動(dong)(dong)分步投切(qie)并(bing)聯在配(pei)電(dian)(dian)變壓器1kV及以下(xia)母線的(de)(de)電(dian)(dian)容器組，提(ti)供(gong)相應的(de)(de)容性無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)，補(bu)償感性無(wu)功(gong)(gong)(gong)功(gong)(gong)(gong)率(lv)，改(gai)善功(gong)(gong)(gong)率(lv)因(yin)(yin)數(shu)，穩(wen)定系(xi)統電(dian)(dian)壓，從而(er)降(jiang)低線路損耗，提(ti)高變壓器傳輸容量(liang)，提(ti)高整體(ti)的(de)(de)電(dian)(dian)力傳輸效(xiao)率(lv)。同(tong)時具有負荷(he)監(jian)測(ce)功(gong)(gong)(gong)能(neng)(neng)，對電(dian)(dian)網運(yun)行狀況(kuang)進行實(shi)時監(jian)測(ce)，實(shi)現無(wu)功(gong)(gong)(gong)補(bu)償和配(pei)電(dian)(dian)監(jian)測(ce)二合一。

二、結構

低(di)壓電(dian)(dian)(dian)容(rong)補(bu)償裝(zhuang)置(zhi)一般由電(dian)(dian)(dian)抗器(qi)、電(dian)(dian)(dian)容(rong)器(qi)、隔離開(kai)關、熔(rong)(rong)斷(duan)器(qi)、接(jie)觸(chu)器(qi)、電(dian)(dian)(dian)流互(hu)感器(qi)、快熔(rong)(rong)等二(er)次元件等組(zu)成。圖(tu)片中這(zhe)款低(di)壓電(dian)(dian)(dian)容(rong)補(bu)償柜(ju)采用八(ba)(ba)個(ge)電(dian)(dian)(dian)抗器(qi)、八(ba)(ba)個(ge)電(dian)(dian)(dian)容(rong)器(qi)、八(ba)(ba)個(ge)接(jie)觸(chu)器(qi)以(yi)及八(ba)(ba)個(ge)熔(rong)(rong)斷(duan)器(qi)組(zu)成，合上刀熔(rong)(rong)開(kai)關和斷(duan)路器(qi)，控(kong)制器(qi)根據進線柜(ju)電(dian)(dian)(dian)壓和電(dian)(dian)(dian)流的相位差輸出控(kong)制信號，控(kong)制交(jiao)流接(jie)觸(chu)器(qi)閉合和斷(duan)開(kai)，從而控(kong)制電(dian)(dian)(dian)容(rong)器(qi)投(tou)入和退出。

三、使用條件

最高(gao)運行電壓≤1.1Un;

最大過載電流≤1.31 n;

周圍環(huan)境溫度-25~+45℃；

室內相對濕度不超過90%(溫度為25℃時)；

安裝地點(dian)海(hai)拔(ba)高(gao)度不超過2000m;沒有(you)劇烈的(de)振動，垂(chui)直傾斜度不超過5度；

沒有(you)導電性塵埃(ai)、火災、爆炸危險；沒有(you)足以腐蝕金屬和破壞絕緣的氣體。

低壓電容補償柜根據補償的對象不同分為自動補償裝置和動態補償裝置，高壓電容補償裝置可以分為就地補償、集中補償、以及自動補償等，在選擇合適的電容補償裝置時，需要根據系統和負載的性質、大小、阻抗特性、運行方式等多方面因素。以上就是得潤電氣電(dian)容柜廠家(jia)小編分(fen)享(xiang)的(de)電(dian)氣(qi)知(zhi)識。

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