隨著電(dian)(dian)力電(dian)(dian)子(zi)技術，特別是(shi)大(da)功(gong)(gong)率(lv)(lv)可(ke)關斷(duan)器件(jian)技術的發(fa)展和日益完善，國(guo)內(nei)外還(huan)在研制、開發(fa)一種更為(wei)先進的靜止無功(gong)(gong)功(gong)(gong)率(lv)(lv)發(fa)生(sheng)裝置(SVG)，SVG憑借著其優越的性能(neng)特點(dian)，在電(dian)(dian)力系統中的應用將越來(lai)越廣泛。電(dian)(dian)網(wang)輸出(chu)的功(gong)(gong)率(lv)(lv)包括兩部分(fen)：有功(gong)(gong)功(gong)(gong)率(lv)(lv)和無功(gong)(gong)功(gong)(gong)率(lv)(lv)。有功(gong)(gong)功(gong)(gong)率(lv)(lv)是(shi)指直接消耗電(dian)(dian)能(neng)，把(ba)電(dian)(dian)能(neng)轉(zhuan)變(bian)(bian)為(wei)機械能(neng)、熱能(neng)或化學能(neng)，利用這(zhe)部分(fen)能(neng)量作功(gong)(gong)。而無功(gong)(gong)功(gong)(gong)率(lv)(lv)則是(shi)指為(wei)建立交變(bian)(bian)磁(ci)場所需要的電(dian)(dian)功(gong)(gong)率(lv)(lv)，這(zhe)部分(fen)電(dian)(dian)能(neng)并不做功(gong)(gong)。

變壓器(qi)無功補償的必要性

繼電(dian)(dian)(dian)(dian)器(qi)與交流接(jie)(jie)觸器(qi)相配合組成(cheng)漏(lou)電(dian)(dian)(dian)(dian)保(bao)護裝置，適(shi)用于電(dian)(dian)(dian)(dian)源系統中性點直(zhi)接(jie)(jie)接(jie)(jie)地，低壓(ya)（380、220V）配電(dian)(dian)(dian)(dian)系統中，作間接(jie)(jie)接(jie)(jie)觸保(bao)護。在線路(lu)漏(lou)電(dian)(dian)(dian)(dian)流很小的(de)場合，當(dang)其(qi)它保(bao)護失敗時，漏(lou)電(dian)(dian)(dian)(dian)保(bao)護裝置提(ti)供直(zhi)接(jie)(jie)觸保(bao)護。安全、省(sheng)電(dian)(dian)(dian)(dian)、方便、抗擊。

提升機(ji)作為大功(gong)率、頻繁(fan)啟動、周期性沖(chong)擊負(fu)荷以(yi)及采用硅整流(liu)裝置對電網(wang)造(zao)成的(de)無(wu)功(gong)沖(chong)擊和高(gao)次(ci)諧波(bo)污染等危害不僅危及電網(wang)安全，同時也造(zao)成提升機(ji)過(guo)電流(liu)、欠電壓等緊(jin)停故障的(de)發(fa)生，影響了(le)礦井生產。因(yin)此對提升機(ji)供電系統進(jin)行(xing)無(wu)功(gong)動態補(bu)償(chang)和高(gao)次(ci)諧波(bo)治理(li)，對于提高(gao)礦井提升機(ji)和電網(wang)的(de)安全運行(xing)可靠性、提高(gao)企業(ye)的(de)經(jing)濟(ji)效益意義巨大。