電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)(liang)直(zhi)接(jie)關系(xi)到電(dian)(dian)(dian)(dian)(dian)力系(xi)統(tong)的(de)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)安全和(he)供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)質量(liang)(liang)(liang)，從技(ji)術(shu)上講，影響(xiang)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)(liang)監測(ce)的(de)因(yin)素主要包(bao)括(kuo)三個(ge)方(fang)面：一個(ge)是(shi)(shi)自然(ran)現(xian)象的(de)因(yin)素，如雷擊(ji)、風(feng)暴、雨雪等(deng)對電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)(liang)的(de)影響(xiang)，使(shi)電(dian)(dian)(dian)(dian)(dian)網(wang)發生(sheng)事故(gu),造成供(gong)(gong)電(dian)(dian)(dian)(dian)(dian)可靠性降低(di)。其次(ci)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)力設備(bei)及裝置的(de)自動(dong)(dong)保(bao)護及正常運行的(de)因(yin)素，如大型(xing)電(dian)(dian)(dian)(dian)(dian)力設備(bei)的(de)啟動(dong)(dong)和(he)停運，自動(dong)(dong)開關的(de)跳(tiao)閘(zha)及重(zhong)合等(deng)對電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)質量(liang)(liang)(liang)的(de)影響(xiang)，使(shi)額定電(dian)(dian)(dian)(dian)(dian)壓暫時降低(di)，產生(sheng)波動(dong)(dong)與閃(shan)變等(deng)。

汽車(che)焊接車(che)間(jian)無功補償模組優缺點分析

靜態投切使用：電(dian)容(rong)投切專用接觸(chu)(chu)器(qi)(qi)，此(ci)種接觸(chu)(chu)器(qi)(qi)采用延時投切技術控(kong)制(zhi)電(dian)容(rong)器(qi)(qi)投切時涌(yong)流(liu)的出現(xian)。控(kong)制(zhi)器(qi)(qi)通(tong)過無源觸(chu)(chu)點控(kong)制(zhi)接觸(chu)(chu)器(qi)(qi)。配套(tao)保護裝(zhuang)置由做無功(gong)補(bu)(bu)償整柜方做柜子(zi)時提(ti)(ti)供，一般補(bu)(bu)償供應商提(ti)(ti)供：電(dian)容(rong)器(qi)(qi)+電(dian)抗器(qi)(qi)+投切開關+功(gong)率因數(shu)控(kong)制(zhi)器(qi)(qi)；由成套(tao)商提(ti)(ti)供補(bu)(bu)償柜內其他保護元件，組(zu)成柜體供給客戶(hu)。

欠補(bu)償：補(bu)償的(de)(de)電(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)流(liu)(liu)(liu)要求小于(yu)被(bei)抵(di)消的(de)(de)電(dian)(dian)(dian)感電(dian)(dian)(dian)流(liu)(liu)(liu)。補(bu)償后(hou)仍存在一定數(shu)量的(de)(de)感性無(wu)功(gong)電(dian)(dian)(dian)流(liu)(liu)(liu)，令(ling)cosφ小于(yu)1但接近1。全補(bu)償：按照(zhao)感性實際負(fu)(fu)荷(he)(he)電(dian)(dian)(dian)流(liu)(liu)(liu)配(pei)置電(dian)(dian)(dian)容(rong)器，IC=IL將(jiang)感性電(dian)(dian)(dian)流(liu)(liu)(liu)用(yong)容(rong)性電(dian)(dian)(dian)流(liu)(liu)(liu)全部(bu)抵(di)消掉，令(ling)cosφ等于(yu)1。過補(bu)償：大量投(tou)入電(dian)(dian)(dian)容(rong)器，在全部(bu)抵(di)消掉電(dian)(dian)(dian)感電(dian)(dian)(dian)流(liu)(liu)(liu)后(hou)，還剩余一部(bu)分電(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)流(liu)(liu)(liu)，此時原(yuan)感性負(fu)(fu)載轉化為容(rong)性負(fu)(fu)荷(he)(he)性質。功(gong)率因(yin)數(shu)cosφ仍然小于(yu)1。