電(dian)(dian)能(neng)質量的(de)(de)(de)(de)好壞(huai),直接影響到工(gong)業產品的(de)(de)(de)(de)質量。隨著科學技術的(de)(de)(de)(de)發(fa)展,隨著工(gong)業生產水平(ping)和人民生活水平(ping)的(de)(de)(de)(de)提高,非線性用電(dian)(dian)設備在(zai)電(dian)(dian)網(wang)中大(da)量投運(yun),造成了(le)電(dian)(dian)網(wang)的(de)(de)(de)(de)諧(xie)波(bo)分量占的(de)(de)(de)(de)比重越來越大(da)。它不僅增加了(le)電(dian)(dian)網(wang)的(de)(de)(de)(de)供電(dian)(dian)損(sun)耗,而且干(gan)擾電(dian)(dian)網(wang)的(de)(de)(de)(de)保(bao)護裝(zhuang)(zhuang)置與自動化裝(zhuang)(zhuang)置的(de)(de)(de)(de)正常(chang)運(yun)行,造成了(le)這些(xie)裝(zhuang)(zhuang)置的(de)(de)(de)(de)誤(wu)動與拒動,直接威脅電(dian)(dian)網(wang)的(de)(de)(de)(de)安全運(yun)行。
4、采取技術措(cuo)施(shi)加(jia)強電(dian)(dian)力電(dian)(dian)容(rong)器(qi)(qi)(qi)(qi)(qi)管(guan)理(li)。由于當頻(pin)率增加(jia)時電(dian)(dian)容(rong)性電(dian)(dian)抗(kang)(kang)就減少的特(te)性,電(dian)(dian)容(rong)器(qi)(qi)(qi)(qi)(qi)對供電(dian)(dian)電(dian)(dian)壓的諧(xie)波(bo)分量(liang)特(te)別敏感,即相對較(jiao)小比例的諧(xie)波(bo)電(dian)(dian)壓可(ke)以引起很大的電(dian)(dian)流(liu)流(liu)入(ru)電(dian)(dian)容(rong)回路(lu)。如(ru)果電(dian)(dian)容(rong)器(qi)(qi)(qi)(qi)(qi)組或電(dian)(dian)力系(xi)統所連(lian)接的電(dian)(dian)抗(kang)(kang)的自然頻(pin)率接近與一個特(te)定的諧(xie)波(bo),就會發生局部諧(xie)振,在這種(zhong)情(qing)況(kuang)下,增高的電(dian)(dian)流(liu)就會引起電(dian)(dian)容(rong)器(qi)(qi)(qi)(qi)(qi)的過熱,可(ke)以采用(yong)以下的方法:①并聯(lian)諧(xie)波(bo)濾波(bo)器(qi)(qi)(qi)(qi)(qi)或諧(xie)波(bo)抑制電(dian)(dian)抗(kang)(kang)器(qi)(qi)(qi)(qi)(qi);②有源電(dian)(dian)力濾波(bo)器(qi)(qi)(qi)(qi)(qi);③混和(he)濾波(bo)器(qi)(qi)(qi)(qi)(qi)。
希拓電氣創立于2014年,是一家集研發、生產、銷售和服務于一體的高新技術企業,致力于為客戶提供一流的電能質量解決方案,旗下有希拓電氣(上海)有限公司、希拓電氣(常州)有限公司。主要產品包括:電容器、電抗器、晶閘管投切模塊,無功功率控制器、低壓無功補償成套裝置、有源電力濾波器、靜止無(wu)功發(fa)生器及諧波保護(hu)器等。