1、電容器組(zu)應(ying)采用(yong)適當保(bao)(bao)護措施(shi),如(ru)采用(yong)平衡(heng)或(huo)差動(dong)繼電(dian)(dian)保(bao)(bao)護或(huo)采用(yong)瞬(shun)時作(zuo)用(yong)過電(dian)(dian)流(liu)繼電(dian)(dian)保(bao)(bao)護,對于3.15kV及(ji)以(yi)上的電(dian)(dian)容器(qi),需在每(mei)個電(dian)(dian)容器(qi)上裝(zhuang)置(zhi)單獨(du)的熔斷器(qi),熔斷器(qi)的額定電(dian)(dian)流(liu)應(ying)按熔絲的特性和接通時的涌流(liu)來選定,一(yi)般為(wei)1.5倍電(dian)(dian)容器(qi)的額定電(dian)(dian)流(liu)為(wei)宜,以(yi)防止電(dian)(dian)容器(qi)油箱爆炸。
2、除上述指出的(de)保(bao)護形式外(wai),在必要時還可以作下面的(de)幾種保(bao)護:
4、電(dian)(dian)容(rong)(rong)(rong)器不允許裝(zhuang)(zhuang)設自(zi)動(dong)重合(he)閘(zha)裝(zhuang)(zhuang)置,相反(fan)(fan)應裝(zhuang)(zhuang)設無壓(ya)釋放自(zi)動(dong)跳(tiao)閘(zha)裝(zhuang)(zhuang)置。主要(yao)是因電(dian)(dian)容(rong)(rong)(rong)器放電(dian)(dian)需要(yao)一定時間(jian),當電(dian)(dian)容(rong)(rong)(rong)器組的(de)開關(guan)跳(tiao)閘(zha)后,如(ru)果馬(ma)上重合(he)閘(zha),電(dian)(dian)容(rong)(rong)(rong)器是來不及放電(dian)(dian)的(de),在電(dian)(dian)容(rong)(rong)(rong)器中就可(ke)能殘存著與重合(he)閘(zha)電(dian)(dian)壓(ya)極性相反(fan)(fan)的(de)電(dian)(dian)荷,這將使合(he)閘(zha)瞬(shun)間(jian)產生很大的(de)沖(chong)擊電(dian)(dian)流,從而造成電(dian)(dian)容(rong)(rong)(rong)器外殼膨脹、噴油甚(shen)至爆(bao)炸。
希拓電(dian)氣德國原裝低壓并聯電(dian)力電(dian)容器采用(yong)金屬化聚丙烯薄膜卷制而成,特殊噴金工藝,圓柱型(xing)鋁外殼結構,保證性能和質量的穩定。在電力系統中能提高有效功率,降低無功損耗,進行無功補償,節約電力能源。根據場合不同又分為單相電容器和三相電容器。如(ru)有(you)相關需求,歡迎來電咨詢(xun)!