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ZCD-1A差(cha)動(dong)(dong)繼電器(qi)(qi),ZCD-1B差(cha)動(dong)(dong)繼電器(qi)(qi) ZCD-1A差(cha)動(dong)(dong)繼電器(qi)(qi),  ZCD-1B差(cha)動(dong)(dong)繼電器(qi)(qi)

用于大型交流發(fa)電(dian)機(ji)單相差(cha)動保(bao)(bao)護線(xian)路中作(zuo)為主保(bao)(bao)護。 LCD-8差(cha)動繼電(dian)器(qi)(qi),LCD-8A差(cha)動繼電(dian)器(qi)(qi)

用于變(bian)(bian)壓(ya)器(qi)(qi)差(cha)動(dong)(dong)保護線路(lu)中(zhong)，作為主保護，繼電(dian)器(qi)(qi)適用于雙繞(rao)組和三(san)繞(rao)組電(dian)力變(bian)(bian)壓(ya)器(qi)(qi)，實現一側(ce)至四(si)側(ce)制(zhi)動(dong)(dong)，且能在20%~50%變(bian)(bian)壓(ya)器(qi)(qi)額定電(dian)流下動(dong)(dong)作。 LCD-4差(cha)動(dong)(dong)繼電(dian)器(qi)(qi),LCD-4A差(cha)動(dong)(dong)繼電(dian)器(qi)(qi)

LCD-3A型縱(zong)聯差動繼(ji)(ji)電器可用(yong)于大(da)小(xiao)接地電流系統(tong)中的短距離(li)輸電線(xian)路(10km 以下(xia))作(zuo)為主保(bao)護，當(dang)被(bei)保(bao)護線(xian)路發生(sheng)相間或接地故障時，繼(ji)(ji)電器能保(bao)證全線(xian)快速切除故障。 LCD-3A差動繼(ji)(ji)電器,LCD-3A差動繼(ji)(ji)電器

LCD-1A差(cha)動繼電(dian)(dian)器用于交流發電(dian)(dian)機的單(dan)相(xiang)差(cha)動保(bao)護線路(lu)，作為主保(bao)護  LCD-1A型(xing)差(cha)動繼電(dian)(dian)器