概述 FN18-12系列户内高压负荷开关,具有设计先进、操作简便、结构紧凑、体积小、功能全、重量轻、分合速度快、可靠性高等优点。适用于交流50Hz,额定电压12KV、额定电流630A及三相配电系统中,特别适用于城网建设改造工程,高层建筑,公共设施的环网供电,是箱式变电站、变压器保护的理想产品。主要技术参数序号项目电位FN18-12D/630FN18-12DR/100-31.51额定电压KV122额定频率Hz503额定电流A63010041min工频耐受电压kv对地及相间42;隔离断口48雷电冲击耐受电压对地及相间75;隔离断口855相间距离mm1706额定动稳定电流KA50 7额定热稳定电流KA/S20/2 8额定电缆充电电流A109额定转移电流 160010开断空载变压器容量KVA125011额定短路开断电流(熔断值)KA 31.5-5012额定短路关合电流(峰值)5013额定有功负载开断电流630 14接地开关额定热稳定电流KA/S16/215额定有功负载电流开断次数 10016机械寿命2000外形图
Summary It is used in three-phase power distribuiton of AC 50Hz rated voltage 12kv.rated current 630A Esp For power ring network in city net work construction improvement high-rise buildings.public facilities as an ideal product to protect package substation.transformer It has the featrres of advanced design simple operation impact structruee smatr appearancelight weight complete function fast on-and off speed.high reliability.