高压负荷开关fn7

fn7-12概述summaryfn7-12dr型交流高压负荷开关（以下简称负荷开关）是一种新型产气式户内高压负荷开关，适用于交流50hz，额定电压12kv的三相交流电力系统中，作为开断负荷电流及关合短路电流之用。fn7(c)-12型系列高压负荷及熔断器组合电器是在fn7-12系列高压负荷开关的基础上，增加侧面操作机构、使得安装更加简捷方便，能够满足广大用户的不同要求。fn7-12drisusedinthree-phaseacpowernetworkofac50hz、ratedvoltage12kvforbreakingloadcurrentandcontrollingshort-circuitcurrent.fn7(c)-12typeh.vloadswitchandfuseboxisbasiedonthefn7-12seriesh.vloadswitch.withoperatingmechanism.maketheinstallationmoresimpler.canmeetordersneeds.型号含义typeandmeaning额定电流（400,630a）电动分闸装置（有：f,无：空）撞击熔断器（有：a,无：空）熔断器负荷开关与接地开关联锁装置（有：l,无：空）接地开关位置（进线端：s，出线端：x）接地开关额定电压（kv）设计序号户内负荷开关ratedcurrentoffdevicebymotor(with:fwithout:blank)strikingfusebox(with:fwithout:blank)fuseboxinterlockgearbetweenloadswitchandearthswitch(with:l,without:blank)earthswitchposition(wire-inend:s,wire-outend:x)earthswitchratedvoltagedesignednumberindoorloadswitch正常工作环境normalservieccondition1、周围空气温度不高于+40oc不低于-25oc；2、海拔不超过1000米；3、相对湿度，日平均值不大于95%，月平均值不大于90%；4、周围空气应不受腐蚀性、可燃性气体及水蒸汽体等明显污染；5、无经常性的剧烈运动；1、thealtitudedoesnotexceed1000m.2、theambientairtemperatrue:max:+40oc.min:-25oc.3、therelatirehumidityofairdailyaverage&le；95%.monthlyaverage&le；90%4、theambientairshouldnotbeobviouslypollutedbycorrosivityortheflammabilitygassteam.etc.5、theworkingsituationwithoutfrequentviolent.概述summary类别classification全型号fulltypeds接地开关在线端earthswitchatthewire-inenddk接地开关在线端earthswitchatthewire-inendl联锁装置interlockdevicer熔断器fuseboxra撞击式熔断器stringfuseboxf电动分闸装置offdevicebymotor无脱扣器withouttripperfn7-12&mdash；&mdash；&mdash；&mdash；&mdash；&mdash；fn7-12dsl△&mdash；△&mdash；&mdash；&mdash；fn7-12dxl&mdash；△△&mdash；&mdash；&mdash；fn7-12r&mdash；&mdash；&mdash；△&mdash；&mdash；fn7-12dslr△&mdash；△△&mdash；&mdash；fn7-12dxlr&mdash；△△△&mdash；&mdash；带撞击脱扣器withstrikingtripper椀敬栠牥????o〨?fn7-12raf&mdash；&mdash；&mdash；&mdash；△△fn7-12dslraf△&mdash；△&mdash；△△fn7-12dxlraf&mdash；△△&mdash；△△额定参数specifiedparameter额定电压(kv)ratedvoltage最高电压（kv）max.voltage额定电流（a）ratedcurrent1min工频耐压（kv）1minpowerfrequencywithstandvoltage4s热稳定电流(有效值)(ka)4sheat-stablingcurrent(value)动稳定电流(峰值)(ka)machinestablingcurrent(peak)短路关合电流(ka)short-circuitcontrollingcurrent额定开断电流（a）ratedswitch-offcurrent额定转移电流（a）ratedtransfercurrent121240042/4812.531.531.5400100063042/482050506301000熔断器额定参数ratedparameteroffusebox型号ratedvoltage额定电压（kv）ratedcurrent额定电流（a）ratedswitch-offcurrent熔体的额定电流（a）fusebodyratedcurrentsdla*j12406.3,10,16,20,25,31.5,40sfla*j1210050,63,71,80,100skla*j12125125外形及安装图appearanceinstallationdiagram图1、无脱扣器"；线路"；负荷开关diagram1.loadswitchwithouttripper"；line"；图2、无脱扣器"；变压器保护"；负荷开关diagram2.loadswitchtripper"；transformerprotection"；外型及安装图appearanceinstallationdlagram图3、脱扣器撞击负荷开关diagram3.loadswitchwithtripperstriker图4、cs6操作机构安装示意图diagram4.installationdiagramofcs6operatingmechanismfn7(c)-12高压负荷开关fn7(c)-12h.v.loadswitchfn7(c)-12高压负荷开关与熔断器组合电器fn7(c)-12h.v.loadswitchwithfuseandwithoutfuse