FN7-12DR 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。FN7-12DR is used in three-phase AC power network of AC 50Hz、rated voltage 12KV for breaking load current and controlling short-circuit current.FN7(C)-12 type H.V load switch and fuse box is basied on the FN7-12 series H.V load switch. with operating mechanism. Make the installation more simpler. Can meet orders needs. 型号含义Type and meaning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Rated currentOff device by motor(with:F without:blank)Striking fuse box (with:F without:blank)fuse boxInterlock gear between load switch and earth switch(with:L,without:blank)Earth switch position(wire-in end:S,wire-out end:X)Earth switchRated voltageDesigned numberIndoor load switch正常工作环境Normal Serviec Condition1、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、The altitude does not exceed 1000m.2、The ambient air temperatrue : Max:+40oC. Min:-25oC.3、The relatire humidity of air Daily average ≤95% . Monthly average ≤90%4、The ambient air should not be obviously polluted by corrosivity or the flammability gas steam.Etc.5、The working situation without frequent violent. 概述Summary类别Classification全型号Full typeDS接地开关在线端Earth switch atthe wire-in endDK接地开关在线端Earth switch atthe wire-in endL联锁装置Interlock deviceR熔断器Fuse boxRA撞击式熔断器String fuse boxF电动分闸装置Off device bymotor无脱扣器Without tripperFN7-12——————FN7-12DSL△—△———FN7-12DXL—△△———FN7-12R———△——FN7-12DSLR△—△△——FN7-12DXLR—△△△——带撞击脱扣器With striking tripper椀敬栠牥 ????o〨?FN7-12RAF————△△FN7-12DSLRAF△—△—△△FN7-12DXLRAF—△△—△△ 额定参数Specified parameter额定电压(KV)Rated voltage最高电压（KV）Max.voltage额定电流（A）Rated current1min 工频耐压（KV）1min power frequency withstand voltage4S热稳定电流(有效值)(KA)4S heat-stabling current(value)动稳定电流(峰值)(KA)Machine stabling current(peak)短路关合电流(KA)Short-circuit controlling current额定开断电流（A）Rated switch-off current额定转移电流（A）Rated transfer current121240042/4812.531.531.5400100063042/482050506301000 熔断器额定参数Rated parameter of fuse box型号Rated voltage额定电压（KV）Rated current额定电流（A）Rated switch-off current熔体的额定电流（A）Fuse body rated currentSDLA*J12406.3,10,16,20,25,31.5,40SFLA*J1210050,63,71,80,100SKLA*J12125125 外形及安装图Appearance installation diagram图1、无脱扣器 "线路" 负荷开关Diagram 1.Load switch without tripper "line"图2、无脱扣器 "变压器保护" 负荷开关Diagram 2.Load switch tripper "transformer protection"外型及安装图Appearance install ation dlagram图3、脱扣器撞击负荷开关Diagram 3.Load switch with tripper striker图4、CS6操作机构安装示意图Diagram 4.Installation diagram of CS6 operating mechanismFN7(C)-12高压负荷开关FN7(C)-12 H.V.Load SwitchFN7(C)-12高压负荷开关与熔断器组合电器