RN1型户内高压限流熔断器，用于电力线路的过载及短路保护。所谓限流就是熔断器在短路电流达到峰值之前就将其切断的功能。□Theproductisinoverloadorshort-circuitprotectionforelctrictransformer.Thecurrentlimitingmeansthatthefusewillcutoffthecircuitbeforetheshortcircuitcurrentreachesthepeakvalue.◆熔断特性当通过熔断器的电流为其额定电流的1.3倍时，1小时不熔断；当通过熔断器的电流为其额定电流的2倍时，1小时内熔断；熔断器的熔断特性曲线如图1，供选择熔断器时参考。Currentwhichpassesthefusewhenbeing1.3timesofitsspecifiedelectriccurrent,Donotfusingforanhour;Whenthecurrentthroughthefuseis2timesofitsspecinedelectriccurrent,fusinginanhour;Refertoitsfusingfeaturecurveinchart1whenselectthefuse.◆技术数据Techniquedata361035额定电流A2010020030040020751002003002050751002007.510203040最大开断电流KA(有效值)MaxbreakingcurentKVeffectivevakue4020123.5最小开断电流(以额定电流倍数表示)ThemininumbreakingcurrentExpresswithspecifiedelectriccurrentmultipe不规定nuprovide1.3不规定nuprovide1.3不规定nuprovide1.3不规定nuprovide1.3三相最大断流容量（MVA）200重量Weight88.910.815.715.78.59.613.613.6171011.514.521211020272727◆熔断管结构Structureoffuselink熔断管是熔断器的主要部件，它是由熔丝装在瓷管中，并在瓷管中充填石英砂，两端密封而成。额定电流在7.5A以下及额定电压为35V的熔管，其熔丝是绕在特制的瓷芯上，如图2.a；额定电流在7.5A以上的熔体管，其熔丝是悬挂在瓷管中如图2.b。Thefusepipeisthemainpartoffuse,itismadebyinstallingthefusewireintheporcelainpipe,fillingthequartzsandintheporcelainpipeandsealingto-endsofpipe.Forthefusepipewithratedcurrentbelow7.5Aand35Vratedvoltage,itsfusewireisrolledonthespecialpor-celaincore,refereningtochart2.a.forthefusepipewithratedcurrentabove7.5A,itsfusewireishangintheporcelainpipe,refereningtothechart.◆外型及安装尺寸InstallationDimensios图2RN1-及RN2型熔体管剖面Chart2-thesectionofRn1andRn2stylefusepipe图3RN1-3，6，10/2-20型外形尺寸Chart2-thesectionofRn1andRn2stylefusepipe□1.端盖Cover□6.指示器熔丝Indicatorfusewire□2.端帽Cap□7.弹簧Spring□3.瓷管Porcelainpipe□8.指示器头Indicator□4.熔丝Fusewire□9.瓷制芯子Porcelaincore□5.石英砂Quartzsand□10.胶垫Rubberwasher产品型号Producttype产品型号Productcodenumber图号Diagramnumber额定电压(KV)Ratedvoltage额定电流RaFusecurrentA主要尺寸MainsizeminAaLH1HbRN1-3/2RN3图332220400450125235108RN1-3/3RN33RN1-3/5RN35RN1-3/7.5RN37.5RN1-3/10RN310RN1-3/15RN315RN1-3/20RN320RN1-6/2RN362320500550RN1-6/3RN33RN1-6/5RN35RN1-6/7.5RN37.5RN1-6/10RN310RN1-6/15RN315RN1-6/20RN320RN1-10/2RN3102420600650RN1-10/3RN33RN1-10/5RN35RN1-10/7.5RN37.5RN1-10/10RN310RN1-10/15RN315RN1-10/20RN320图6产品型号Producttype产品型号Productcodenumber图号Diagramnumber额定电压(KV)Ratedvoltage额定电流RaFusecurrentA主要尺寸MainsizeminAaLHbRN1-3/150RN3图63150270400450350108RN1-3/200RN3200RN1-6/100RN36100370500550RN1-6/150RN3150RN1-6/200RN3200RN1-10/75RN31075470600650RN1-10/100RN3100图7产品型号Producttype产品型号Productcodenumber图号Diagramnumber额定电压(KV)Ratedvoltage额定电流RaFusecurrentA主要尺寸MainsizeminAaLbRN1-3/300RN3图73300270400450108RN1-3/400RN33400RN1-6/300RN36300370500550RN1-6/150RN310150470600650RN1-6/200RN310200□RN2型户内高压限流熔断器，用于电压互感器的保护，其断流容量为1000MVA。在短路时以限制线路电流到最小值的方式进行瞬时开断，1分钟内熔断电流应在0.6-1.8A范围内。□Theproductisusedinoverloadorshort-circuitprotectionforinstrumenttransformer．Atthetimeofholdingupbyrestraincircuitcurrentwaytogetminimumfromcarryoninstantaneoustoturnonandbreak,itshouldbewithintherangeof0.6-1.8Atofusetheelectriccurrentinoneminute．◆技术数据Techniquedata产品型号ProducttypeRN2-3、6、10RN215、20RN2-35额定电压RatedvoltageKV3610152035额定电流FusecurrentA0.50.5三相断流容量Capacityoflargestbreakofthree-phaseMVA50010010001000最大开断电流(有效值)MaxbreakcurentKAeffectivevalueKA1008550403017过电压倍数OvervoltagemultipleDonotexceed不超过2.5倍工作电压Donotexceedvoltageof2.5timesofrating熔管电阻值Resistanceofthefusepipe(Ω)93±7200±10315±14重量WeightKg5.612.215.6熔管重量FuseweightKg0.91.62.5◆外型及安装尺寸InstallationDimensios图8RN2-3、6、10/0.5型外形尺寸图8RN2-15、20/0.5型外形尺寸图8RN2-35/0.5型外形尺寸RN3型系列高压限流熔断器是用于电力线路及输电设备的过载及短路保护。RN3型系列高压限流熔断器比RNL型有如下改进。1、熔体采用片状变截面多断口结构，为使开断能力增强。开断速度加快，开断后绝缘可以迅速建立。对抗过电压冲击能力得到改善。2、RN3型系列高压限流熔断器。为了使其能与FN5负荷开关配合工作。完善了指示的基本功能。3、按国家标准草案GBL5166.1-5—《限流式熔断器》中的试验方法，可开断20-150MVA的短路容量，而RN1型只能开断40～80MVA的短路容量。RN3型可配合FN5开断过载电流。开断过载电流。4、熔断器的工作温度降低，熔管的额定电流得到提高，具体参见图样。ThefuseflowsinhighvoltagelimtinRN3typeone(RN1)1．Meltiingbodyadoptslicebecomesectionfracturestructuremoreisformakeandturnonandgiveupabiltiystrengthen,openandbreakaccelerating，cansetuprapidlytobringuptherearinsulatinglwhileopenning.AssauItabilityandwasimprovedafteropposingthevoltage.2．RN3typeserialhigh-voltageIinethefuseflows．ForenabIethembeabIetocoperatewithFn5on-Icadswitchandwork．Haveperfectedthebasicfunctionofpointingout．Shouldpointfortotripintheorganiz-ationon-loadswitch．3．FromnationaIstandarddraftGBl5166．Theexperimentalmethodsof”Iimitflowinatypedevicefusebox”for1-5-94．canmakethecapacityofshortcircuitofbreaking20-150MVA．andRn1typecanonlymakethecapacityofshortcircuitofbreaking40-80MVA.Rn3typecancooperatedwithFn5andopenedandbrokentheilectriccurtentinyear.RNltype.can’ttriP4．Workinqtemperatureoffuseboxreduce，ratedcurrentofthefusehasbeeninereased，Seethepatternconcretly.图3RN3-3，6，10/2-0.5型外形尺寸图3RN3-3/75-200，RN1-6/75-200，RN3-10/75-200型外形尺寸上海智广熔断器有限公司专业生产高压熔断器,低压熔断器,高压限流熔断器,熔丝,高压熔丝高压熔断器：http:///gyrdq/ml低压熔断器：http:///dyrdq/ml)