供应油浸式变压器保护用高压限流熔断器
本产品适用交流50Hz,额定电压10KV,在变压器中与其它保护电器(如:负荷开关等)配合使用,作为电力变压器及其它电力设备的过载或短路保护。主要用于美式箱变中作后备保护用。□TheproductcanbeusedinsystemwithAC50Hzandratedvoltageof10KV,usedtogetherwithotherprotectionelectticfaciIities(suchasloadingswitches).ItcanprotectelecttictransformersandotherelectticfaciIitlesagainstoverloadingorcircuitbreak.ItismainlyusedinAmericanstyleboxtransformersasbackupprotection.◆型号说明Typeinstruction◆基本参数Basicparameters熔断器的基本参数如表1Seechartforthefuseofbasicparameters型号Type额定电压(KV)RatedvoltageKV***高工作电压(KV)MaxworkingvoltageKV熔断器额定电流(KA)FuseratedcurrentKA熔体额定电流(A)RatedcurrentoffuselinkAOFG101212563,80,100,125200160,200◆主要技术特点Majortechnicalcharacteristics1、熔断器在规定的使用条件下,能可靠分断***小开断电流(2.5-5)ln至额定开断电流为50KA之间的任何故障电流。2、熔断器时间-电流特性如图3,***小开断电流以上部分为虚线。3,限流特性如图2。1,Thefuselinkcanbreakanyproblemcurrentbetweentheminimumbreakcurrent(2.5-5)Intoratedbreakcurrent50KA.2,Seechart3forthefusetime-currentproperty.Theuppersectionabovetheminimumbreakcurrentisbrokenline.3,Seechart2forlimncurrentproperty.◆外型及安装尺寸InstallationDimensios熔断器的外形及安装尺寸如图1所示。SeeChart1forthefuseexternalstructureandinstallationdimensi***.◆正常使用条件Conditi***fornormaluse熔断器正常使用于变压器油中,周围的温度上限不超过100℃Whenthefuselinkisinnormaluseintransformeroil,themaxenvironmettemperatureislessthan100℃图1熔断器外形及安装尺寸图Chat1Fuselinkexternalsturctureandinstallationdimensi***注:用户需要较长尺寸的熔断体件可与制造厂联系Note:oflongerfuseisneeded,Pleasecontactthefactofy.弧前时间(S)Pre-arctime(S)预期电流有效值(A)Anticipatedlimitcurrentvalidvalue图3OFG.OKG时间-电流特性曲线Chhart3OFG.OKGtime-currentproperty截断电流峰值(A)Out-offcurrent(A)预期电流有效值(A)Anticipatedlimitcurrentvalidvalue图2OFG.OKG限流特性曲线Chhart2OFG.OKGlimitcurrentproperty◆概述General□ZGR3(XRNT5)-15.5油浸式变压器短路保护用高压限流后备熔断件(以下简称熔断件)适用于交流50Hz,额定电压15.5KV,额定电流至75A的高压户内电力系统,作为电力变压器的短路保护。它与ZGR4(PRNTl3)-15.5油浸式变压器过载保护用高压熔断器串联可提供全范围保护。□ZGR3(XRNT5)-15.5H.V.current-limitingback-upfuseforshort-circuitprotectionofoil-immersedtransformer(here-underfuse)is***ailab-leailableforH.V.indoorelectricsystem,withratedvoltage15.5Kv,ratedcurrentupto175A,50Hza.c..Itisusedforprotectingfromshort-circuitforpowertransformer.Itcanofferprotectionofall-roundtogetherinserieswithZGR4(PRNTl3)-15.5H.V.fuseforoverloadrotectionofoiI-immersedtransformer.◆标准Standard符合GB15166.2交流高压熔断器限流式熔断器AccordwithGB15166.2Alternating-currenthigh-voltagefusesCurrent-limitingfuse◆订货号Ordernumber额定电流(A)RatedCurrent订货号OrderNumber31.5ZGR3-31.540ZGR3-4050ZGR3-5063ZGR3-6380ZGR3-80100ZGR3-100125ZGR3-125150ZGR3-150175ZGR3-175◆基本参数Basicparameters额定电压KV熔断器额定电流A熔体额定电流A外形尺寸额定短路开断电流A17.212531.5、40、50、6380、100、125图150175150、175图2正常工作条件:熔断件正常使用于变压器油中,周围油的温度上限不超过100℃◆型号说明Typeinstruction◆熔断器的选用ZGR3、ZGR4熔断器的选用推荐用于10KV级油浸式变压器初级端熔断器的一般选用指南变压器容量(KVA)额定电流(A)ZGR3额定电流(A)ZGR4额定电流(A)502.7531.56.31005.540101608.8631620011.080/6325A25013.78025A31517.310040A40022.012540A50027.515050A63034.617563A80044.0100双拼63A100055.0100双拼100A125068.7125双拼140A◆外型及安装尺寸InstallationDimensios熔断器的外形尺寸及安装尺寸见图1ZGR3-15.5/(31.5-125)A熔断器外形尺寸熔断器的外形尺寸及安装尺寸见图2ZGR3-15.5/(150-175)A熔断器外形尺寸◆熔断器的结构C***truction熔断器为螺栓连接结构熔断器是由熔体、熔管、帽、石英砂、骨架、密封圈等组成。熔体由纯银加工成高精度的变截面带状体。熔体有序地缠绕在骨架上放置在熔管内,管内填充满石英砂作为灭弧介质。为适应浸入变压器油中使用,在帽和熔管之间采用密封圈,并用耐油、耐高温的胶粘剂粘接,设置两道密封防线来确保可靠封口。◆熔断器的安装、使用、维护熔断器推荐水平安装□当熔断器断后,必须换上型号尺码和参数相同的新熔断器,切勿以其它器件代替,在更换熔断器时,发现熔断器的熔管发黄属于正常现象。□对三相安装的熔断器,除非已肯定仅其中一只承担过故障电流,否则即使一只熔断器动作,其它两只均应更换。□熔断器的额定电流至175A。当用户需要更大电流等级时,推荐使用双拼熔断器。同时在使用双拼时要考虑到温度相互影响因素,般要熔断器降容10%-20%使用。熔断器的时间.电流特性TheTimecurrentCharacteristicOfTheFuse时间-电流特性曲线ZGR3后备熔断器熔断器的时间-电流特性TheTimecurrentCharacteristicOfTheFuse熔断器额定电流为150A、175A的时间-电流特性曲线◆型号说明Typeinstruction◆熔断器的性能Performance熔断器不允许单独使用,必须与后备熔断器串联组成全范围熔断器。在组合上应充分考虑熔断器和后备熔断器的保护特性。图1为熔断器和后备熔断器的时间-电流特性曲线。图中A点为两曲线的交点。B点为后备熔断器的额定***小开断电流。C点为熔断器额定***大开断电流。当熔断器与后备熔断件组合使用时,首先A点必须存在,其次B点位于A点之上,C点位于A点之下。Fusecan’tbeusedaIone.Itmustbeusedinserieswiththeback-upfusetobecomeprotectionofalI-around.Inusing,thecharacteristicofthefuseandtheback-upfusemustbec***ideredenough.Figurethetime-currentcharacteristicofthefuseandtheback-upfuse.Ainfigureisapointofthemeetingtwocurves.Bismin.breakinacapacitycurrentoftheback-upfuse-IinkCisratedmax.breakingcapacitycurrentofthefuse.WhenfusewiIIbeusedinserieswiththeback-upfuse-Iink,firstthepointAmustbeexistence,secondthepointBisabovethepointAandthepointCisbelowthepointA.◆订货号Ordernumber◆图熔断与后备熔断器保护特性配合图额定电流ARatedcurrent熔断件订货路号Fuse-linkOrdernumberSTR4底座订货号Fuse-baseOrdernumber6.3STR4-6.3STR4-D10STR4-1016STR4-1625STR4-2540STR4-4050STR4-5063STR4-63100STR4-100140STR4-140◆概述GeneralZGR4(PRNTl3)-15.5油浸式变压器过载保护用高压熔断器(以下简称熔断器)适用于交流50Hz,额定电压15.5KV,额定电流至140A的高压户内电力系统,它必须与ZGR3(XRNT5)-15.5油浸式变压器短路保护后备熔断器(以下简称后备熔断器)串联才能组成作为电力变压器的过载和短路保护,即提供全范围保护。熔断器在全范围保护作用中仅用来保护变压器二次侧短路故障及小范围的故障电流。.ZGR4(PRNTl3)-15.5H.V_FuseForOverlcadProtectionOfOiI-immersedTransformer(here-underfuse)is***allableforH.V.indoorelectricsystem,withratedvoltage15.5KV,ratedcurrentupto140A,50Hza.c..Itisusedforprotectingfromoverlcadandshort-circuitforpowercanofferprotectionofall-roundtogetherinserieswithZGR3(XRNT5)-15.5H.V.current-limitingback-upfuseforshort-circuitprotectionofoll-immersedtransformer(here-underback-upfuse).Intheprotectionofall-roundfuseisonlyusedprotectiontoshort-ircuitmalfunctionofthesecondarysideoftransformerandmalfunctioncurrentofthe***allarea.◆标准Standard符合GB15166.3交流高压熔断器喷射式熔断器AccordwithGB15166.3Alternating-currenthigh-voltagefusesExpulsionfuse◆熔断器的结构C***truction熔断器为插杆式结构。它由熔断件、底座、手柄组成,熔断件帽的一端为喇叭形,另一端为漏斗形。熔断件插入手柄中的螺丝管内,喇叭形帽端与手柄的握柄部分通过螺纹可靠接触。漏斗形帽通过展平帽的上端与螺丝管接触良好,用末端螺栓加以固定。手柄插入底座,转动手柄的锁扣,锁住熔断器。C***tructionoffuseisinsertion.Thefusec***istofafuse-linkafuse-baseandafuse-carrier.Fuse’splugsarecontactflareandtuliptip.◆基本参数Basicparameters额定电压(KV)Ratedvoltage15.5***高电压(KV)MAX.voltage17.2熔断器额定电流(A)Ratedcurrentofthefuse-link140熔体额定电流ARatedcurrentofthefuse-element6.3、10、16、2540、50、63、100、140使用环境Operatingcondition变压器油中inthetransformeroil额定***大开断电流KARatedshort-circuitbreakingcapacitycurrent2.5熔断器的外形尺寸和安装尺寸图3熔断器的外形尺寸图2熔断器的外形尺寸及安装尺寸Dimensi***oftheOverallandInstallation◆熔断器的安装Wedge步骤:1、打开手柄上的锁扣,从底座中拔出手柄;2、用板手旋松手柄中螺丝管和末端螺栓;3、松开螺丝管和末端螺栓;4、把熔断件插入螺丝管内;5、熔断件的喇叭形帽必须装在螺丝管和握柄之间;6、用扳手固定握柄,扭矩约5.6—7.9N.m。7、展开熔断件漏斗形帽。8、用一个扳手卡住螺丝管端部螺栓,用另一个扳手旋紧末端螺栓,扭矩约5.6—7.9N.m。9、把手柄插入底座,转动手柄的锁扣,锁住熔断器。SlEP:1、Unlockfuseholderlatchhandle,drawthefuseholderoutfromthebase.2、Useawrenchtoremovefusecartridgefromfusecartridgeandendplug.3、Removefusecartridgeandendplug.4、lnsertfuselinkintofusecar-tridge.5、Fuse-link’strumpertipmustbefixedbetweenfusecartridgeandfusecartridgeholder.6、Useawrenchtotightenfusecartridgeholderusing5.6-7.9N.moftorque.7、Spreadtuliptip.8、Useawrenchtostraightenedgeplugandtheothertightenendplugusing5.6-7.9N.moftorque9、lnserthandleintothebase,rotatefuseholderlatchhandle:andlockthefuse.◆注意事项Notice1、熔断器手柄插入底座应用力插到位,压紧并旋转锁扣使手柄在锁住位置时确保不锈钢垫圈在熔断器管的肩节处,手柄闭锁在肩节处,以保证箱变全密封,不进潮气。2、当熔断器装在油箱内,油箱内的油面应在图3所示的范围内。3、当溶断器动作后需要更换熔断件,打开手柄上的锁扣,转动手柄90°,以消除密封垫圈和外管间的粘附作用,拔出手柄。4、当熔断件熔断后,必须换上型号和规格等参数相同的新熔断件,切勿以其它器件代替。5、对三相安装的熔断器,除非已肯定仅其中一只承担过故障电流,否则即使一只熔断器动作,其它两只均应更换。6、熔断器的开断会引起油的变质、污染和炭化。1.Aslightresistancemayoccurwheninsertingfuse-linkintocartridge.Whenthefusecartridgeholderislocked.thesteel’spackingring.istheshoulderofthefusecartridge.Sothebincanbeensuredtosealedandnotbeintowetair.2.Whenthefuseisintotheoilbin.theoillevelintheoilbinisasshowninFigure3.3.Whenreplacingfuse-link,unlockfuseholder,turnfuseholder90inthehousingtobreakthesealbetweenthesealpackingringandhousing,drawthefuseholderout.4.Ifdamaged,thetypeandmaintechnicaldataofthenewfuse-linkmustbesamecompletely,nottoreplacebytheother.5.Thefuseinthreephase,oneoffusesisdamaged,theotherwillbereplaced,unlessoneofthemhasbeenknowntobebreakingOperation.6.Breakingoffusewillbecausethemetamorphosisofoil.pollutionandcarburetion.熔断器的时间-电流特性TheTimecurrentCharacteristicOfTheFuse时间-电流特性曲线上海智广熔断器有限公司***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)
上海智广熔断器有限公司
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