金属氧化物避雷器

R科聚金属氧化物避雷器MetalOxideSurgeArresters科大创新股份有限公司科聚分公司USTCCHUANGXINCO.LTD.,KEJUBRANCH产品说明书科大创新股份有限公司科聚分公司KEJUBRANCH,USTC.CHUANGXINCO.,LTD地址：中国安徽合肥市长江西路669号邮编：230088Add：669ChangjiangWestRoadHefeiAnhui230088P.R.China.电话(TeL):0086-551-5329599传真(Fax):0086-551-5329618E-mail：[e-mail]（MOA）无间隙氧化锌避雷器是目前国际上最先进的过电压保护器。它用于保护电气设备免受大气过电压和操作过电压的损坏，是电力系统安全运行的必备设备。本公司从1984年开始生产氧化锌压敏电阻，产品质量居国内领先，阀片残压比小，老化性能好，组装成避雷器已通过原能源部及机电部的联合鉴定。1994年进一步通过电力部的电力设备及仪表质量检验测试中心的检测，证明阀片荷电率可提高到87%，能满足原电力部安检司及新国标GB11032-2000关于提高部分避雷器额定电压和持续运行电压的要求。1998年通过ISO9001国际质量体系认证，并获得电力部成套局、水电水利规划局颁发的“入网证”，产品列入国家经贸委颁发的“全国城乡电网改造推荐设备名录”。本公司产品全部满足或优于GB11032-2000、IEC60099-4及其他相关部标。Metaloxidesurgearresterwithoutgapsisthemostadvancedover-voltageprotectorintheworld.Itisusedinprotectingelectricalequipmenttoavoiddamagefromatmosphericover-voltage&operationalover-voltage;itisindispensableequipmentinsaferunofpowersystem.Ourcompanyhasmanufacturedzincoxidevaristor(ZnO)since1984.Thequalityofourproductsisone-upinchina,itsresidualvoltageratioislittleandageingperformanceisgood.Ourarresters,whicharemadeofthevaristor,havebeenapprovedbyformerenergysourcesministryandmachinery&electricityministryofChina.In1994,ourproductspassedtheexaminesbythetestingcenterofelectricpowerequipmentandinstrumentqualityofChineseelectricpowerministryagain;thechargeratioofitwasprovedthatmayraise87%.SoourproductscansatisfytherequirementofformerelectricpowersafetyexamineministryofChina&thenewChinesenationalstandardGB11032-2000aboutpartarresters’ratedvoltage&continuousoperatingvoltagebeingboosted.OurcompanyhaspassedthecertificateofISO9001internationalqualitysystemin1998,andhasgainedtheauthorizationcertificatebythewholesetbureauofelectricpowerministryandtheprogrammingbureauofwater&electricityandwaterconservancyofChina,theproductsofourcompanywasbroughtintothedirectoryofrecommendatoryequipmentforcity&countrysideallovertheChinaelectric-networkreconstructingbythecommitteeofeconomy&tradeofChina.OurproductsallcanbesatisfiedwithorbeadvanceofGB11032-2000、IEC60099-4andothercorrelativedepartmentstandards.原理特点Principleandcharacteristic避雷器内装具有优良非线性伏安特性的氧化锌压敏电阻片（其V-A特性如图1所示），在正常工作电压下呈高阻，泄漏电流仅微安级；过电压袭来时立即转为低阻，释放能量，并限制过电压幅值；过电压消失后又立即恢复高阻，保证电力系统正常运行。由于氧化锌的这一优良特性，使避雷器动作迅速，性能稳定，结构简单，体积重量减小，维护简便，通流容量大，残压低，寿命长。Thezincoxidevaristorflakeinstalledwithinarresterhasexcellentnonlinearvolt-amperecharacteristic(itsV-Acharacteristicisshownasfig.1).Innormaloperating图1氧化锌电阻片V-A特性fig.1ZnOV-ACharacteristic10U(kV)103.0710-410-310-2-1100101102103104I(A)55467持续运行电压峰值thepeakofcontinuousoperatingvoltage-510科大创新股份有限公司科聚分公司2产品说明书voltage,itdisplayslargeresistance,itsleakingcurrentisonlymicroamperegrade.Whileover-voltageharassingattacking,ittranslateslowresistanceimmediately,releasesenergyandlimitsover-voltagerange;itresumeslargeresistanceimmediatelyafterover-voltagedisappear,andensurselectricpowersystemrunningsafely.Resultinglyzincoxidehastheexcellentcharacteristic,whichgetsarrestersactionrapid、structuresimpleness、volumeandweightdecrease、maintenancesimplenessandconvenience、currentcapabilitylarge、residualvoltagelownessandlifelasting.使用条件Conditionsofuse1.户内外均可，环境温度–40℃～+40℃2.太阳光最大辐射不超过1.1kW/m23.海拔不超过1000m(超过选用高原型)4.电源频率48Hz～62Hz5.长期施加在避雷器上的工频电压应不超过避雷器的持续运行电压6.最大风速不超过35m/s，地震烈度8度及以下7.顶端水平拉力：200kV产品≤980N，100kV产品≤490N，51kV产品≤294N，其余产品≤147N1.Indoorandoutdoormaybe,ambienttemperaturewithintherangeof-40℃to+40℃；2.Maximumsolarradiationshouldnotexceed1.1kW/m2;3.Nomorethan1000mabovesea-level(ifitexceedtheheight,pleaseselectandusetheproductssuitableforplateauarea)4.Powerfrequencywithintherangeof48Hzto62Hz;5.ThepowerfrequencyvoltagewhichcontinuouslyappliedonMOAshouldnotexceedthecontinuousoperatingvoltageofMOA;6.Maximumwindvelocityshouldnotexceed35m/s,earthquakeintensityiseightdegreeandbelow;7.HorizontalpullonthetopofMOA:200kVMOA≤980N,100kVMOA≤490N,51kVMOA≤294N,andotherMOA≤147N.使用维护Maintenanceforuse1.经常测量运行电压下的泄漏电流(全电流或其阻性分量)，应不超过规定值，并记录观察比较。2.有条件应定期测量直流1mA下参考电压，不得低于规定值。3.无间隙避雷器绝对不允许做工频放电电压试验，不得随意破坏密封打开避雷器。1.Continuouslymeasuringleakingcurrentunderoperatingvoltage(all–currentorresistancecurrent),itshouldnotexceedstatedvalue,besidesrecording、observingandcomparingthem.2.Referencevoltageunderd.c.1mAshouldbemeasuredtermlyifconditionmaybeallowed,itshouldnobelowthanstatedvalue.3.Metaloxidesurgearresterwithoutgapsisunallowedabsolutelytodothetestingofpower-frequency科大创新股份有限公司科聚分公司3产品说明书sparkovervoltage.Don’topenthearrestertodamageoptionallythesealofit.型号说明Descriptionoftypeletters产品型式TypeofProductY－瓷外套氧化锌避雷器YH－有机复合外套氧化锌避雷器Y－PorcelainHousingMetalOxideSurgeArrester(MOA)YH－PolymerHousingMOA标称放电电流（kA）NominalDischargeCurrent(kA)结构特征W－无间隙C－串联间隙StructureFeatureW－withoutgapsC－withseriesgaps使用场所Z－电站R－电容器S－配电X－线路T－电气化铁路B－阻波器D－电机ProtectedObjectiveZ－forelectricalstationR－forcapacitorS－fordistributepowersystemT－forelectricalrailwayB－forlinetrapsX－fortransmissionlineD－forelectricmachinery设计序号DesignNumber避雷器额定电压（kV）RatedVoltageofanArrester(kV)标称放电电流残压（kV）ResidualVoltageatNominalDischargeCurrent(kV)附加特