【英文标准名称】:Powertransformerandreactorfittings-Part8:Butterflyvalvesforinsulatingliquidcircuits
【原文标准名称】:电力变压器和电抗器配件.第8部分:绝缘液电路用蝶形阀
【标准号】:BSEN50216-8-2005
【标准状态】:现行
【国别】:英国
【发布日期】:2006-02-21
【实施或试行日期】:2006-02-21
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:壳体;蝶形阀;扼流圈;连接器;设计;尺寸;电气工程;膨胀箱(罐);紧固件;填充口;法兰密封件;电感器;绝缘液体;可互换性;安装;油浸式变压器;使用条件;工作性能;管道;电力变压器;性能;合格试验;继电器;螺塞;螺钉;密封环;规范(验收);截止阀;测试;螺纹;变压器
【英文主题词】:Bodies;Butterflyvalves;Chokes(electric);Connectors;Design;Dimensions;Electricalengineering;Expansiontanks;Fasteners;Fillingorifices;Flangesealings;Inductors;Insulatingliquids;Interchangeable;Mounting;Oil-immersedtransformers;Operatingconditions;Performanceinservice;Pipelines;Powertransformers;Properties;Qualificationtests;Relays;Screwplugs;Screws(bolts);Sealingrings;Specification(approval);Stopvalves;Testing;Threads;Transformers
【摘要】:Thisstandardcoversthebutterflyvalvesusedonthepipelines,inwhichtheinsulatingliquidofpowertransformersorreactorsflows,inordertoallowthereplacementofcomponents,withoutremovingthewholeoralargeamountoftheinsulatingliquidfromtheconservatorandthetank.Thisstandarddefinesthegeneraloveralldimensionsandsomefunctionalandmanufacturingcharacteristicstoguaranteeinterchangeability.
【中国标准分类号】:K41
【国际标准分类号】:29_180
【页数】:22P.;A4
【正文语种】:英语
【英文标准名称】:Short-circuitcurrentsind.cauxiliaryinstallationsinpowerplantsandsubstations-Calculationofshort-circuitcurrents
【原文标准名称】:发电厂和变电所直流辅助设备短路电流.第1部分:短路电流计算
【标准号】:BSEN61660-1-1997
【标准状态】:现行
【国别】:英国
【发布日期】:1997-10-15
【实施或试行日期】:1997-10-15
【发布单位】:英国标准学会(GB-BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:电桥;三相电流;发电站;误差修正;电力传输;电路;直流电传输;电阻;公式;电容器;短路电流;电池;直流发电机;辅助的;电动机;直流电流;交流电流;电气设备;电力变换器;电力设备;数学计算
【英文主题词】:Bridgecircuits;Circuits;Definitions;Directcurrent;Directcurrentinstallations;Electricconvertors;Electricpowernetworks;Electricpowerstations;Electricalengineering;Faultcurrents;Mathematicalcalculations;Methodsofcalculation;Plant;Shortcircuitimpedance;Shortcircuits;Short-circuitcurrents;Substation;Switchgears;Symbols;Three-phase
【摘要】:ThispartofIEC61660describesamethodforcalculatingshort-circuitcurrentsind.c.auxiliarysystemsinpowerplantsandsubstations.Suchsystemscanbeequippedwiththefollowingequipment,actingasshort-circuitcurrentsources:-rectifiersinthree-phasea.c.bridgeconnectionfor50Hz;-stationarylead-acidbatteries;-smoothingcapacitors;-d.c.motorswithindependentexcitation.NOTE-Rectifiersinthree-phasea.c.bridgeconnectionfor60Hzareunderconsideration.Thedataofotherequipmentmaybegivenbythemanufacturer.Thisstandardisonlyconcernedwithrectifiersinthree-phasea.c.bridgeconnection.Itisnotconcernedwithothertypesofrectifiers.Thepurposeofthestandardistoprovideagenerallyapplicablemethodofcalculationwhichproducesresultsofsufficientaccuracyontheconservativeside.Specialmethods,adjustedtoparticularcircumstances,maybeusediftheygiveatleastthesameprecision.Short-crrcuitcurrents,resistancesandinductancesmayalsobeascertainedfromsystemtestsormeasurementsonmodelsystems.Inexistingd.c.systemsthenecessaryvaluescanbeascertainedfrommeasurementstakenattheassumedshort-circuitlocation.Theloadcurrentisnottakenintoconsiderationwhencalculatingtheshort-circuitcurrent.Itisnecessarytodistinguishbetweentwodifferentvaluesofshort-circuitcurrent:-themaximumshort-circuitcurrentwhichdeterminestheratingoftheelectricalequipment;-theminimumshort-circuitcurrentwhichcanbetakenasthebasisforfuseandprotectionratingsandsettings.
【中国标准分类号】:F20
【国际标准分类号】:17_220_01;29_240_01
【页数】:40P.;A4
【正文语种】:英语
基本信息
标准名称: | 6650聚酰亚胺薄膜聚芳酰胺纤维纸柔软复合材料产品质量分等 |
中标分类: |
电工 >>
电工材料和通用零件 >>
电工绝缘材料及其制品 |
发布日期: | |
实施日期: | 1992-07-01 |
首发日期: | |
作废日期: | |
出版日期: | |
页数: | 2页 |
适用范围
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所属分类: 电工 电工材料和通用零件 电工绝缘材料及其制品