MIL-V-7899C
时间:2024-05-17 21:37:40 来源: 标准资料网 作者：标准资料网 阅读：9258
MIL-V-7899C, MILITARY SPECIFICATION: VALVE, CHECK, AIRCRAFT FUEL SYSTEM (30 APR 1979)., This specification covers low-pressure check valves suitable for use with hydrocarbon fuels, fuel vapors, and air.
【英文标准名称】:Environmentaltesting.Tests.TestEf.Impact,pendulumhammer
【原文标准名称】:环境试验.第2.1部分:试验.试验Ef:冲击、摆式冲击试验
【标准号】:BS2011Pt.2.1Ef-1992
【标准状态】:作废
【国别】:英国
【发布日期】:1992-01-31
【实施或试行日期】:
【发布单位】:英国标准学会(BSI)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:试验设备;试验条件;电子设备及元件;电气设备;冲击试验;电气元件;摆动件;环境试验
【英文主题词】:electronicequipmentandcomponents;electricalcomponents;electricalequipment;testingconditions;environmentaltesting;pendulums;testequipment;impacttesting
【摘要】:
【中国标准分类号】:A21
【国际标准分类号】:
【页数】:16P;A4
【正文语种】:英语
【英文标准名称】:Railwayapplications-Rollingstock-Combinedtestingofinverter-fedalternatingcurrentmotorsandtheircontrolsystem
【原文标准名称】:铁路设施.机车车辆.反向供电交流电动机及其控制系统的联合测试
【标准号】:BSEN61377-1-2006
【标准状态】:现行
【国别】:英国
【发布日期】:2006-05-31
【实施或试行日期】:2006-05-31
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:交流电动机;母线;特性曲线;检验;控制;控制系统;定义;电机;电力牵引;电气的;电气工程;电驱动装置;逆变器;机车;电动机;动力传动系统;铁轨;铁路设施;铁路工程;铁道车辆;铁路;铁路车辆;系统;试验方法;测试;牵引车辆;交通车辆;运载工具
【英文主题词】:
【摘要】:ThispartofIEC61377appliestothecombinationsofmotor(s),inverterandtheircontrolsystem,anditsobjectistospecify:??theperformancecharacteristicsofelectricdrivesconsistingofaninverter,alternatingcurrentmotors,andtherelatedcontrolsystem;??methodsofverifyingtheseperformancecharacteristicsbytests.Twocategoriesofcombinedsystemscanbeconsidered:a)alternatingcurrentmotorsfedfromaninverterwithoutanycontrolbetweenthemechanicaloutput(torque,speed)andtheinverteritself(mostlyauxiliarymotors,forexamplecoolingfanmotors).Themotorworksexactlyasifitwerefedfromabusbar(atvariablefrequencyandvoltageornot);b)alternatingcurrentmotor(s)(paralleledornot)withacontrolbetweenthemechanicaloutputandtheinverter.ThefirstcategoryofsystemsistestedaccordingtoIEC60349-2andIEC61287-1.Thisstandardappliestothesecondcategory,mainlytractiondrives.IEC60349-2appliestoconvertor-fedalternatingcurrentmotors,IEC61287-1topowerelectronicconvertors,IEC60571toelectronicequipments,andthisstandardappliestothecombinationofmotor(s),inverter,andtheircontrolsystem.Asaconsequence,IEC60349-2describestheteststodemonstratethecomplianceofthemotortoitsspecification,IEC61287-1doesthesamefortheinverter.Itisself-evidentthatsomeofthetestsmentionedinthisstandardgenerallymayreplacethecorrespondingonesdescribedintheabovementionedstandards.Anagreementshouldbereachedbetweenthepartiestoavoidtheduplicationoftests.Acompletecombinedtestisheavy,andoftenrequireshighpower,whichisnotalwaysavailableinaworkshop.Anagreementbetweenuserandmanufacturermaybereachedtoallowtestingeitherintheworkshoporonthevehicle.Testingmaybesplitoffpartiallyinaworkshopandpartiallyontrack.Atthetimeofdraftingthisstandard,onlythefollowingcombinationsofmotorsandinverterswereusedfortractionapplications,butitmayalsoapplytoothercombinationswhichmaybeusedinthefuture:??asynchronousmotorsfedbyvoltagestiff(voltagesource)inverter;??asynchronousmotorsfedbycurrentstiff(currentsource)inverter;??synchronousmotorsfedbycurrentstiff(currentsource)inverter.Theinputoftheseinverterscanbead.c.supplyline,arectifier,achopper,aninputconvertor,adieselgeneratorwithintegratedrectifiers,etc.
【中国标准分类号】:S80
【国际标准分类号】:29_160_30;45_060_01
【页数】:28P;A4
【正文语种】:英语