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NF C51-112-2005 旋转电机.第2部分:旋转电机损耗和效率的试验测定方法(不包括牵引车辆用电机)

作者:标准资料网 时间:2024-05-15 12:19:35  浏览:8541   来源:标准资料网
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【英文标准名称】:Rotatingelectricalmachines-Part2:methodsfordetermininglossesandefficiencyofrotatingelectricalmachineryfromtests(excludingmachinesfortractionvehicles).
【原文标准名称】:旋转电机.第2部分:旋转电机损耗和效率的试验测定方法(不包括牵引车辆用电机)
【标准号】:NFC51-112-2005
【标准状态】:作废
【国别】:法国
【发布日期】:2005-12-01
【实施或试行日期】:2005-12-05
【发布单位】:法国标准化协会(FR-AFNOR)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:空气;测热;船舶滑行停车试验;冷却剂;冷却器;冷却;定义;测定;直流电机;直流电动机;损耗因数;可行性;效率;效率测量;电机;电动机;电气工程;电性质和电现象;热量测量;感应电机;仪器;损耗测量;损失;测量;测量桥;测量仪器;测量技术;机械背对背试验;惯性矩;多相电动机;电功率测量;规格试验;旋转;旋转电机;安全工程;规范(验收);杂散功率;同步电机;温度;试验;公差(测量);通风;水
【英文主题词】:Air;Calorimetric;Coastingstoptests;Coolants;Coolers;Cooling;Definition;Definitions;Determination;Direct-currentmachines;Direct-currentmotors;Dissipationfactor;Effectiveness;Efficiency;Efficiencymeasurement;Electricmachines;Electricmotors;Electricalengineering;Electricalpropertiesandphenomena;Heatmeasurement;Idlemode;Inductionmachines;Instruments;Lossmeasurement;Losses;Measurement;Measuringbridges;Measuringinstruments;Measuringtechniques;Mechanicalback-to-backtest;Momentofinertia;Polyphasemotors;Powermeasurement(electric);Ratingtests;Rotating;Rotatingelectricmachines;Rotatingelectricalmachinery;Safetyengineering;Specification(approval);Straypower;Synchronousmachines;Temperature;Testing;Tolerances(measurement);Ventilation;Water
【摘要】:
【中国标准分类号】:K20
【国际标准分类号】:
【页数】:51P.;A4
【正文语种】:其他


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Product Code:SAE ARP4729
Title:Document for 270 Voltage Direct Current (270 V DC) System
Issuing Committee:Ae-7c Systems
Scope: This SAE Aerospace Recommended Practice (ARP) provides technical design and application information related to the generation, distribution, control, and utilization of aircraft 270 VDC electrical power systems and support equipment. This document also provides references and definitions to permit comparisons of various electrical systems and components.【英文标准名称】:StandardTestMethodforParticleSizeDistributionofMetalPowdersandRelatedCompoundsbyLightScattering
【原文标准名称】:光散射法测定金属粉末及相关化合物的粒度分布的标准试验方法
【标准号】:ASTMB822-2010
【标准状态】:现行
【国别】:美国
【发布日期】:2010
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:B09.02
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:laserdiffraction;lightscattering;metalpowders;particlesizedistribution;powdermetallurgy;Lightscattering;Metalpowders;Miescattering;Multiplescattering;Particleanalysis--metallicmaterials;Powdermetallurgy(P/M)materials;Scattering
【摘要】:Reportedparticlesizemeasurementisafunctionofboththeactualparticledimensionandshapefactoraswellastheparticularphysicalorchemicalpropertiesbeingmeasured.Cautionisrequiredwhencomparingdatafrominstrumentsoperatingondifferentphysicalorchemicalparametersorwithdifferentparticlesizemeasurementranges.Sampleacquisition,handling,andpreparationcanalsoaffectreportedparticlesizeresults.Itisimportanttorecognizethattheresultsobtainedbythistestmethod,oranyothermethodforparticlesizedeterminationusingdifferentphysicalprinciples,maydisagree.Theresultsarestronglyinfluencedbythephysicalprinciplesemployedbyeachmethodofparticlesizeanalysis.Theresultsofanyparticlesizingmethodshouldbeusedonlyinarelativesense;theyshouldnotberegardedasabsolutewhencomparingresultsobtainedbyothermethods.Lightscatteringtheoryhasbeenavailableformanyyearsforuseinthedeterminationofparticlesize.Severalmanufacturersoftestingequipmentnowhaveunitsbasedontheseprinciples.Althougheachtypeoftestingequipmentusesthesamebasicprinciplesforlightscatteringasafunctionofparticlesize,differentassumptionspertinenttoapplicationofthetheory,anddifferentmodelsforconvertinglightmeasurementstoparticlesize,mayleadtodifferentresultsforeachinstrument.Therefore,theuseofthistestmethodcannotguaranteedirectlycomparableresultsfromdifferenttypesofinstruments.Knowledgeoftheparticlesizedistributionofmetalpowdersisusefulinpredictingthepowder-processingbehaviorandultimateperformanceofpowdermetallurgyparts.Particlesizedistributionisrelatedcloselytotheflowability,moldability,compressibility,anddie-fillingcharacteristicsofapowder,aswellastothefinalstructureandpropertiesoffinishedpowdermetallurgy(P/M)parts.Thistestmethodisusefultobothsuppliersandusersofpowdersindeterminingtheparticlesizedistributionsforproductspecifications,manufacturingcontrol,development,andresearch.Thistestmethodmaybeusedtoobtaindataforcomparisonbetweenlotsofthesamematerialorforestablishingconformance,asinacceptancetesting.1.1Thistestmethodcoversthedeterminationoftheparticlesizedistributionbylightscattering,reportedasvolumepercent,ofparticulatematerialsincludingmetalsandcompounds.1.2Thistestmethodappliestoanalyseswithbothaqueousandnonaqueousdispersions.Inaddition,analysiscanbeperformedwithagaseousdispersionformaterialsthatarehygroscopicorreactwithaliquidcarrier.1.3Thistestmethodisapplicabletothemeasurementofparticulatematerialsintherangeof0.4to2000x03BC;m,orasubsetofthatrange,asapplicabletotheparticlesizedistributionbeingmeasured.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:H16
【国际标准分类号】:
【页数】:4P.;A4
【正文语种】:英语



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