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1、郑州工业应用技术学院学生课程考核专业夕卜文翻译原文：Generators,motorsandpowertransmission译文：发电机、电动机和电能输送学院:专业:班级:课程:学生姓毛:学号:时间：成绩评定:机电工程学院电气工程及其自动化电气工程专业英语舒亚飞11021201022014-12-11电气工程及其自动化（1）班Generators,motorsandpowertransmissionAbstract:Therearetwokindsofgenerators,isakindofalternator,isadeg
2、enerato匚Changethedirectionofthecurrentinthearmatureorexcitationcoilandelectricopportunitytoreverse.Acmotoriscommontypehasthreeelectromagnet,connectedtoeachofthethree-phaseacpowersupply.Synchronousmotorandacmotorspeedisproportionaltotheundersteadystate,canbedividedin
3、tocylindricalrotorandsalientpolemotor.Earlyelectricitytransmissionistouseofdeoracpower,controversial.Withthecontinuousdevelopmentofsocietyandprogress,thedemandforelectricityisbecomingmoreandmorebig,duetothealternatingcuiTentofthedanger,biggerproblems.Butinordertored
4、ucethepowerlossintransmissionline,onlytoimprovethevoltage,thenewenergywillbeusedmoreconvenienttransport.Keywords:motor,therotor,highpressure,delivery,alternatingcurrent1，generatorsandmotorsAnalternating-currentgeneratorisarotatingmachineforconvertingmechanicalenergy
5、intoaltemating-cuirentelectricpowe匸Asinthecaseofadegenerator,therotatingpartofthemachineisdrivenbyasourceofrotatingpowerexternaltothemachineitself.Alternating-cuiTentgenerators,alsocalled“alternators：canbedividedintothreetypesaccordingtothetypeofdriveorprimemover.Th
6、erearedirect-connectedengine-driven(steamorinternalcombustion)acgenerators,water-wheelacgenerators,turbine-drivenacgenerators.DCGeneratorsAdirect-cuiTentgeneratorisarotatingmachineforconvertingmechanicalenergyintodirect-cuiTentelectricpower.Adegeneratorisdrivenbymec
7、hanicalmeans,suchasasteamengine,dieselengineorelectricmoto匚Direct-currentgeneratorsareratedinkilowatts,sizesrangfromafractionofawatttoseveralthousandwatts.Anelectricmotorcanbereservedbyreservingthedirectionofthecurrentineitheritsarmatureoritsfieldcoils.Ifbothcurrent
8、sarereservedthemotorcontinuestoturninthesamedirection,anditfollowsthatthecommutatormotorsdescribedabovewillworkfromanACsupply.Thereare,how
