资源描述：
《电气专业毕业设计英文文献》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。
1、外文资料与中文翻译外文资料:Relayprotectionpresentsituationanddevelopment一、RelayprotectiondevelopmentpresentsituationElectricalpowersystem'sswiftdevelopmenttotherelayprotectionproposedunceasinglythenewrequest,theelectronictechnology,thecomputertechnologyandcommunication'sswiftd
2、evelopmentunceasinglyhasinfusedthenewvigorfortherelayprotectiontechnology'sdevelopment,therefore,therelayprotectiontechnologyisadvantageous,hascompletedthedevelopment4historicalstagein40remainingyearsoftime.Afterthefoundingofthenation,ourcountryrelayprotectiondisc
3、ipline,therelayprotectiondesign,therelayfactoryindustryandtherelayprotectiontechnicalteamgrowsoutofnothing,haspassedthroughthepathwhichinabout10yeartheadvaneedcountrieshalfcenturypassthrough.Inthe50s,ourcountryengineersandtechnicianscreativelyabsorption,thedigesti
4、on,havegraspedtheoverseasadvancedrelayprotectionequipmentperformanceandthemovementtechnology[1],completedonetohavethedeeprelayprotectiontheoryattainmentsandtherichserviceexperience，srelayprotectiontechnicalteam,andgrewtheinstruct!onfunctiontothenationalrelayprotec
5、tiontechnicalteam，sestablishment.TheAchengrelayfactoryintroductionhasdigestedatthattimetheoverseasadvancedrelaytechniqueofmanufacture,hasestablishedourcountryownrelaymdnufdcturingindustry.Thereforeourcountryhascompletedtherelayprotectionresearch,thedesign，themanuf
6、acture,themovementandtheteachingcompletesysteminthe60s.Thisisthemechanicalandelectrical-likerelayprotectionprosperoustime,wasourcountryrelayprotectiontechnologydevelopmenthaslaidthesolidfoundation.Fromthelate50s,thetransistorrelayprotectionwasstartingtostudy.Inthe
7、60stothe80sinisthetimewhichthetransistorrelayprotectionvigorousdevelopmentandwidelyuses.AndtheTianjinUniversityandtheNanjingElectricpowerAutomationPlantcooperationresearch's500kvtransistordirectionhighfrequencyprotectiondevelopswiththeNanjingElectricpowerAutomatio
8、nResearchinstitutethetransistorhighfrequencyblocksystemisawayfromtheprotection,movesontheGezhouDam500kv1ines[2],finishedthe500kvlineprotectiontodependup
