Vimbela i-short circuit yesigaba kuya kwesigaba ebangelwa yiziphetho ezixegayo ze-stator windings
Ukugoqa kwe-stator kufanele kuboshwe endaweni yokubeka, futhi ukuhlolwa kwamandla okufaka kufanele kuhlangabezane nezidingo.
Hlola njalo ukuthi iziphetho zokugoqa ze-stator ziyacwila, zikhululekile noma zigugile.
Vimbela umonakalo wokufakwa kwe-stator winding
Qinisa ukuhlolwa kwezintambo zendandatho kanye nokufakwa kwe-transition lead kwamajeneretha amakhulu, futhi wenze njalo izivivinyo ngokuhambisana nezidingo "zeMithetho Yokuhlola Ukuvikelwa Kwemishini Kagesi" (DL/T 596-1996).
Hlola njalo ukuqina kwesikulufu se-stator core sejeneretha. Uma ukuqina kwesikulufu se-core kutholakala kungahambisani nenani lomklamo wefektri, kufanele kuxazululwe ngesikhathi. Hlola njalo ukuthi amashidi ensimbi e-silicon ejeneretha abekwe kahle, akukho mkhondo wokushisa ngokweqile, futhi umsele we-dovetail awunamachaphaza nokuqhekeka. Uma ishidi lensimbi le-silicon liphuma, kufanele lixazululwe ngesikhathi.
Vimbela ukujikeleza okufushane phakathi kokujika kokugoqa kwe-rotor.
Ukuhlolwa kwe-dynamic kanye ne-static inter-turn short-circuit kufanele kwenziwe ngokulandelana kweyunithi yokushefa ephezulu ngesikhathi sokulungiswa, futhi idivayisi yokuqapha ye-inthanethi ye-rotor winding dynamic inter-turn short-circuit ingafakwa uma izimo zivuma, ukuze kutholakale ukuphazamiseka ngokushesha okukhulu.
Qaphela ukudlidliza kanye noshintsho lwamandla okusabela kwamajeneretha asebenzayo nganoma yisiphi isikhathi. Uma ukudlidliza kuhambisana noshintsho lwamandla okusabela, i-rotor yejeneretha ingaba ne-inter-turn short circuit enzima. Ngalesi sikhathi, ugesi we-rotor uqala ngokulawulwa. Uma ukudlidliza kukhula ngokuzumayo, ijeneretha kufanele imiswe ngokushesha.
Ukuvimbela umonakalo wokushisa ngokweqile endaweni kujeneretha
Indawo yokukhipha ijeneretha kanye nengxenye yokuxhumanisa ye-neutral point lead kufanele kube okuthembekile. Ngesikhathi sokusebenza kweyunithi, ukulinganisa izinga lokushisa kwesithombe se-infrared kufanele kwenziwe njalo ngekhebula lesigaba esihlukanisiwe kusukela ekuvuseleleni kuya kudivayisi yokuvuselela engaguquki, ikhebula kusukela kudivayisi yokuvuselela engaguquki kuya endandatho yokushintsha ye-rotor, kanye nendandatho yokushintsha ye-rotor.
Hlola njalo ukuthintana phakathi kokuthintana okuguquguqukayo nokungaguquki kwebhuleki lommese webhuleki likagesi, bese uthola ukuthi isipilingi sokucindezela sikhululekile noma umunwe owodwa wokuthintana awuhambisani neminye iminwe yokuthintana futhi ezinye izinkinga kufanele zixazululwe ngesikhathi.
Uma ukufakelwa kwejeneretha kushisa kakhulu i-alamu, isizathu kufanele sihlaziywe, futhi uma kudingeka, umshini kufanele uvalwe ukuze kususwe iphutha.
Uma umshini omusha ufakwa ekukhiqizweni futhi umshini omdala ulungiswa, kufanele kuqashelwe ukuhlola ukucindezelwa kwe-stator iron core nokuthi umunwe wokucindezela kwamazinyo uchemile yini, ikakhulukazi amazinyo kuzo zombili izinhlangothi. Ukuhlolwa kokulahlekelwa yinsimbi kufanele kwenziwe lapho kudluliselwa noma uma kunokungabaza mayelana nokufakwa kwe-core insulation.
Enkambisweni yokukhiqiza, yokuthutha, yokufaka kanye nokulungisa, kufanele kuqashelwe ukuvimbela izinto ezincane zangaphandle njenge-welding slag noma ama-metal chips ukuthi angaweli ezindaweni zokungenisa umoya ze-stator core.
Vimbela umonakalo wemishini wejeneretha
Uma usebenza emhubheni womoya wejeneretha, umuntu okhethekile kumele abekwe ukuqapha umnyango wejeneretha. Umqhubi kumele agqoke izingubo zokusebenza ezingenansimbi nezicathulo zokusebenza. Ngaphambi kokungena kujeneretha, zonke izinto ezingavunyelwe kufanele zikhishwe, futhi izinto ezilethwayo kufanele zibalwe futhi zirekhodwe. Lapho umsebenzi usuqediwe futhi ukhishwa, uhlu lwezinto ezigciniwe lulungile ukuqinisekisa ukuthi azikho izinsalela. Iphuzu elibalulekile ukuvimbela imfucuza yensimbi efana nezikulufo, amantongomane, amathuluzi, njll. ukuthi ingashiywa ngaphakathi kwe-stator. Ikakhulukazi, kufanele kwenziwe ukuhlolwa okuningiliziwe esikhaleni esiphakathi kwama-coil okugcina kanye nendawo ephakathi kwama-involutes aphezulu naphansi.
Amadivayisi okuvikela imishini eyinhloko kanye neyokusiza kufanele ahlolwe njalo futhi afakwe ekusebenzeni okuvamile. Uma amamitha okuqapha ukusebenza abalulekile kanye namadivayisi eyunithi ehluleka noma esebenza ngendlela engafanele, akuvunyelwe nhlobo ukuqala iyunithi. Uma iyunithi ingalawuleki ngesikhathi sokusebenza, kumele imiswe.
Qinisa ukulungiswa kwemodi yokusebenza kweyunithi, bese uzama ukugwema indawo yokudlidliza okuphezulu noma indawo yokuvula i-cavitation yokusebenza kweyunithi.
Vimbela i-generator bearing ukuthi ingashi amathayili
I-thrust bearing enedivayisi yokujaha uwoyela enomfutho ophezulu kufanele iqinisekise ukuthi uma kwenzeka idivayisi yokujaha uwoyela enomfutho ophezulu yehluleka, i-thrust bearing ayifakwa kudivayisi yokujaha uwoyela enomfutho ophezulu ukuze ime ngokuphepha ngaphandle komonakalo. Idivayisi yokujaha uwoyela enomfutho ophezulu kufanele ihlolwe njalo ukuqinisekisa ukuthi isesimweni esijwayelekile sokusebenza.
Izinga likawoyela likawoyela wokugcoba kufanele libe nomsebenzi wokuqapha okuzenzakalelayo okude futhi lihlolwe njalo. Uwoyela wokugcoba kufanele uhlolwe njalo, futhi ukuwohloka kwekhwalithi kawoyela kufanele kuxazululwe ngokushesha okukhulu, futhi iyunithi akufanele iqalwe uma ikhwalithi kawoyela ingafaneleki.
Izinga lokushisa lamanzi apholile, izinga lokushisa likawoyela, amadivayisi okuqapha nokuvikela amazinga okushisa amathayili kufanele abe anembile futhi athembekile, futhi ukunemba kokusebenza kufanele kuqiniswe.
Uma izimo zokusebenza ezingavamile zeyunithi zingalimaza ibhereyi, kumele kuhlolwe ngokuphelele ukuqinisekisa ukuthi isihlahla sebhereyi sisesimweni esihle ngaphambi kokuqala kabusha.
Hlola njalo i-bearing pad ukuqinisekisa ukuthi azikho iziphambeko ezifana nokuqhekeka kanye nokuqhekeka, kanye nokuphela kobuso bomphezulu wokuxhumana we-bearing pad, ikhola yomgodi kanye nepuleti lesibuko kufanele kuhlangabezane nezidingo zomklamo. Kuma-bearing pad e-Babbitt, ukuxhumana phakathi kwe-alloy ne-pad kufanele kuhlolwe njalo, futhi ukuhlolwa okungonakalisi kufanele kwenziwe uma kudingeka.
Isekethe yokuvikela umgodi wokuthwala kufanele isetshenziswe ngendlela evamile, futhi i-alamu yamanje yomgodi kumele ihlolwe futhi iphathwe ngesikhathi, futhi iyunithi ayivunyelwe ukusebenza ngaphandle kokuvikelwa komgodi isikhathi eside.
Vimbela ukukhululeka kwezingxenye ze-hydro-generator
Izingxenye ezixhumanisayo zezingxenye ezijikelezayo kufanele zivinjelwe ekukhululekeni futhi kufanele zihlolwe njalo. Ifeni elijikelezayo kufanele lifakwe ngokuqinile, futhi ama-blade kufanele angabi nama-cracks kanye nokuguquka. Ipuleti elibangela umoya kufanele lifakwe ngokuqinile futhi ligcine ibanga elanele ukusuka kubha ye-stator.
I-Stator (kufaka phakathi uhlaka), izingxenye ze-rotor, i-stator bar slot wedge, njll. kufanele ihlolwe njalo. Ama-fixing bolts, ama-stator foundation bolts, ama-stator core bolts kanye nama-tension bolts ohlaka lwe-turbine generator kufanele aboshwe kahle. Akufanele kube nokuxega, ukuqhekeka, ukuguquka kanye nezinye izimo.
Emhubheni womoya we-hydro-generator, kubalulekile ukugwema ukusebenzisa izinto ezivame ukushisa ngaphansi kwensimu ye-electromagnetic noma izinto zokuxhuma zensimbi ezingamuncwa ngogesi. Ngaphandle kwalokho, kufanele kuthathwe izinyathelo zokuzivikela ezinokwethenjelwa, futhi amandla kufanele ahlangabezane nezidingo zokusetshenziswa.
Hlola njalo uhlelo lokubhuleka olusebenzisa imishini ye-hydro-generator. Amabhuleki namasongo okubhuleka kufanele abe yisicaba ngaphandle kwemifantu, amabhawodi okulungisa akufanele akhululeke, izicathulo zokubhuleka kufanele zishintshwe ngesikhathi ngemva kokuba sezigugile, futhi amabhuleki nezinhlelo zawo zokuhambisa umoya kanye namafutha kufanele zingabi nama-hairpin. , umgodi wentambo, ukuvuza komoya kanye nokuvuza kwamafutha kanye nezinye izinkinga ezithinta ukusebenza kokubhuleka. Inani lokusetha isivinini sesekethe yokubhuleka kufanele lihlolwe njalo, futhi akuvunyelwe ngokuphelele ukusebenzisa ibhuleki elisebenzisa imishini ngesivinini esikhulu.
Hlola njalo idivayisi yokuvumelanisa ukuze uvimbele i-hydro-generator ukuthi ixhunywe kugridi ngendlela engahambisani.
Ukuvikelwa emaphutheni omhlaba ajikelezayo e-generator rotor
Uma ukugoqa kwe-rotor yejeneretha kusekelwe endaweni ethile, indawo yephutha kanye nohlobo kufanele kutholakale ngokushesha. Uma kuyisisekelo sensimbi esizinzile, kufanele simiswe ngokushesha.
Vimbela amajeneretha ukuthi angaxhunywa kugridi ngendlela engavumelani
Idivayisi yokuvumelanisa okuzenzakalelayo yekhompyutha kufanele ifakwe ngokuhlolwa kokuvumelanisa okuzimele.
Kumayunithi asanda kufakwa ekukhiqizweni, amasekethe alungisiwe futhi avumelanisiwe (kufaka phakathi isekethe ye-voltage AC, isekethe ye-DC yokulawula, imitha yesinyathelo esigcwele, idivayisi yokuvumelanisa ezenzakalelayo kanye nesibambo sokuvumelanisa, njll.) esishintshiwe noma imishini yaso ishintshiwe, umsebenzi olandelayo kumele wenziwe ngaphambi kokuxhuma kugridi okokuqala: 1) Yenza ukuhlolwa okuphelele nokuningiliziwe kanye nokudluliselwa kwedivayisi kanye nesekethe yokuvumelanisa; 2) Sebenzisa isethi ye-generator-transformer enokuhlolwa kokukhulisa i-busbar okungenamthwalo ukuze uhlole ukunemba kwesekethe yesibili ye-voltage yokuvumelanisa, bese uhlola ithebula lesinyathelo lonke. 3) Yenza ukuhlolwa kokuvumelanisa okungamanga kweyunithi, futhi ukuhlolwa kufanele kufake phakathi ukuhlolwa kokuvumelanisa kwe-quasi ngesandla kanye nokuhlolwa kokuvala kokuvumelanisa kwe-quasi okuzenzakalelayo kwe-circuit breaker, ukuvimba kokuvumelanisa njalo njalo.
Vimbela umonakalo wejeneretha obangelwa ukwehluleka kwesistimu yokuvuselela
Sebenzisa ngokuqinile umkhawulo ophansi wokuvusa wesikhungo sokuhambisa kanye nezidingo zokusetha i-PSS zamajeneretha, futhi uziqinisekise ngesikhathi sokulungisa.
Umkhawulo wokuvusa ngokweqile kanye nezilungiselelo zokuvikela ukuvusa ngokweqile komlawuli wokuvusa okuzenzakalelayo kufanele kube ngaphakathi kwamanani avunyelwe anikezwe umenzi, futhi kufanele kuhlolwe njalo.
Uma isiteshi esizenzakalelayo somlawuli wokuvuselela sihluleka, isiteshi kufanele sishintshwe futhi sisebenze ngesikhathi. Akuvunyelwe nhlobo ukuthi ijenereyitha isebenze isikhathi eside ngaphansi komthethonqubo wokuvuselela ngesandla. Ngesikhathi sokusebenza komthethonqubo wokuvuselela ngesandla, lapho kulungiswa umthwalo osebenzayo wejenereyitha, umthwalo osabelayo wejenereyitha kumele ulungiswe kahle ukuze kuvinjelwe ijenereyitha ukuthi ingalahlekelwa ukuzinza kwayo okungaguquki.
Uma ukuphambuka kwe-voltage yokunikezwa kwamandla kungu-+10%~-15% kanti ukuphambuka kwemvamisa kungu-+4%~-6%, uhlelo lokulawula ukuvusa, amaswishi nezinye izinhlelo zokusebenza zingasebenza ngokujwayelekile.
Enkambisweni yokuqala, yokumisa kanye nezinye izivivinyo zeyunithi, kufanele kuthathwe izinyathelo zokunquma ukuvusa ijeneretha ngesivinini esiphansi seyunithi.
Isikhathi sokuthunyelwe: Mashi-01-2022
