I-Dry-type transformer ibhekiselele kwisiguquli samandla esingundoqo kunye ne-winding engatshoniswanga kwi-oyile yokukhusela kwaye yamkele ukupholisa kwendalo okanye ukupholisa umoya. Njengesixhobo sokuhanjiswa kwamandla kade, sele isetyenziswa ngokubanzi kwiinkqubo zokuhambisa amandla kunye nenguqu kwiindibano zocweyo zasefektri, izakhiwo eziphakamileyo, amaziko orhwebo, izikhululo zeenqwelo moya, iidocks, iindlela eziphantsi komhlaba, amaqonga e-oyile kunye nezinye iindawo, kwaye zinokudityaniswa nokutshintsha. iikhabhathi zokwenza isitishi esincinci esipheleleyo.
Okwangoku, uninzi lweziguquli zamandla ezomileyo zinezigaba ezintathu eziqinileyo ezibunjiweyo ze-SC series, ezinje: SCB9 series izigaba ezithathu zokujija iziguquli, i-SCB10 series i-foil transformers yesigaba sesithathu, i-SCB9 series i-foil transformers yesigaba sesithathu. Inqanaba layo lombane liqhelekileyo kuluhlu lwe-6-35KV, kwaye umthamo omkhulu unokufikelela kwi-25MVA.
■ Iintlobo zezakhiwo zee-transformer zodidi olumileyo
1. Vula uhlobo: Yifomu esetyenziswa ngokuqhelekileyo. Umzimba wayo udibana ngqo nomoya ojikeleze umhlaba. Ifanelekile kwiindawo ezinomileyo nezicocekileyo zangaphakathi (xa iqondo lokushisa eliphantsi lingama-degrees angama-20, umswakama ohambelanayo akufanele udlule kwi-85%). Zimbini iindlela zokuzipholisa ngokubanzi: ukuzipholisa emoyeni kunye nokuzipholisa emoyeni.
2. Uhlobo oluvaliweyo: Umzimba ukwiqokobhe elivaliweyo kwaye awudibananga ngokuthe ngqo nomoya ojikeleze umhlaba (ngenxa yokungavali kakuhle kunye neemeko zokutshatyalaliswa kobushushu, ubukhulu becala busetyenziswa emigodini kwaye akunakuqhuma).
3. Uhlobo lokuphosa: Ukuphosa nge-epoxy resin okanye ezinye ii-resin njenge-insulation engundoqo, inesakhiwo esilula kunye nobukhulu obuncinci, kwaye ifanelekile kubaguquli abanomthamo omncinci.
■ Iindlela zokupholisa zodidi olulomileyo lweziguquli
Iindlela zokupholisa zohlobo olumileyo lwe-transformers zihlukaniswe zibe yindalo yokupholisa umoya (AN) kunye nokupholisa umoya okunyanzelekileyo (AF). Xa ipholile ngokwemvelo, i-transformer inokusebenza ngokuqhubekayo ixesha elide kumthamo olinganisiweyo. Xa kusetyenziswa ukupholisa umoya okunyanzelekileyo, umthamo wokukhupha i-transformer unokunyuswa ngama-50%. Ilungele ukusebenza okugqithisiweyo okwethutyana okanye ukusebenza ngokungxamisekileyo komthwalo ogqithisileyo; ngenxa yokunyuka okukhulu kwelahleko yomthwalo kunye ne-impedance voltage ngexesha lokulayisha ngaphezulu, ikwimeko yokusebenza engeyiyo yezoqoqosho, ngoko akufanele ivunyelwe ukuba isebenze ngokuqhubekayo ixesha elide.
■ Iindidi zeziguquli zodidi olumileyo
1. I-air-insulated dry-type transformers ezifakwe ngaphakathi: Okwangoku, azifane zisetyenziswe. Ukugquma i-conductor kunye ne-insulation structure materials zikhethwa kwizinto zokufakelwa kwamanqanaba ahlukeneyo amelana nobushushu ngokweemfuno zokwenza iKlasi B, iKlasi F kunye neKlasi H yokugquma i-dry-type transformers.
2. I-epoxy resin iphosa i-dry-type transformers: Izinto zokugquma ezisetyenzisiweyo yi-polyester resin kunye ne-epoxy resin. Okwangoku, iziguquli zamandla zohlobo ezomileyo zisetyenziselwa ikakhulu i-epoxy resin.
3. I-insulation esongiweyo eyomileyo yohlobo lwe-transformers: I-insulation esongiweyo yohlobo lwe-transformer eyomileyo nayo iluhlobo lwe-resin insulation. Okwangoku, bambalwa abavelisi.
4. Isiguquli esidityanisiweyo sokugquma isiguquli sohlobo olomileyo:
(1) I-high-voltage windings isebenzisa i-cast cast, kwaye i-low-voltage windings isebenzisa i-insulation impregnated;
(2) Amandla ombane aphezulu asebenzisa ukugquma okuphoswayo, kwaye amandla ombane aphantsi asebenzisa ifoil windings inxeba elinefoil yobhedu okanye ifoyile yealuminiyam.
■ Zeziphi iingenelo zeziguquli zodidi olomileyo xa kuthelekiswa ne-oyile entywiliselweyo?
1. Iinguqu zamandla ezomileyo zinokuphepha ingozi yomlilo kunye nokuqhuma kweoli ye-transformer ngenxa yokungaphumeleli ngexesha lokusebenza. Ekubeni izinto zokufakelwa kwezinto eziguquguqukayo zohlobo olumileyo zizo zonke izinto ezinomlilo, nokuba i-transformer ihluleka ngexesha lokusebenza kwaye ibangela umlilo okanye kukho umthombo womlilo wangaphandle, umlilo awuyi kwandiswa.
2. Iinguqu zamandla ezomileyo aziyi kuba neengxaki zokuvuza kweoli njenge-oyile-immersed transformers, kwaye akuyi kubakho iingxaki ezifana nokuguga kweoli ye-transformer. Ngokuqhelekileyo, ukusebenza, ukugcinwa kunye nokulungiswa komsebenzi wokutshintsha kombane omileyo kuncitshiswe kakhulu, kunye nokungagcini.
3. Iinguqu zamandla ezomileyo zidla ngokuba zizixhobo zangaphakathi, kwaye zingenziwa ngaphandle kwiindawo ezineemfuno ezizodwa. Inokufakwa kwigumbi elinye kunye nekhabhinethi yokutshintsha ukunciphisa indawo yokufakela.
4. Ekubeni abaguquli bamandla obomi obomileyo abanayo ioli, banezixhobo ezimbalwa, akukho zikhabhinethi zokugcina ioli, i-airways yokhuseleko, inani elikhulu leevalve kunye nezinye izinto, kwaye akukho ngxaki yokutywinwa.
■ Ufakelo kunye nogunyaziso lweziguquli zodidi olomileyo
1. Ukuhlola ukupakisha phambi kofakelo
Jonga ukuba isingxobo sichanekile na. Emva kokukhupha i-transformer, khangela ukuba idatha ye-nameplate ye-transformer ihlangabezana neemfuno zokuyila, ingaba amaxwebhu efektri agqityiweyo, ingaba i-transformer ilungile, ingaba kukho izibonakaliso zomonakalo wangaphandle, nokuba ngaba iindawo zichithwa kwaye zonakaliswe, ingaba inkxaso yombane okanye iingcingo zokudibanisa zonakaliswe, kwaye ekugqibeleni ukhangele ukuba ngaba iindawo ezizimeleyo zonakaliswe kwaye zifutshane.
2. Ukufakwa kweTransformer
Okokuqala, khangela isiseko se-transformer ukujonga ukuba i-plate yensimbi edibeneyo ikwinqanaba. Akufanele kubekho imingxuma phantsi kweplate yensimbi yokuqinisekisa ukuba isiseko se-transformer sinokuchasana kakuhle kwe-seismic kunye nokusebenza kwesandi sokufunxa isandi, ngaphandle koko ingxolo ye-transformer efakiweyo iya kwanda. Emva koko, sebenzisa i-roller ukuhambisa i-transformer kwindawo yokufakela, susa i-roller, kwaye ulungise ngokuchanekileyo i-transformer kwindawo eyilelwe. Impazamo yenqanaba lofakelo ihlangabezana neemfuno zoyilo. Ekugqibeleni, weld iintsimbi ezine ezimfutshane zetshaneli kwipleyiti yentsimbi edibeneyo, kufuphi neekona ezine zesiseko se-transformer, ukuze i-transformer ingahambi ngexesha lokusetyenziswa.
3. Iingcingo zeTransformer
Xa i-wiring, umgama omncinci phakathi kweendawo eziphilayo kunye neendawo eziphilayo emhlabeni kufuneka uqinisekiswe, ngokukodwa umgama ukusuka kwikhebula ukuya kwi-coil high-voltage. I-high-current low-voltage busbar kufuneka ixhaswe ngokwahlukileyo kwaye ayikwazi ukunyanzeliswa ngokuthe ngqo kwi-terminal ye-transformer, eya kuvelisa ukuxinzezeleka okugqithisileyo komatshini kunye ne-torque. Xa i-current ingaphezu kwe-1000A (efana ne-2000A low-voltage busbar esetyenziswa kule projekthi), kufuneka kubekho uxhulumaniso oluguquguqukayo phakathi kwe-busbar kunye ne-terminal ye-transformer ukuhlawulela ukwandiswa kwe-thermal kunye nokunciphisa umqhubi kunye nokuhlukanisa ukungcangcazela. yebhasi kunye ne-transformer. Uqhagamshelo lombane kwindawo nganye yoqhagamshelo kufuneka lugcine uxinzelelo oluyimfuneko, kunye nezinto ezilastiki (ezifana nezangqa zeplastiki ezimilise okwediskhi okanye iiwasha zasentwasahlobo) kufuneka zisetyenziswe. Xa uqinisa iibholiti zokudibanisa, i-torque wrench kufuneka isetyenziswe.
4. Isiseko seTransformer
Indawo yokumisa i-transformer iphantsi kwesiseko se-low-voltage side, kwaye i-bolt ekhethekileyo yokumisa iholwa kunye neziko lokumisa eliphawulwe kuyo. Umgangatho we-transformer kufuneka udibaniswe ngokuthembekileyo kwinkqubo yokukhusela yokukhusela ngeli nqanaba. Xa i-transformer ine-casing, i-casing kufuneka idibaniswe ngokuthembekileyo kwinkqubo yokumisa. Xa i-low-voltage side ithatha inkqubo ye-wire-four-four system, umgca ongathathi hlangothi kufuneka udibaniswe ngokuthembekileyo kwinkqubo yokumisa.
5. Ukuhlolwa kweTransformer ngaphambi kokusebenza
Khangela ukuba zonke izibophelelo zikhululekile, ingaba uxhulumaniso lombane luchanekile kwaye luthembekile, ukuba umgama wokugquma phakathi kweendawo eziphilayo kunye neendawo eziphilayo emhlabeni udibana nemimiselo, akufuneki kubekho umcimbi wangaphandle kufuphi ne-transformer, kunye nomphezulu wekhoyili kufuneka Hlambuluka.
6. Ukugunyaziswa kweTransformer ngaphambi kokusebenza
(1) Jonga umlinganiselo we-transformer kunye neqela loqhagamshelo, ulinganise ukuxhathisa kwe-DC kwi-windings ye-voltage ephezulu kunye nephantsi, kwaye uthelekise iziphumo kunye nedatha yovavanyo lwefektri enikezwe ngumenzi.
(2) Jonga ukunyanzeliswa kokugquma phakathi kweekhoyili kunye nekhoyili emhlabeni. Ukuba ukuchasana kwe-insulation kuphantsi kakhulu kunedatha yokulinganisa kwefektri yesixhobo, kubonisa ukuba i-transformer imanzi. Xa ukuxhatshazwa kwe-insulation kuphantsi kwe-1000Ω / V (i-voltage yokusebenza), i-transformer kufuneka yomiswe.
(3) Umbane wovavanyo lovavanyo lokumelana nombane kufuneka uhambelane nemigaqo. Xa usenza uvavanyo lwe-voltage ephantsi, inzwa yobushushu TP100 kufuneka isuswe. Emva kovavanyo, inzwa kufuneka ibuyiselwe kwindawo yayo yokuqala ngexesha.
(4) Xa i-transformer ixhotyiswe ngefeni, ifeni kufuneka isebenze kwaye iqinisekise ukuba isebenza ngokuqhelekileyo.
7. Ukusebenza kovavanyo
Emva kokuba i-transformer ihlolwe ngononophelo ngaphambi kokuba iqalise ukusebenza, inokuthi inikwe amandla okusebenza ngolingo. Ngethuba lokusebenza kwesilingo, ingqwalasela ekhethekileyo kufuneka ihlawulwe ukujonga amanqaku alandelayo. Nokuba kukho izandi ezingaqhelekanga, ingxolo kunye nokungcangcazela. Nokuba kukho amavumba angaqhelekanga afana nevumba elitshileyo. Nokuba kukho ukuguquguquka kwebala ngenxa yokufudumeza kwendawo. Nokuba umoya ulungile. Ukongeza, la manqaku alandelayo nawo kufuneka aqatshelwe.
Okokuqala, nangona iziguquli zodidi olomileyo zixhathisa kakhulu ukufuma, ngokuqhelekileyo ziyizakhiwo ezivulekileyo kwaye zisesichengeni sokufuma, ngakumbi iinguqu zodidi ezomileyo eziveliswe kwilizwe lam zinezinga eliphantsi lokugquma (ibakala elisezantsi lokugquma). Ke ngoko, abaguquli bohlobo olomileyo banokufikelela kuphela ekuthembekeni okuphezulu xa besebenza kumswakama ongaphantsi kwama-70%. Iziguquli zodidi olumileyo kufuneka kwakhona ziphephe ukuvala ixesha elide ukuphepha ukufuma okunzulu. Xa ixabiso lokumelana ne-insulation lingaphantsi kwe-1000 / V (i-voltage yokusebenza), kuthetha ukuba i-transformer imanzi kakhulu kwaye umsebenzi wokulinga kufuneka umiswe.
Okwesibini, i-transformer eyomileyo esetyenziselwa i-step-up kwizikhululo zamandla ihluke kwi-oil-immersed transformer. Akuvunyelwe ukusebenzisa i-low-voltage side kwisekethe evulekileyo ukuze ugweme ukugqithisa kwinqanaba legridi okanye ukubetha kombane kumgca, onokubangela ukuba ukuchithwa kwe-transformer eyomileyo kuphulwe. Ukuze kuthintelwe ingozi yokuhanjiswa kwe-overvoltage, isethi yezithinteli zokukhusela umbane (ezifana ne-Y5CS zinc oxide arresters) kufuneka zifakwe kwicala lebhasi ye-voltage ye-ome-type transformer.
Ixesha lokuposa: Sep-03-2024