Njengamanje, abaguquli bamandla omile baseChina iningi liziqephu ezintathu eziqinile ezakha uchungechunge lwe-SC, njenge: SCB9 uchungechunge lwesigaba sesithathu esiguqula isiguquli, i-SCB10 uchungechunge lwesigaba sesithathu se-foil transformer SCB9 uchungechunge lwesigaba sesithathu se-foil transformer. uhla lwe-6-35kV, ubukhulu obukhulu obufinyelela ku-25MVA.I-transformer eyomile ihlukaniswe ikakhulukazi yaba i-transformer eyomile ne-resin dry transformer izigaba ezimbili.
1.Okufakiwe uhlobo olomile isiguquli
Intambo yesiguquli esikhulelwe esomile eChina imbozwe ngocingo lwengilazi, futhi iphedi lishisa licindezelwe ngezinto ezihambisana nokuvikela izinto. Isetshenziswa kakhulu eziteshini zamandla kagesi kanye nasezakhiweni eziphakeme ezinokumelana okuhle nomlilo.
Ngenxa yomehluko wokumithisa upende, ukwahlukaniswa kwe-transformer kuhlukaniswe ngo-B, F, H, C, ukwahlukanisa okuyinhloko nokumile (ukwahlukanisa okuyinhloko phakathi kokugunda nokugwingciza naphakathi kokugudluza nokwakheka okuyisisekelo.
Ukuma okuqondile kubhekisa ekuhlukanisweni phakathi kwamaphoyinti ahlukene nezingxenye ezahlukahlukene zethrafikhi efaka ngamandla ahlukahlukene, ikakhulukazi kufaka phakathi ukusebenza kokufakwa ngaphakathi kwamaphethelo, izingqimba kanye nezingxenye zensimbi.
Lolu hlobo lwe-transformer luthinteka yimvelo kune-resin type dry transformer, ukubukeka nesisindo nakho kukhulu, okukhipha ekhaya nakwamanye amazwe kuvame ukwehla.
Kunezimpawu zokugcina ekugcineni zombili zemikhawulo, hhayi ukwesaba umvuthwandaba, ukumelana nomlilo okuqinile, ukuvimbela umlilo emlilweni ovulekile ngo-750 ℃, uhlobo olusha lwethrafikhi eyomile. Imikhiqizo ehola i-transformer ingahlukaniswa ngezigaba ezintathu ezilandelayo.
Uhlobo lokuqala, olubizwa ngokuthi yi-wire wound casting transformer, i-voltage yayo ephakeme ngocingo lwenxeba lokuqhekeka isilinda, i-voltage ephansi iyisilinda senxeba (noma isilinda ehlukanisiwe); I-Li Qian, iShaanxi Provincial Electric Power (group) Co., LTD. Inothi lokungaphonswa kokugcwaliswa.
Uhlobo lwesibili, olubizwa ngokuthi yi-foil-wound casting transformer, amandla alo aphezulu ahlukaniswe ngohlobo lwe-foil-wound casting, i-voltage ephansi yohlobo lwe-copper foil (noma i-aluminium foil) uhlobo lokufaka; ukusakaza kufakwa ngokugcwalisa.
Uhlobo lwesithathu, ingcindezi ephezulu yocingo lwenxeba lokuqhekeka kwesilinda, uhlobo oluthile lwengcindezi yethusi (noma i-aluminium foil) uhlobo lokugwedla; Ukulingiswa kuphonswa ngaphandle kokugcwaliswa.
Izinhlobo ezintathu ezingenhla zemikhiqizo zinezici zazo ekukhiqizweni nasekusebenzeni kwemikhiqizo, futhi njengamanje zinesabelo esithile semakethe emakethe. Kulesi sihloko, sigxila engxoxweni yama-transformer enxeba yocingo.
2. Intambo isilonda cast cast
2.1. Izici zesakhiwo
Esitshalweni samandla sesibili saseBaoji, esifundazweni saseShaanxi, ama-transformer omile asetshenziswa efektri wonke ahlanganiswe ngocingo aguqulayo, anamandla kagesi we-6 kV, umthamo we-100 kVA kuya ku-1600 kVA, nokufakwa kwangaphakathi.
Amandla aphansi naphansi we-voltage windings womkhiqizo enziwe ngocingo lwethusi, isilonda ngokuphelele, ingilazi yefayibha eqinisiwe, ukwahlukanisa okuncane, i-resin ngaphandle kokugcwalisa, ukuthela okukhulelisiwe ngaphansi kwesimo se-vacuum, futhi kwelashwa ngokuya ngejika elithile lokushisa elapha.
Amandla aphezulu we-voltage amukela isakhiwo se-silinda esikhethekile, futhi i-voltage ephansi yamandla isebenzisa uhlobo lwesilinda esinemigqa eminingi, uhlobo lwesilinda oluhlukanisiwe noma uhlobo olukhethekile oluhlukaniswe ngosilinda ngokwezinga le-voltage.
2.2 Izici Zobuchwepheshe
2.2.1 umthelela wokumelana nentambo yesilonda ethululelwa i-transformer hv emazombezombe isebenzisa isakhiwo esikhethekile se-cylindrical, lesi sakhiwo sincike esigabeni esivamile se-bobbin emazombezombe, uhlobo olujwayelekile lwesigatshana silinda zombili zizuze njengefa izinzuzo zokumelana nomthelela we-bobbin, futhi kwaxazululwa ungqimba lwe-bobbin emazombezombe i-voltage phakathi kokuphikisana, isakhiwo esisezingeni elifanele, esivame ukubizwa ngokuthi isakhiwo esingena-resonant emazombezombe.
Uma kuqhathaniswa nesilinda esehlukanisiwe ejwayelekile, isilinda ekhethiwe ehlukanisiwe ingaqhubeka nokunciphisa amandla kagesi phakathi kwezendlalelo, ithuthukise ukusatshalaliswa kwamandla, futhi ithuthukise kakhulu amandla omthelela wokumelana nokuvuthwa komkhathi nokusebenza kwamandla okuvota.
Ukumelana nomthelela akuhlobene kuphela nokwakheka kwe-winding, kepha futhi kuya ngekhwalithi yokukhipha ye-winding kanye nezakhiwo zikagesi zento evikela.
Ngemuva kokuthi ukwakhiwa komkhiqizo kuqediwe, uthelwa nge-resin emsulwa esimweni se-vacuum, futhi akukho okugcwaliswayo okungeziwe, ukuze ukusebenza kokugeleza kwe-resin kungancishiswa.
Futhi ngenxa yokuthi i-winding ilinyazwa ngocingo, i-resin ingagcwalisa ngokuphelele i-winding, noma ngabe isuka ngakuluphi uhlangothi lwe-axial noma ye-radial yensimbi, futhi akukho bubble ngaphakathi.
Okufingqiwe: Leli phepha lethula ukuhlukaniswa kanye nezici ze-transformer eyomile, futhi ligxile ekwakhiweni kwesakhiwo se-wire isilonda esithululela i-transformer, imininingwane yezobuchwepheshe, uhlelo lokupholisa, uhlelo lokulawula ukushisa njalonjalo, kufingqa ithemba lokuthuthuka le-transformer eyomile. i-transformer eyomile; Ukuhlukaniswa kwesilingo se-Wire isilingo.
I-resin nengilazi yefayibha eyakhiwe ngokufakwa okuqinile, hhayi kuphela ukumelana nomthelela omuhle, nokukhishwa kwendawo kuncane kakhulu.
2.2.2. Amandla amahle omshini nokumelana okuqinile kwesikhashana. Ngohlobo oluhlukanisiwe lwe-cylindrical lwentambo olucijayo, ngemuva kokuthululela i-vacuum, i-resin ingafakwa phakathi kwezendlalelo, ukujika nezingxenye zensimbi ngesikhathi esisodwa.
Ngemuva kokuphulukiswa, i-resin, i-wire kanye nengilazi yefayibha zihlanganiswe ngokuqinile ukwakha isakhiwo somzimba esiqinile.Izakhiwo ezinamandla amakhulu ezakhiwe esakhiweni zinquma ukuthi imikhiqizo yokuphonsa inxeba yocingo inokuphikiswa okuhle kwesikhashana.
I-coefficient yokunwetshwa okushisayo kwezinto zokwakha ezihlanganisiwe ezakhiwe ngokuphulukisa i-resin nengilazi yefayibha (18 ~ 20) × 10-6 / K, futhi i-coefficient yokwanda yethusi esetshenziswe ku-178 10-6 / K, okuyi ngokuyisisekelo eduze kwalaba ababili. Iqeda ukucindezela komshini phakathi komqhubi ojikayo nezinto ezivimbayo ezibangelwa ukwanda okushisayo nokuncipha okubandayo ngesikhathi sokusebenza kwe-transformer.Kusuka empandeni ukuqeda into yokuqhekeka.
Njengoba umkhiqizo uphonswa nge-resin ekucindezelekeni okuphezulu nangaphansi futhi ingqikithi yensimbi ifakwe i-resin, inomswakama oqinile nokubola kokugqwala.Uma umswakama ohlobene nomoya ungu-100%, usengasebenza isikhathi eside.
Ngoba ukwahlukaniswa okuhlanganisiwe okwenziwe nge-resin emsulwa nengilazi yefayibha kunamandla aphezulu ngokwedlulele kagesi, ubukhulu bendawo yokwambathiswa komkhiqizo bungu-1.5 ~ 2 mm kuphela, obuthuthukisa kakhulu ukusebenza kahle kokushiswa kokushisa kwendawo ejiyayo.
2.3. Ukupholisa uhlelo nokuvikelwa
Ama-transformer omile apholisiwe ukupholisa komoya wemvelo nokupholisa okuphoqelelwa komoya. Ukupholisa komoya okwemvelo kuyamukelwa ukuqinisekisa ukusebenza okujwayelekile kwe-transformer ngaphansi komthwalo olinganisiwe.Iziguquli ezomile ezisetshenziswe ku-baoji No.2 isitshalo samandla zonke zipholile ngomoya ophoqelelwe yi-radial fan.
Ngemuva kokupholisa ngokusakazwa komoya okuphoqelelwe, umthamo we-transformer wohlobo olomile nge-800 kVA nangaphansi ungakhuphuka ngo-40%, kuthi owe-dry-type transformer onama-800 kVA nangaphezulu ungakhuphuka ngo-50%, futhi ungaqhubeka ngokuqhubekayo.
I-transformer yohlobo olomile ngokuvamile ivikela i-IP00, okungukuthi, ngaphandle kwegobolondo, ukusetshenziswa kwangaphakathi, isitshalo samandla sesibili seBaoji ukusetshenziswa kwale modi yokuvikela. Futhi ngokuya ngezidingo zomsebenzisi, engeza igobolondo lokuvikela.
Indlu ye-IP20 ivimbela ukungena kwezinto eziqinile zangaphandle ezingaphezulu kuka-12 mm futhi inikezela isithiyo ezingxenyeni ezibukhoma. Lapho ukuvikelwa kwe-IP23, ngaphandle komsebenzi wokuvikela we-IP20, futhi inomsebenzi wokuvimbela ukubhobhoza kwamanzi.
2.4. Uhlelo lokulawula ukushisa
Ukusebenza okuphephile nokunokwethenjelwa kanye nempilo yensizakalo ye-transformer yamandla kuncike kakhulu ekuvikelekeni okuphephile nokwethembekile kwe-transformer emazombezombe.Izinga lokushisa kokweqa okudlula izinga lokushisa lokuvikela kungenye yezizathu eziyinhloko zokuthi ukwahlukaniswa kubhujisiwe futhi isiguquli asikwazi ukusebenza ngokujwayelekile.
I-SC uchungechunge lwensimbi yokukhipha isiguquli sisebenzisa i-XMTB isistimu yokuvikela ukulawula ukushisa okuzenzakalelayo.I-platinum ezishisayo ukumelana namazinga okushisa isici sigxiliwe ekujikeni kokuqala kocingo oluphansi olunamandla kagesi ukuthola ukuhluka kokushisa kogqinsi, kubonise izinga lokushisa lezintathu -phase i-voltage ephansi, futhi ibanikeze ukuvikelwa okushisayo kubo.
Ngokushintshwa kwesilinganiso sokushisa nomthwalo, lapho i-winding ifinyelela izinga lokushisa lomkhawulo, isilawuli sethempelesha sizothumela ngokuzenzakalela isignali yokulawula ukuqala kwe-fan (110 ℃), i-fan stop (90 ℃), i-alamu (120 ℃) nohambo (145 ℃), ukuze umkhiqizo ube nokuvikelwa okuthembekile kokulayisha ngaphezulu kokusebenza.
I-SC3 series wirewound casting transformers yamukela ubuchwepheshe obunelungelo lobunikazi be-M & C bokutholwa kwamazinga okushisa nokulawulwa kwe-transformer windings, futhi ikhiqize isilawuli sokushisa esingathola ngqo ukushisa kwama-windings, futhi siqaphele ukulawula okuphoqelelwe komoya (i-AF), i-alamu yokushisa ngokweqile kanye nohambo lokushisa ngaphezulu isiguquli.
Ngemuva kokulungisa amaphutha okujwayelekile kwesilawuli sokushisa, isiguquli siqala ukufakwa ekusebenzeni kwenethiwekhi, bese isilawuli sokushisa sinikwa amandla okusebenza. Isilawuli sokushisa sisesimweni sokulawula okuzenzakalelayo, futhi ukutholwa kokushisa nokuvikelwa kwe-transformer kuyenziwa. Lapho izinga lokushisa le-winding lingaphezulu kuka-110 ℃, isilawuli sethempelesha siqala i-fan yokupholisa okuphoqelelwe; Uma ithempelesha elijikayo lehla ngaphansi kuka-90 ℃ ngaphansi kokupholisa komoya okuphoqelelwe, ifeni iyama.
Uma izinga lokushisa le-winding liqhubeka lenyuka, isilawuli sethempelesha sizokhipha i-alamu yokushisa ngokweqile (155 ℃) kanye nesiginali ye-overtemperature (170 ℃) .Uma isilawuli sethempelesha sehluleka futhi singesuswe okwesikhashana, susa isilawuli sethempelesha, isiguquli ingaqhubeka nokusebenza, idinga kuphela ukuqapha nokuqinisekisa ukuthi isiguquli sisesimweni sokusebenza esijwayelekile.
3. Ukuqhathanisa phakathi kwe-transformer eyomile ne-transformer egxilise uwoyela
Izinzuzo ezibalulekile nezindleko eziphansi zamaguquli acwiliswe uwoyela kunzima ukuzisusa ngamanye ama-transformer.Ku izidingo zangaphandle nezokuvikela umlilo ezindaweni ezijwayelekile, njengamanje nasesikhathini esizayo, zisazoguqulwa kakhulu ngamafutha .
Kepha ezindaweni ezinezidingo eziphezulu zokuvikela umlilo, kusetshenziswa uhlobo olomile noma okungaguquki okusetshenziswa kuketshezi futhi okungashisi oketshezi.I-transformer eyomile inamandla amakhulu ngokweqile kune-transformer egxiliswe uwoyela, ikakhulukazi ngoba ubukhulu bamanje besiguquli esomile buphansi , umthamo wokushisa mkhulu, futhi isikhathi sokugwingciza sihlala sikhulu.
Uma kuqhathaniswa ne-transformer egxilile uwoyela, isimo sokusebenza se-insulation esomile sithuthukisiwe.I-transformer egxilile yamafutha isebenzisa izindawo eziningi, ukufakwa kwangaphandle ngaphezulu.
Uhla lokuphakelwa kwamandla kagesi owomile luncane, lusebenza ngaphakathi endlini uma kuqhathaniswa nama-transformers agxilise uwoyela, unenkinga yamandla kagesi aphansi wombani, ikhanda le-wave elihamba kancane kanye nesiteleka esincane sombani.
Izishintshi ezomile zivame ukuvikelwa ngababoshwe ngensimbi oxide, abagcini nje ngokunciphisa ukuqhuma kwamandla asemkhathini, kepha futhi bakhawulela nokuvota kwangaphakathi.
Isikhathi Iposi: Jul-26-2021