Iintlobo zeeCores kwiTransformers: Ukwenza ngokwezifiso uyilo lweemfuno ezithile

Intshayelelo:

Iitransformers zidlala indima ebalulekileyo ekudluliseni nasekusasazweni kwamandla ombane. Umbindi yinxalenye ebalulekileyo yetransformer, enoxanduva lokulungiselela ukudluliselwa kwamandla ngokufanelekileyo. Nangona kunjalo, ayizizo zonke iitransformers ezinoyilo olufana nombindi. Kukho iintlobo ezahlukeneyo zeecores ezikhoyo, nganye yenzelwe ukuhlangabezana neemfuno ezithile. Kweli nqaku, siza kuhlola iintlobo ezintlanu ezahlukeneyo zeecores ezisetyenziswa rhoqo kwiitransformers size sihlolisise iimpawu zazo ezizodwa, iingenelo, kunye nokusetyenziswa kwazo.

Uhlobo lweShell Core

I-core yohlobo lweqokobhe, eyaziwa ngokuba yi-core-type transformer, yenye yezona zinto zidumileyo kushishino. Iqulathe iipleyiti ze-core ezi-rectangular okanye ezijikelezileyo ezifakwe i-laminated core ukuze zenze i-closed magnetic circuit. Ezi pleyiti zenziwe ngee-silicon steel sheets ezibhityileyo, ezinciphisa ukulahleka kwamandla ngenxa ye-eddy currents. Ii-windings eziphambili nezesibini zijikelezwe kumlenze ophakathi we-core.

I-core yohlobo lweqokobhe ineenzuzo ezahlukeneyo. Okokuqala, iqinisekisa inqanaba eliphantsi lokuvuza kwe-flux, okuncedisa ekusebenzeni kakuhle. Isekethe yemagnethi evaliweyo inciphisa kakhulu ilahleko zemagnethi, nto leyo ekhokelela ekuphuculweni kokusebenza ngokubanzi. Ukongeza, olu yilo lwe-core lubonelela ngozinzo olungcono loomatshini kunye nokuqina, nto leyo eyenza ukuba ifaneleke kwizicelo ezinzima.

I-core yohlobo lweqokobhe isetyenziswa kakhulu kwii-power transformers, apho kubandakanyeka khona amanqanaba aphezulu ombane kunye nemisinga emikhulu. Ukukwazi kwayo ukusingatha imithwalo emikhulu yamandla kunye nokugcina ukusebenza kakuhle kwenza ukuba ibe lukhetho olufanelekileyo kwiinethiwekhi zokusasaza umbane kunye nezicwangciso zemizi-mveliso.

I-Toroidal Core

Ngokungafaniyo nomongo wohlobo lweqokobhe, umongo we-toroidal unesakhiwo esimile okwedonathi, esifana nesangqa. Wenziwa ngokubhijela umcu oqhubekayo we-silicon steel alloy kwisimo se-toroidal. Ukubhijela kuqulathe ukujika okuphindaphindiweyo, okuqinisekisa uyilo olusebenzayo noluncinci.

Enye yezona nzuzo ziphambili ze-toroidal core kukusebenza kakuhle kwamandla. Imilo engqukuva inika indlela emfutshane yemagnethi, inciphisa ubude bentambo efunekayo kwii-windings. Oku kubangela ukuxhathisa okuphantsi kwaye kunciphisa ukulahleka kwamandla ngenxa yokuxhathisa kombane.

I-toroidal core yaziwa ngemitha yayo ye-electromagnetic ephantsi, nto leyo eyenza ukuba ifaneleke ukusetyenziswa apho kufuneka kuncitshiswe ukuphazamiseka kwe-electromagnetic (EMI). Isetyenziswa kakhulu kwizixhobo zesandi, izixhobo zonyango, kunye ne-elektroniki yedijithali ezifuna ukusebenza ngaphandle kwengxolo. Ukongeza, uyilo lwayo oluncinci luvumela ukuhlanganiswa okulula kwiindawo ezilinganiselweyo.

I-E-Core

I-E-core, ekwabizwa ngokuba yi-split-core okanye i-UI core, ifumana igama layo kwi-cross-section yayo eyahlukileyo ye-core enomfanekiso we-E. Iqulethe iindawo ezintathu ezahlukeneyo: amalungu amabini angaphandle kunye nomlenze ophakathi, okwenza imo efana nonobumba u-'E'. Ii-windings eziphambili nezesibini zihlala zibekwe kwicandelo eliphakathi (umlenze) we-E-core.

Enye yeenzuzo ezibalulekileyo ze-E-core kukuba kulula ukuyihlanganisa. Uyilo lwe-split-core luvumela ukujijwa nokufakelwa kwee-windings ngokulula. Ukongeza, ukubakho kwezithuba zomoya kumbindi kubonelela ngokulinganisela okuhle kwemagnethi, kunciphisa umngcipheko wokugcwala kunye nokwandisa ukusebenza kakuhle.

Ii-E-cores zisetyenziswa kakhulu kwiitransformer ezincinci ezifana neetransformer zamandla amancinci okanye iitransformer zesignali. Ubungakanani bazo obuncinci, kunye nokuhamba kakuhle kwemagnethi, kuzenza zilungele izixhobo ezincinci, iisekethe ze-elektroniki, kunye nezixhobo zonxibelelwano apho indawo ingumqobo.

Isiseko esinomqolo

Njengoko igama lisitsho, umbindi wombhoxo unecandelo elinqamlezileyo elingumbhoxo. Wenziwe ngamaleko amaninzi ee-laminations zentsimbi ye-silicon ebhityileyo ezihlanganiswe ndawonye. Olu yilo lombindi lusetyenziswa kakhulu kwii-transformers ezisebenzisa amaza aphantsi kunye nezixhobo zamandla.

Enye yeenzuzo eziphambili zesiseko esinoxande kukwakhiwa kwaso okufanayo nokuncinci. Imilo yoxande ivumela indawo ejikelezileyo elungelelanisiweyo, evumela ukusetyenziswa ngokufanelekileyo kwendawo ekhoyo. Ukongeza, olu yilo loxande lunciphisa ubude beendlela zemagnethi, nto leyo ekhokelela ekunciphiseni ukuvuza kunye nokulahleka koxande.

Ii-cores eziziingxande zisetyenziswa rhoqo kwizicelo ezifana nee-current transformers (CTs) kunye nee-voltage transformers (VTs) ezisetyenziselwa iinjongo zokulinganisa nokukhusela. Ubuncinci kunye nokufana koyilo lwe-core kwenza ukuba ifaneleke kwizixhobo ezifunekayo kwizikhululo zombane, kwizityalo zoshishino, nakwiigridi zombane.

I-Wound Core

I-wound core, eyaziwa ngokuba yi-barrel okanye i-drum core, ine-strip eqhubekayo ye-silicon steel wound ibe yi-cylindrical. I-winding ijikeleza okanye inde ngokuxhomekeke kwiimpawu ezifunwayo ze-transformer. Olu yilo lwe-core lubonelela ngeenzuzo ezininzi, nto leyo eyenza ukuba ibe lukhetho oludumileyo kwizicelo ezithile.

Enye yeenzuzo ezibalulekileyo ze-wound core kukuzinza kwayo okuhle kakhulu kubushushu. Imilo ye-cylindrical ivumela ukutshatyalaliswa kobushushu okufanayo, ukuqinisekisa ukuba iindawo ezishushu zincinci kwaye ukusebenza ngcono phantsi kweemeko ezahlukeneyo zendalo. Ukongeza, i-wound core inika amandla aphuculweyo oomatshini, okwenza i-transformer ikwazi ukumelana noxinzelelo loomatshini.

Ii-wound cores zisetyenziswa kakhulu kwii-transformers zokusasaza, apho kubandakanyeka khona amanqanaba aphantsi ombane, kwaye zihlala zisebenza ixesha elide ngaphandle kokugcinwa rhoqo. Ulwakhiwo lwazo oluqinileyo kunye nokukwazi kwazo ukuphatha imisinga ye-short-circuit kuzenza zilungele iimeko zangaphandle kunye nokufakelwa kwemizi-mveliso.

Isiphelo

Iitransformer ziza ngeemilo nobukhulu obahlukeneyo, zilungele iimfuno ezahlukeneyo zokusasazwa kwamandla. Ukukhetha uyilo lwecore kudlala indima ebalulekileyo ekumiseleni ukusebenza kakuhle, ukuthembeka, kunye nokusebenza kwetransformer. Ngelixa icore yohlobo lweshell kunye necore yetoroidal zisetyenziswa rhoqo kumashishini, usetyenziso oluthile ludla ngokufuna ukusetyenziswa kwee-E-cores, ii-cores eziziingxande, okanye ii-cores eziziinxeba.

Ukuqonda iimpawu ezizodwa kunye neenzuzo zeentlobo ezahlukeneyo ze-core kuvumela iinjineli kunye nabayili ukuba bakhethe ukhetho olufanelekileyo kwiimfuno zabo ezithile. Nokuba kukuphucula ukusebenza kakuhle kwamandla, ukunciphisa ukuphazamiseka kwe-electromagnetic, okanye ukwandisa ubuncinci, ukwenza ngokwezifiso uyilo lwe-transformer ngohlobo olufanelekileyo lwe-core kuphakamisa ukusebenza kwaye kunegalelo ekudlulisweni nasekusasazweni kwamandla ombane okungenamthungo. Ngoko ke, kwixesha elizayo xa udibana ne-transformer, thatha umzuzwana uqonde amandla afihlakeleyo e-core yayo.