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Xadhkaha magnetic field-ka ee uu dhaliyo gariiraddu dhammaan ma wada mari karaan gariiradda sare, markaa inductance-ka soo saarta goobta magnetic leakage waxaa loo yaqaan 'leakage inductance'. Waxa loola jeedaa qayb ka mid ah qulqulka magnetic ee lumay inta lagu guda jiro habka isku-xidhka beddelayaasha aasaasiga ah iyo kuwa sare.
Qeexida inductance dareere, sababaha dheecaanka dheecaanka, waxyeelada inductance dareere, dhowr arrimood oo saameeya inductance dheecaanka, hababka ugu muhiimsan ee lagu yareeyo inductance dheecaanka, cabbirka dheecaanka dheecaanka, farqiga u dhexeeya inductance dareere iyo qulqulka magnetic.
Qeexida Inductance Leakage
Inductance-ka dheecaanku waa qayb ka mid ah qulqulka magnetic ee lumaya inta lagu jiro habka isku-xidhka ee asaasiga iyo sare ee matoorka. Inductance inductance ee transformer-ku waa in ay ahaataa in xadhkaha birlabeedka xoogga ah ee ka dhasha gariiradda aanay dhammaan mari karin gariiradda sare, markaa inductance-ka soo saarta dheecaanka magnetic waxaa loo yaqaannaa inductance.
Sababta dheecaanka inductance
Inductance leakage waxay dhacdaa sababtoo ah qaar ka mid ah qulqulka hoose (sare) kuma xidhna heerka labaad (primary) iyada oo loo sii marayo xudunta, laakiin waxay ku soo noqotaa heerka koowaad (sare) iyada oo loo marayo xidhitaanka hawada. conductivity kaamerada ee silig ku saabsan yahay 109 jeer ka hawada, halka permeability ee ferrite shey core loo isticmaalo Transformers uu yahay kaliya 104 jeer ka hawada. Sidaa darteed, marka qulqulka birlabku uu dhex maro wareegga birlabeedka ee uu sameeyay xudunta ferrite, qayb ka mid ah ayaa ku soo daadan doonta hawada, iyada oo samaynaysa wareegga birlabeedka xiran ee hawada, taas oo keenta dheecaan birlab ah. Iyo sida soo noqnoqoshada hawlgalka korodho, permeability ee alaabta ferrite core la isticmaalo hoos u dhac. Sidaa darteed, marka la eego soo noqnoqoshada sare, dhacdadani waa mid aad u muuqata.
Khatarta inductance dareere ah
Inductance inductance waa tilmaame muhiim ah oo beddelka transformers, kaas oo saamayn weyn ku leh tilmaamayaasha waxqabadka beddelka sahayda korontada. Jiritaanka inductance dareere waxay dhalin doontaa dib u soo celinta xoogga elektiroonigga ah marka aaladda la damiyo, taas oo ay fududahay in ay keento burburka xad-dhaafka ah ee qalabka beddelka; inductance dareere waxay sidoo kale la xiriiri kartaa Awoodda la qaybiyey ee wareegga iyo awoodda la qaybiyey ee gariiradda beddelka waxay sameeyaan wareeg oscillation ah, taas oo ka dhigaysa wareegga wareegga oo u iftiimin tamarta korantada dibadda, taasoo keenta faragelinta korantada.
Dhowr arrimood oo saameeya inductance dheecaanka
Transformer-ka go'an ee hore loo sameeyay, inductance-ka dheecaanku waxa ay la xidhiidhaa arrimahan soo socda: K: isku-xidhka dabaysha, kaas oo u dhigma inductance-ka dareeraha. Dabaylaha hoose iyo sare ee fudud, qaado 3. Haddii dabaysha sare iyo dabaysha aasaasiga ahi ay si kala duwan u dhaawacmaan Kadib, qaado 0.85, taas oo ah sababta habka sandwijka loogu taliyey, inductance dheecaanku aad ayuu u yareeyaa, laga yaabaa in ka yar 1/3 ee asalka ah. Lmt: Celceliska dhererka wareeg kasta ee dabaylaha oo dhan ee qalfoofka Sidaa darteed, naqshadeeyayaasha beddelka waxay jecel yihiin inay doortaan xudunta leh xudunta dheer. Hadba dabayshu badato, waa yaraanaysaa inductance dareere ah. Aad bay faa'iido u leedahay in la yareeyo inductance dareere ah iyadoo la xakameynayo tirada wareegyada dabaysha ilaa ugu yaraan. Saamaynta inductance waa xidhiidh quadratic ah. Nx: tirada wareegyada dabaylaha W: balladhka dabaysha Tins: dhumucda dahaarka dabaysha bW: dhumucda dhammaan dabaylaha beddelka dhammeeyey. Si kastaba ha ahaatee, habka dabaysha ee sandwichku wuxuu keenaa dhibaatada in awoodda dulinku korodho, waxtarka ayaa hoos u dhacaya. Awoodahan waxa sababa awoodaha kala duwan ee gariiradaha ku xiga ee dabaysha midaysan. Marka daaranku damiyo, tamarta ku kaydsan waxa lagu sii dayn doonaa qaab bir ah.
Habka ugu muhiimsan ee lagu dhimo inductance dareere ah
Gariirada isku xidhan 1. Koox kasta oo dabaylaha ah waa in si adag loo dhaawacaa, waana in si siman loo qaybiyaa. 2. Xadhkaha sunta rasaasta ah waa inay ahaadaan kuwo si fiican loo habeeyey, iskuna day inay samaystaan ​​xagal toosan, kuna dhawaadaan gidaarka qalfoofka. 4 Lakabka dahaadhka ah waa in la yareeyaa si loo daboolo shuruudaha korantada iyo haddii ay jirto meel bannaan, tixgeli qalfoofka dheer oo yaree dhumucda. Haddii ay tahay gariiradda lakabka badan, khariidadda qaybinta goobta magnetic ee lakabyo badan oo gariirad ah ayaa loo samayn karaa si la mid ah. Si loo dhimo inductance-ka dareeraha, dugsiyada hoose iyo kuwa sareba waa la kala qaybin karaa. Tusaale ahaan, waxa loo qaybiyaa hoose 1/3 → secondary 1/2 → primary 1/3 → secondary 1/2 → primary 1/3 ama primary 1/3 → secondary 2/3 → primary 2/3 → secondary 1/ 3 iwm., awoodda ugu badan ee magnetic waa la dhimay ilaa 1/9. Si kastaba ha ahaatee, gariiradaha ayaa aad loo qaybiyaa, habka dabayshu waa adag tahay, saamiga u dhexeeya gariiradaha ayaa kordhay, qodobka buuxinta ayaa hoos u dhacaya, mamnuucidda u dhaxaysa asaasiga iyo sare waa adag tahay. Xaaladda meesha wax-soo-saarka iyo tamarta wax-soo-gelinta ay aad u hooseeyaan, inductance-ka qulqulka ayaa loo baahan yahay inuu ahaado mid aad u yar. Tusaale ahaan, Transformer-ka waduhu waxa uu ku dhaawacmi karaa laba fiilood oo is barbar socda. Isla mar ahaantaana, xudunta birta ah ee leh ballac iyo dherer dariishad weyn ayaa la isticmaalaa, sida nooca dheriga, nooca RM, iyo birta PM. Ogsajiin waa magnetic, si xoogga magnetic ee daaqadu aad u hooseeyo, iyo inductance yar oo dareere ah ayaa la heli karaa.
Cabbirka inductance dareere ah
Habka guud ee lagu cabbiro inductance dareere waa in wareegga labaad (primary) dabayl gaaban, la cabbiro inductance ee aasaasiga ah (secondary), iyo qiimaha inductance ka soo baxay waa aasaasiga ah (secondary) ilaa sare (primary) inductance dareere ah. Inductance-ka-soo-baxa wax-soo-saarka wanaagsan waa inuusan ka badnaan 2 ~ 4% inductance u gaar ah. Marka la cabbiro qulqulka inductance-ka, tayada transformerka ayaa la qiimeyn karaa. Inductance dareere ah ayaa saameyn weyn ku leh wareegga wareegyada sare. Marka la dabaylo taransfooriyaha, inductance-ka dareeraha waa in la yareeyaa intii suurtogal ah. Inta badan qaababka "sandwijka" ee aasaasiga ah (sare) -sare (hoose) -hoose (sare) ayaa loo isticmaalaa in lagu dabaylo taransfooriyaha. si loo yareeyo inductance dareere ah.
Farqiga u dhexeeya qulqulka dareeraha iyo qulqulka magnetic
Inductance-ka dillaaca waa isku-xidhka u dhexeeya kan hoose iyo kan sare marka ay jiraan laba ama in ka badan oo dabaylo ah, iyo qayb ka mid ah qulqulka magnetic si buuxda uguma xidhna kan sare. Cutubka inductance-ka dheecaanku waa H, kaas oo ay dhaliso qulqulka magnetic-ka ee ka daadanaya kan hoose ilaa kan sare. Diidashada birlabku waxay noqon kartaa hal dabaylo ama dabaylo badan, iyo qayb ka mid ah qulqulka magnetic ma aha jihada qulqulka birlabeedka weyn. Unugga qulqulka qulqulka magnetic waa Wb. Inductance inductance waxaa sababa qulqulka birlabeedka, laakiin qulqulka birlabeedka qasab ma aha in uu keeno inductance dareere ah.