Ib txoj hauv kev los txo qhov tsis muaj load poob
Tsis-load poob yog ib qho tseem ceeb parameter ntawmtransformer, accounting rau 20% ~ 30% ntawm tag nrho cov transformer poob. Txhawm rau kom tsis txhob poob qis, nws yog ib qho tsim nyog yuav tsum txo qis tag nrho cov tub ntxhais, chav tsev poob thiab cov txheej txheem coefficient. Txoj hauv kev tseem ceeb los txo qhov tsis muaj kev thauj khoom yog raws li hauv qab no:
(1) Txais siab permeability silicon steel ntawv thiab amorphous alloy ntawv. Ordinary silicon steel ntawv thickness 0.3 ~ 0.35mm, poob qis, tuaj yeem siv tau 0.15 ~ 0.27mm. Nyob rau tib lub sijhawm, yog siv cov kauj ruam stacking, cov hlau tsis tuaj yeem raug txo los ntawm 8%. Laser irradiation, mechanical indentation thiab plasma kev kho mob tuaj yeem txo qhov poob siab permeability silicon steel ntawv. Lub eddy tam sim no poob ntawm amorphous alloy daim ntawv thiab silicon steel ntawv nrog silicon cov ntsiab lus ntawm 6.5% yog tsawg tshaj li ntawm cov high permeability silicon steel ntawv.
(2) Txo cov txheej txheem coefficient. Cov txheej txheem poob coefficient muaj feem xyuam rau ntau yam xws li cov ntaub ntawv silicon steel, annealing ntawm xuas nrig ntaus thiab shearing khoom, clamping degree thiab lwm yam. Nws tseem yog ib qho tseem ceeb heev los kho cov cuab yeej raug ntawm cov cuab yeej xuas nrig ntaus thiab shearing cov cuab yeej tsim nyog.
(3) Txhim kho cov txheej txheem tseem ceeb. Cov tub ntxhais tsis yog punched, iav daim kab xev tsis khi, lub ntsej muag kawg yog coated nrog curing xim, thiab interphase yog khi nrog high-strength steel daim kab xev. Daim phiaj kos duab txuas rau sab sauv thiab sab qis ntawm ob sab ntawm cov tub ntxhais kem yog ua los ntawm cov hlau tsis muaj hlau nplaum. Lub peev xwm loj hlau chips tsis yog pleev xim rau txhawm rau txhim kho kev sib sau coefficient thiab kev ua haujlwm txias. Ob lub yoke ntawm cov tub ntxhais hlau yog tsim los ntawm kev yuam cov cuab yeej thiab cov nplaum los ua ib qho khoom, tiaj tus, ntsug thiab siab precision tag nrho. Txo qhov dav ntawm lub duav ntawm cov tub ntxhais tuaj yeem txo qhov poob. Rau txhua txhua 1% txo qis hauv cheeb tsam, tsis muaj-load poob yuav raug txo los ntawm 0.3%. Cov hom sib txawv ntawm cov ntaub ntawv silicon steel hauv cov tub ntxhais yuav siv lub zog, yog li nws yuav tsum tau sib xyaw tsawg lossis tsis sib xyaw.
(4) Txo qhov loj ntawm lub qhov rais tseem ceeb. Hloov cov rwb thaiv tsev winding (thickness) los ntawm qhov tig mus tas li mus rau qhov hloov pauv hloov rwb thaiv tsev. Piv txwv li, raws li qhov cuam tshuam qhov hluav taws xob faib 120, 000/110 transformer, tig rwb thaiv tsev thickness ntawm ib kawg ntawm lub siab voltage winding thiab cov regulating seem yog 1.35mm, thiab lwm yam seem yog 0.95mm ib. Yog li ntawd, tom qab txo qhov loj ntawm lub qhov rais, cov hlau hnyav yog txo los ntawm 1.67%. Nyob rau hauv qhov kev nyab xeeb ntawm kev nyab xeeb, tsim nyog nqaim qhov kev ncua deb ntawm qhov siab thiab qis cua qhov tseem ceeb, txo cov roj hla ntawm lub ncuav mog qab zib, nqaim qhov kev ncua deb ntawm cov theem, thiab ntxiv dag zog rau kev kho rwb thaiv tsev (ntxiv rau kaum lub nplhaib, partitions, thiab lwm yam). Lub winding adopts ib nrab roj cov qauv ua kom luv qhov chaw nyob deb, hlau hnyav thiab hlau poob ntawm cov tub ntxhais kem.
(5) Tsim cov tub ntxhais uas tsis muaj suab nrov. Lub resonance zaus ntawm cov tub ntxhais hlau yog tsim nyob rau hauv qhov tsim nyog zaus ntu, kom nws tsis tuaj yeem tsim muaj zog resonance, thiab lub suab nrov txo cov nyhuv yog pom tseeb, thiab lub zog siv los txo cov suab nrov tuaj yeem txuag tau.
(6) Coil core transformer thiab peb-dimensional core transformer. Cov tub ntxhais dov muaj plaub lub kaum ntse ntse dua li ib txwm laminated core. Nruam winding ua rau tag nrho kev siv ntawm qhov chaw ntawm silicon steel ntawv thiab txais yuav cov txheej txheem annealing los txo qhov poob ntxiv. Rau R-coil core, seem lub luag haujlwm lub voj voog yog ze rau 100%. Lub yoke ntawm peb-dimensional core yog daim duab peb sab hauv cov duab thiab 25% sib zog dua li ntawm cov tub ntxhais tiaj tus. Cov xwm txheej no qhia tau tias dov thiab peb-dimensional cores muaj zog ntau dua.
2. Cov txheej txheem los txo cov load poob
Lub load poob nyiaj rau 70% mus rau 80% ntawm tag nrho cov poob, suav nrog winding DC tsis kam (pib poob), xaim vortex poob, interwinding ncig poob, xaim poob thiab cov yam ntxwv (xws li splints, steel platen, thawv phab ntsa, bolts. , hlau tub ntxhais rub phaj, thiab lwm yam). Txoj hauv kev tseem ceeb los txo qhov poob yog raws li hauv qab no:
(1) Txwv qhov poob ntxiv los ntawm kev sib nqus nqus. Xam cov ampere-turns tshuav thiab kho cov ampere-tig raws li qhov tshwm sim; Lub winding txais yuav qis-siab-siab lossis siab-tsawg-siab kev npaj; Txwv qhov dav thiab thickness ntawm txoj kab ncaj nraim; Xaiv txoj kev hloov pauv uas tsim nyog tshaj plaws raws li qhov chaw sib nqus; Siv cov xov hlau sib txuas los yog cov xov hlau sib txuas.
(2) Txo qhov luaj li cas ntawm lub ntsiab rwb thaiv tsev thiab longitudinal rwb thaiv tsev qauv. Lub high voltage winding txais kev sib npaug ntawm impulse voltage gradient faib tshuab, uas tuaj yeem txo qhov luaj li cas ntawm cov rwb thaiv tsev ntev. Nyias daim ntawv raj thiab qhov sib txawv ntawm cov roj me me tau txais los ntawm cov windings. Corrugated ntawv yog lub ntsiab rwb thaiv tsev; Cov duab ntawm txoj kev tsim yog raws nraim tib yam li ntawm cov equipotential, cov duab ntawm lub kaum sab xis yog zoo ib yam nrog cov duab ntawm cov kab equipotential, thiab lub kaum sab xis ntawm lub nplhaib yog siv los ua cov txheej txheem; Sab hauv txoj kab uas hla ntawm winding yog qhov txhab ntawm daim ntawv insulating, tab sis qhov nruab nrab ntawm txoj kab ntu yog muab nrog cov roj axial; Ntau acetal enamelled hlau yog siv, thiab QQ-2 los yog QQB acetal hlau yog siv es tsis txhob ntawm 0.45mm tuab daim ntawv-wrapped ca hlau. Vim tias qhov rwb thaiv tsev ntawm thawj ob lub lem yog 2 × (0). Feem ntau ntawm lawv siv cylindrical winding. Vim tias tsis muaj cov roj hla ntawm cov ncuav, qhov txias feem ntau yog nyob ntawm cov roj ntsug axial, zoo cua sov dissipation, zoo filling coefficient thiab cov yam ntxwv cuam tshuam, sib xws, thiab luv luv Circuit Court quab yuam; Tsim nyog txo qhov kev ncua deb ntawm lub ntsiab rwb thaiv tsev (inch, kawg).
(3) Cov txheej txheem cuam tshuam tau txais yuav raws li kev suav. Raws li qhov cuam tshuam rau kev suav, nws tau txiav txim siab tias cov qauv rwb thaiv tsev ntsug, ncoo, kev txhawb nqa thiab cov hlau chamfer nyob rau hauv zoo zoo; Xam cov xaim magnetic teb thiab eddy tam sim no faib los coj txoj kev hloov pauv; Lub winding axial faib yog sib xws, thiab cov hlua tseem ceeb yog ua los ntawm cov khoom tsis sib nqus. Lub hauv paus tseem ceeb thiab tus quab hlau yog muab nrog kev tiv thaiv tshwj xeeb kom txo tau qhov hluav taws xob; Lub siab regulating winding yog cais txheej los ntawm txheej. Cov txheej txheem yog sib sau ua ke, lub puab winding yog ncaj qha rau ntawm lub rwb thaiv tsev lub tog raj kheej, qhov siab yog nruj me ntsis tswj, txoj kab uas hla kam rau ua yog me me, lub teeb sib txawv me me, lub tes tsho kub txheej txheem tshiab yog saws, tag nrho cov tais thiab siab phaj yog siv. , lub winding yog transposed los ntawm Dinison daim ntawv, nrog lub siab kom qhuav, thiab lub winding yog muab tso rau hauv lub insulated drying chav tsev kom tsis txhob ya raws.
(4) Siv cov xaim hluav taws xob tsawg thiab tsis tshua muaj hluav taws xob. Siv cov duab kos kom rub tawm cov hlau tsis muaj oxygen, xws li tooj liab txuas ntxiv extrusion xovxwm. Yog tias nws tuaj yeem siv rau hauv transformers, nws tuaj yeem txuag lub zog thiab txo qhov ntim, thiab muaj qee qhov kev cia siab rau daim ntawv thov.
(5) Kev siv cov yam ntxwv ntawm cov qauv rwb thaiv tsev tsim tuaj yeem txo qhov ntim. Npog txheej, thaiv thaiv, thaiv thiab rwb thaiv tsev txheej txheej yog tsim kom tsim nyog los ntawm kev siv cov yam ntxwv ntawm transformer roj kua dielectric; Lub separator yog ntxiv rau qhov sib txawv ntawm cov roj me me los ntawm kev siv cov nyhuv ntawm cov roj. Siv cov nyhuv ntim ntawm cov roj siv cov ntawv corrugated; Siv cov nyhuv thickness ntawm insulating txheej hauv cov roj kom nce rwb thaiv tsev thiab ua kom tawg voltage, tab sis tsis tuab heev; Lub separator yog teem los ntawm kev siv lub siab tshaj plaws lub zog nyob deb ntawm cov yam ntxwv ntawm lub separator nyob rau hauv cov roj.
(6) Advanced rwb thaiv tsev qauv. Qhov tsim nyog winding yog saws los txhim kho lub filling coefficient, thiab cov tshiab kauv (los yog nruam) winding yog saws nyob rau hauv lub axial oil passage kom zoo txo lub winding ntim. Cov qauv compression ntawm cov khoom tsis yog xim hlau los yog cov khoom tsis sib nqus yog siv rau cov hlau nplaum sib nqus to kom pom tseeb, thiab qhov sib nqus flux leakage zawj yog hla nrog electromagnetic shielding, thiab cov khoom poob tuaj yeem txo los ntawm 3% mus rau 8%.
(7) Nyiam winding tiv thaiv sab hauv. Internal winding tiv thaiv ntsuas muaj xws li capacitor rings, zoo li qub hlau lem, series nyiaj (ntxiv ncuav mog qab zib capacitor), vaj huam sib luag muaj peev xwm screen, tangled winding los yog ntaub thaiv npog winding. Lawv tag nrho cov muaj peev xwm txo tau overvoltages siv rau thawj thiab longitudinal rwb thaiv tsev nyob rau hauv poob siab, yog li txo qhov ntim thiab lub zog noj ntawm transformer.
(8) Lub voj voog ntev ntev txuas nrog Yyn0 kom txo qhov siab thiab txuag hluav taws xob. Siv cov tub ntxhais hlau oblong, winding los yog oval winding lossis rectangular winding nrog rounded ces kaum yog nyob rau hauv kev xyaum ntau zog npaum li ib txwm voj voog. Yyn0 yog qis dua qhov txuas txuas los ntawm Dyn11, thiab peb tuaj yeem sib koom lub disc txuas txuas, uas muaj cov qauv yooj yim thiab ntim me me. Qhov qub yog 2% hnyav dua li tom kawg rau 500kVA transformers, hlau yog 6% hnyav dua, roj yog 11% hnyav dua, txuag cov ntaub ntawv thiab lub zog. Rau cov tshuab ziab khaub ncaws qhuav, qhov siab dua winding, qhov pom tseeb dua qhov sib txawv ntawm qhov kub thiab txias, uas yog qhov zoo rau cov cua sov dissipation thiab txuag hluav taws xob.
3. Cov txheej txheem los txo cov kev poob yuam kev
Stray poob yog ib qho tshwj xeeb ntawm kev thauj khoom poob, yog li cov txheej txheem los txo nws tau sib tham nyias. Qhov kev poob qis muaj xws li qhov poob ntawm cov khoom siv (core clips, shielding rings, thiab lwm yam). Poob los ntawm tus neeg xyuas pib (casing tuav); Kev poob ntawm cov xaim hluav taws xob sib txuas (los ntawm cov xov hlau tam sim no) thiab poob ntawm cov roj tso tsheb hlau luam. Muaj ntau ntau txoj hauv kev los txo qis kev poob qis:
(1) Raws li kev soj ntsuam sib nqus thiab kev ntsuas lub cev, kev siv cov tub ntxhais me me, tshem tawm ib theem nruab nrab kem core phaj, nce qhov sib txawv ntawm cov tub ntxhais nto, thiab siv cov khoom sib nqus lossis cov khoom tsis sib nqus rau cov tub ntxhais rub phaj. thiab cov txheej txheem (xws li bolts) nyob rau hauv qhov chaw xau, uas tuaj yeem txo qis kev poob ntawm cov qauv sab hauv.
(2) Rau lub thawv qhov hluav taws xob thiab ib feem ntawm lub thawv npog, ua tib zoo teeb tsa cov hlau los tswj cov hlau nplaum, siv cov phaj tooj liab thaiv lossis cov khoom tsis sib nqus, lub hau npog yog ua los ntawm txhuas. Lub silicon steel phaj platen kuj tuaj yeem teem caij nruab nrab ntawm winding thiab clamp kom nqus cov hlau nplaum sib nqus ntawm lub clamp thiab lub tank. Lub strapping uas tsis yog-ferrous hlau yog faus nyob rau hauv qhov chaw uas lub magnetic teb muaj zog tshaj, uas yuav txo tau cov stray poob ntawm high-tam sim no bushing thiab hlau ib feem. (3) Rau cov transformers loj, sib nqus shunt yog nqa tawm raws li lub built-in silicon steel phaj nrog siab permeability nyob rau hauv lub thawv phab ntsa, thiab nqus ntawm lub thawv phab ntsa magnetic flux yog hu ua magnetic shielding; Los yog siv cov hlau tsis-ferrous nrog cov khoom siv hluav taws xob siab thiab txhuas ua hauv ob sab hauv los tsim cov tshuaj tiv thaiv tam sim no thiab txo cov hlau nplaum sib nqus thiab qhov hnyav tiv thaiv rau hauv lub tank phab ntsa. Feem ntau, sib nqus shielding yog zoo dua li hluav taws xob tiv thaiv, uas tuaj yeem txo qhov poob ntawm lub tank.
(4) Kev suav ntau ntawm cov roj ntws voj, kev siv cov baffles, kev sib cais tsim nyog ntawm cov cua txias, kev ua kom txias, kev ua kom zoo ntawm cov roj tank, chip radiator, txias, lub zog txuag kiv cua, roj twj tso kua mis, kom tau txais kev lag luam zoo tshaj plaws- txuag cua txias tsawg dua stray poob.
(5) Cov iav fiber reinforced yas kiv cua, kev ua haujlwm siab, tsis tshua muaj suab nrov. Hloov lub qub txias txias nrog lub txias txias tshiab thiab siv lub tshuab hluav taws xob sib txawv ntawm lub tshuab hluav taws xob tuaj yeem txo qhov poob ntawm cov cuab yeej pabcuam.
