Transformer Windings thiab Transformer rwb thaiv tsev

Transformer windings yog cov khoom siv hluav taws xob ntawm lub tshuab hluav taws xob thiab yog qhov tseem ceeb rau kev hloov hluav taws xob hluav taws xob. Lawv yog ua los ntawm cov xov hlau insulated (feem ntau yog tooj liab lossis txhuas) qhov txhab raws li cov qauv tshwj xeeb thiab xa lub zog los ntawm txoj cai ntawm electromagnetic induction.

1. Lub luag haujlwm tseem ceeb

• Tsim ib qho chaw sib nqus: Thaum lub hauv paus winding yog muab nrog alternating tam sim no, ib tug alternating magnetic teb yog tsim.
• Inducing electromotive quab yuam: Qhov kev sib nqus sib nqus no dhau los ntawm kev sib tw thib ob, ua rau lub zog hluav taws xob (voltage) hauv qhov thib ob winding.
• Hloov qhov hluav taws xob: Los ntawm kev kho qhov hloov pauv ntawm thawj thiab theem nrab windings, qhov voltage tuaj yeem nce lossis nqis.

2. Hom Windings ( cais raws li qib voltage thiab qhov chaw txheeb ze)

• High-voltage winding: Winding uas tiv taus hluav taws xob ntau dua. Feem ntau muaj cov xaim me me hla- ntu (vim qhov tam sim no me me), tab sis yuav tsum muaj kev rwb thaiv tsev siab.
• Tsawg-voltage winding: Winding uas tiv taus qhov hluav taws xob qis dua. Feem ntau muaj cov kab hlau loj dua -section (vim qhov tam sim no kuj loj), thiab muaj qhov yuav tsum tau rwb thaiv tsev qis dua.

Structurally, raws li lawv txoj kev npaj ntawm lub hauv paus, lawv feem ntau muab faib ua ob hom:

(1) Concentric winding:

• Structure: High-voltage thiab low-voltage windings raug mob rau hauv cov duab cylindrical ntawm txawv diameters thiab concentrically muab tso rau ntawm lub hauv paus caj dab.
• Kev sib koom ua ke: txhawm rau pab txhawb kev rwb thaiv tsev, qhov qis -voltage winding feem ntau yog muab tso rau sab hauv (ze rau lub hauv paus) thiab siab -voltage winding rau sab nraud. Qhov no yog vim qhov rwb thaiv tsev ntawm qhov qis -voltage winding thiab cov tub ntxhais (hauv av) yooj yim dua los daws.
• Daim ntawv thov: Feem ntau cov fais fab transformers (tshwj xeeb yog cov uas muaj peev xwm loj) siv cov qauv no. Cov txheej txheem tsim khoom yog qhov yooj yim thiab cov qauv tsim muaj zog.

(2) Interleaved winding:

• Structure: Ob qhov siab -voltage thiab low-voltage windings tau ua rau hauv daim duab disc thiab sib txuas ua ke raws qhov siab ntawm cov tub ntxhais limb.
• Qhov zoo: Txo cov dej ntws tawm ntawm cov cua ntsawj ntshab, lub zog ua haujlwm siab, thiab muaj zog luv luv - Circuit Court tsis kam.
• Daim ntawv thov: Feem ntau yog siv rau cov transformers tshwj xeeb, xws li hluav taws xob rau hluav taws xob transformers thiab vuam transformers, uas yuav tsum tau tiv thaiv loj electromagnetic rog.

3. Cov ntsiab lus tseem ceeb rau Windings
Kev ua haujlwm hluav taws xob: Yuav tsum tau ua haujlwm ntev - lub sijhawm ua haujlwm voltage thiab dhau qhov hluav taws xob dhau (xws li xob laim tawm tsam).
Mechanical kev ua tau zoo: Cov qauv yuav tsum muaj zog txaus los tiv thaiv cov hluav taws xob hluav taws xob loj uas tsim los ntawm lub sijhawm luv luv yam tsis muaj deformation.
Kev ua haujlwm kub: Yuav tsum muaj cov cua kub zoo kom ntseeg tau tias qhov kub thiab txias nyob rau hauv ntev - lub sij hawm thauj khoom tsis pub dhau qhov txwv.
Txheej txheem kev ua tau zoo: Cov txheej txheem winding yuav tsum yooj yim, kev lag luam, thiab txhim khu kev qha.

Nws yog cov khoom siv uas cais qhov sib txawv ntawm qhov sib txawv ntawm cov winding ntawm ib leeg thiab cais cov winding los ntawm qhov chaw hauv av (xws li cov tub ntxhais thiab cov roj tank). Nws yog ib feem tsis yog - Circuit Court ntawm lub transformer tab sis txiav txim siab txog kev nyab xeeb thiab lub neej ntawm lub transformer.
1. Lub luag haujlwm tseem ceeb

• Muaj peev xwm cais tawm: Muaj kev ntseeg siab cais cov khoom siv hluav taws xob nrog cov peev txheej sib txawv (xws li cov hluav taws xob siab thiab tsis tshua muaj hluav taws xob, thiab winding los ntawm cov tub ntxhais) los tiv thaiv luv luv Circuit Court.
• Thaum tshav kub kub Dissipation Channel: Insulating cov ntaub ntawv (xws li transformer roj) feem ntau ua hauj lwm raws li txias xov xwm, hloov lub tshav kub generated los ntawm winding thiab core.
• Mechanical Support: Insulating cov ntaub ntawv (xws li insulating board) kuj pab kho thiab txhawb cov windings.

2. Kev faib hluav taws xob rwb thaiv tsev (los ntawm qhov chaw thiab ua haujlwm)
Transformer rwb thaiv tsev system feem ntau muab faib ua ob pawg loj:

• Internal rwb thaiv tsev: Nyob rau hauv lub transformer roj tank, tsis nyob rau hauv ncaj qha kev sib cuag nrog cov huab cua sab nraud.
• Lub ntsiab rwb thaiv tsev: Hais txog cov rwb thaiv tsev ntawm windings thiab grounded qhov chaw (xws li cov tub ntxhais thiab roj tank), thiab nruab nrab ntawm windings ntawm txawv voltage theem (xws li ntawm high-voltage thiab low-voltage windings). Qhov no yog lub hauv paus ntawm lub rwb thaiv tsev transformer thiab txiav txim siab theem voltage ntawm transformer.
• Longitudinal Rwb thaiv tsev: Hais txog rwb thaiv tsev nyob rau hauv tib lub winding, xws li rwb thaiv tsev ntawm lem (tig- mus -tig rwb thaiv tsev), nruab nrab winding txheej (txheej- rau- txheej rwb thaiv tsev), thiab nruab nrab ntawm winding seem (section- mus rau -section rwb thaiv tsev).
• Sab nrauv Rwb thaiv tsev: Hais txog cov rwb thaiv tsev qhov chaw raug huab cua sab nraum lub transformer, feem ntau yog cov rwb thaiv tsev nyob rau sab saum toj ntawm bushings (sab nraum lub tank roj). Nws lub zog rwb thaiv tsev feem ntau yog nyob ntawm huab cua puag ncig thiab kev nkag mus deb.

3. Cov ntaub ntawv tseem ceeb insulating
Lub rwb thaiv tsev ntawm transformers (tshwj xeeb tshaj yog roj-immersed transformers) yog ib qho kev sib xyaw ua ke. Cov ntaub ntawv uas muaj xws li:
(1) Cov ntaub ntawv ua kua Insulating:

• Mineral Transformer Roj: Feem ntau siv. Cov haujlwm muaj xws li: rwb thaiv tsev (ntau dua dielectric zog tshaj huab cua), cua sov dissipation (tshem tawm cua sov los ntawm convection), kev tiv thaiv (kua pa oxygen, ncua kev laus cov khoom).
• Synthetic los yog Natural Ester Insulating Oil: Xws li cov roj silicone lossis cov roj zaub insulating, feem ntau siv rau hauv cov chaw uas muaj hluav taws kub siab.

(2) Cov khoom siv insulating:

• Insulating Paper, Insulating Board: Siv rau tig rwb thaiv tsev, txheej rwb thaiv tsev, sib cais ntawm windings, thiab rwb thaiv tsev thooj voos kheej kheej. Cov roj-cov ntaub ntawv rwb thaiv tsev yog cov khoom siv hluav taws xob zoo tshaj plaws thiab txhim khu kev qha.
• Epoxy Resin: Siv dav hauv qhuav- hom transformers, tsim cov khoom siv hluav taws xob tag nrho los ntawm kev casting.
• NOMEX® Daim Ntawv: Ib daim ntawv siab - ua haujlwm muaj ntxhiab polyamide ntawv nrog cov thermal ua haujlwm siab, feem ntau siv rau hauv qhuav- hom lossis cov transformers tshwj xeeb.

Transformer windings yog 'circuit channels' rau kev ua tiav kev hloov hluav taws xob hluav taws xob, thaum lub tshuab hluav taws xob rwb thaiv tsev yog 'kev tiv thaiv kab mob' uas muaj kev nyab xeeb cais cov khoom sib txawv nrog cov peev txheej sib txawv; rwb thaiv tsev ua raws li 'cov cuab yeej cuab tam' rau cov windings, muab kev nyab xeeb rau lawv cov kev ua haujlwm ib txwm muaj thiab tiv thaiv luv luv - cov xwm txheej hauv Circuit Court. Ob qho tib si sib xyaw ua ke thiab ua ke txiav txim siab qhov hloov pauv qhov kev ua tau zoo, qib voltage, thiab kev ntseeg tau ntawm kev ua haujlwm.