Lub ntsiab lus ntawm lub cub tawg transformer

I. Lub cub tawg transformer yog dab tsi?

 

A rauv transformeryog ib qho khoom siv hluav taws xob uas tswj hwm qhov hluav taws xob hloov pauv tam sim no (AC), txawm tias nws nce lossis nqis, kom phim cov kev ua haujlwm ntawm lub cub tawg - raws li cov tshuab. Hauv kev lag luam hlau - smelting daim ntaub ntawv (xws li, rau steel, tshwj xeeb steel, dawb corundum, electrolytic aluminium), nws ua hauj lwm raws li ib tug tshwj xeeb lub hwj chim transformer muaj peev xwm withstanding loj - tam sim no loads thiab rov qab mechanical thiab thermal stresses los ntawm hluav taws xob arcs, feem ntau featuring ib tug thawj voltage tsis tshaj 72.5 kV thiab roduts, loj peev xwm. electrodes. Hauv tsev neeg thiab HVAC cov ntsiab lus, nws hloov siab - hluav taws xob hluav taws xob mus rau qis dua, muaj kev nyab xeeb rau cov khoom siv hluav taws xob (xws li ntsuas kub thiab hluav taws xob), ua kom muaj kev ua haujlwm tau zoo los ntawm electromagnetic induction rau lub zog hloov pauv, nrog rau nws qhov chaw teeb tsa xws li hauv lub cub tawg mus rau sab nraum zoov AC units nyob ntawm qhov tsim tshwj xeeb.

 

 

 

Lub cub tawg transformer ua raws li "lub plawv" ntawm lub cub tawg. Nws lub luag haujlwm tseem ceeb yog los hloov daim phiaj hluav taws xob siab thiab tsis tshua muaj tam sim no mus rau qhov tsis tshua muaj hluav taws xob thiab qhov siab tam sim no xav tau los ntawm lub cub tawg, xa cov hluav taws xob zoo thiab muaj zog rau cov txheej txheem xws li melting, cua sov, thiab refining. Nyob ntawm seb hom hluav taws xob tshwj xeeb, kev khiav hauj lwm hauv paus ntsiab lus, thiab cov txheej txheem yuav tsum tau ua, cov tshuab hluav taws xob hloov hluav taws xob sib txawv hauv lawv cov qauv tsim thiab thev naus laus zis. Cov hauv qab no yog qee yam ntawm cov khoom siv dav siv hauv metallurgical, tshuaj, thiab cov khoom lag luam.

Hauv cov ntsiab lus,ntau hom rauv transformers yog cov khoom ntawm lawv cov txheej txheem kev lag luam. Lawv tshwj xeeb hauv lawv cov qauv tsim (voltage, tam sim no, impedance), txoj kev tswj hluav taws xob, kev muaj peev xwm tshaj, thiab kev ua haujlwm. Kev nkag siab zoo thiab xaiv lub tshuab hluav taws xob tsim nyog yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb ntawm kev tsim khoom, txhim kho cov khoom zoo, thiab txo qis kev siv hluav taws xob.

 

 

Vim qhov tsis tshua muaj hluav taws xob tsawg, tam sim no loj, thiab qhov dav dav ntawm cov hluav taws xob hluav taws xob ntawm cov hluav taws xob hloov hluav taws xob (yuav tsum tau hloov kho los ntawm tus nqi siab tshaj plaws mus rau 25% ~ 50% ntawm tus nqi siab tshaj), lawv txoj kev tswj hluav taws xob muaj qhov sib txawv ntawm cov hluav taws xob transformers. Cov txheej txheem tseem ceeb yog raws li nram no:

1. Kev tswj tsis tau Flux Voltage

Nws lub hauv paus ntsiab lus yog los teeb tsa cov kev cai voltage kais lossis cais cov kev cai voltage windings ntawm thawj winding. Thaum thawj qhov hluav taws xob tsis tu ncua, qhov hluav taws xob ib tig tau hloov pauv los ntawm kev hloov cov lej ntawm cov thawj winding txuas nrog lub voj voog, yog li hloov qhov hloov pauv thib ob winding voltage. Cov tub ntxhais flux hloov thaum lub sij hawm tswj voltage.

• Nta: Cov qauv yooj yim, thiab cov windings tuaj yeem npaj concentrically los yog nyob rau hauv ib tug staggered yam. Thaum tus naj npawb ntawm cov lem ntawm thawj winding kais yog sib npaug, qhov thib ob voltage kauj ruam sib txawv tsis sib npaug; Yog tias qhov sib npaug ntawm cov kauj ruam sib txawv yog xav tau, yuav tsum tau siv cov txheej txheem winding. Thaum qhov hluav taws xob theem nrab nyob rau ntawm nws qhov siab tshaj plaws, qhov tsis ua haujlwm ntawm lub hauv paus winding yog nquag mus rau qhov hluav taws xob oscillation, uas tsis zoo rau rwb thaiv tsev. Thaum qhov hluav taws xob theem nrab yog qhov tsawg kawg nkaus, cov tub ntxhais sib nqus qhov sib nqus yog qhov tsawg, uas yog uneconomical rau cov khoom uas muaj ntau yam kev cai voltage. Qhov xwm txheej tuaj yeem txhim kho los ntawm kev siv D-Y hloov pauv.
• Daim Ntawv Thov Scope: me me thiab nruab nrab- qhov cub hluav taws xob hloov hluav taws xob nrog thawj qhov hluav taws xob ntawm 35kV lossis qis dua thiab qhov ntsuas hluav taws xob tsawg dua 20%.

 

2. Series Transformer Voltage Regulation

Ib tug series transformer yog ntxiv nyob rau hauv lub tank ntawm lub ntsiab transformer. Qhov qis-voltage windings ntawm lub ntsiab transformer thiab series transformer yog txuas nrog series. Qhov hluav taws xob ntawm qhov siab -voltage winding ntawm series transformer yog hloov los ntawm cov kev cai sib cais voltage winding ntawm lub ntsiab transformer, yog li hloov lub composite voltage ntawm lub low-voltage windings ntawm lub ntsiab transformer thiab series transformer.

• Qhov zoo: Dav voltage tswj ntau yam, thiab theem nrab voltage theem sib txawv yog sib npaug thaum tus naj npawb ntawm kais lem yog sib npaug. Thawj qhov hluav taws xob tsis txwv los ntawm qib rwb thaiv tsev ntawm tus kais dej - hloov pauv thiab tuaj yeem tso ncaj qha los ntawm 63 ~ 220kV, tshem tawm qhov xav tau rau qhov nruab nrab substation. Lub peev xwm ntawm qhov kev tswj hluav taws xob winding yog me dua li qhov tso zis muaj peev xwm ntawm lub tshuab hluav taws xob hloov hluav taws xob, ua kom yooj yim xaiv tus kais dej - hloov pauv nrog qhov muaj kev nyab xeeb siab. Cov kev cai voltage winding tuaj yeem txuas nrog lub capacitor them nyiaj los txhim kho lub zog. Lub ntsiab transformer ua hauj lwm nyob rau hauv tas li flux, ua tus tsim ntawm cov khoom uas muaj peev xwm loj thiab dav voltage regulation ntau economical.
• Qhov tsis zoo: Cov qauv tsis yooj yim, lub sijhawm- siv los tsim, thiab tsis yooj yim rau kev tswj xyuas. Thaum nyob rau ntawm qhov tsis zoo kais dej, lub load poob yog loj, thiab lub load poob ntawm qhov tsawg kawg nkaus theem nrab voltage yog me ntsis txawv ntawm qhov siab tshaj plaws theem nrab voltage, thiab lub impedance voltage increment yog loj.
• Daim Ntawv Thov Scope: Rauv transformers nrog lub peev xwm ntawm 10000kVA los yog ntau tshaj, los yog rauv transformers nrog ib tug high voltage (63kV los yog ntau tshaj).

 

3. Autotransformer Voltage Regulation

Nws muaj ib qho autotransformer thiab lub cub tawg transformer nrog ib qho kev hloov pauv ruaj khov, uas tuaj yeem ntsia tau rau hauv tib lub tank lossis sib cais, nrog rau qhov siab tshaj plaws rwb thaiv tsev ntawm 35kV.

• Nta: Qhov nruab nrab nruab nrab ntawm lub autotransformer yuav tsum muaj kev ntseeg siab hauv av (thaum qhov voltage theem ntawm thawj thiab theem nrab sib txawv); nws tuaj yeem ua tsis tau zoo thaum cov qib voltage yog tib yam. Thaum tus naj npawb ntawm kais tig sib npaug, qhov qis -voltage voltage kauj ruam sib txawv ntawm lub cub tawg transformer yog sib npaug. Qhov kev hloov pauv impedance yog me me thaum lub sij hawm tswj cov txheej txheem voltage. Rau ib qho - cov khoom lag luam, ib qho peb - lub cev ntaj ntsug nrog qhov tsis sib xws ntawm tus ntoo khaub lig- ntu tuaj yeem siv tau, nrog rau ib ceg ceg rau lub autotransformer voltage regulation winding, ib ceg ceg rau lub cub tawg transformer winding, thiab ib ceg ceg raws li ib tug yoke, uas ua rau ib tug ntau economical tsim. Loj- cov khoom muaj peev xwm yuav tsum tau txais cov qauv sib txawv, thiab cov tsheb npav sib txuas ntawm autotransformer thiab lub cub tawg transformer yuav tsum tau luv luv thiab kaw kom tsis txhob muaj kev puas tsuaj rau lub autotransformer vim qhov luv luv heev - Circuit Court tam sim no thaum muaj luv luv Circuit Court.

 

 

 

 

Rauv transformers muaj siab-voltage, voltage-regulating, thiab low-voltage windings, nrog rau lawv cov kev npaj raws li cov ntsiab lus tseem ceeb no:

 

 

 

 

Vim yog qhov yuav tsum tau ua kom haum rau kev ua haujlwm ntawm cov hluav taws xob cua sov xws li qhov kub thiab txias, tam sim no loj, thiab kev tswj xyuas qhov hluav taws xob tsis tu ncua, lub tshuab hluav taws xob hluav taws xob tau tsom qhov sib txawv ntawm cov qauv tseem ceeb ntawm cov khoom siv hluav taws xob zoo tib yam. Hauv qab no yog cov lus piav qhia ntxaws txog qhov sib txawv ntawm qhov tseem ceeb.

1. Conjugate Core

• Cov yam ntxwv ntawm tus qauv: Lub reactor core thiabtransformer tub ntxhaissib koom ib tug yoke, sib sau ua ke "conjugate" tsim.
• Qhov sib txawv: Cov tub ntxhais transformer thiab reactor core ntawm lub zog zoo tib yam transformers yog feem ntau ywj siab cov qauv tsis muaj ib tug yoke.
• Lub hom phiaj tsim: Ua kom lub ntim tag nrho los ntawm kev sib koom yoke, txo qhov sib nqus sib nqus, thiab txhim kho kev sib txuas ua haujlwm ntawm cov tub ntxhais sib nqus hluav taws xob kom hloov mus rau qhov kev xav tau ntawm cov khoom siv hluav taws xob hluav taws xob.

 

2. Cov cua daj cua dub

Lub windings ntawm cub tawg transformers txais ib tug tshwj xeeb staggered tsim, uas yog txawv los ntawm cov pa winding txoj kev ntawmfais fab mov transformers. Lawv feem ntau muab faib ua ob hom:

• Direct-Cov kab mob staggered windings: Cov neeg ua haujlwm raug teeb tsa hloov pauv ntawm cov pitches tshwj xeeb thaum winding ncaj qha, tsis ua raws li cov kev sib txuas sib txuas winding logic ntawm lub hwj chim transformers.
• Assembled staggered windings: Windings yog prefabricated nyob rau hauv seem thiab ces assembled nyob rau hauv poob lawm, nrog rau winding kev taw qhia thiab txoj hauj lwm ntawm txhua seem ntawm windings faib alternately.
• Cov txiaj ntsig tseem ceeb: Txhim kho qhov luv luv -circuit resistance ntawm windings, txhim kho kev faib hluav taws xob thiab sib nqus teb nyob rau hauv cov windings, txo qis hauv zos poob, thiab hloov mus rau qhov inrush tam sim no thaum lub tshuab hluav taws xob pib.

 

3. Concentric Windings (Special Design for Voltage Regulating thiab Low-Voltage Windings)

Lub concentric windings ntawm lub cub tawg transformers muaj qhov sib txawv ntawm lub hwj chim transformers nyob rau hauv cov qauv qauv ntawm voltage regulating windings thiab low-voltage windings:

Voltage Regulating Windings

• Winding hom: suav nrog plaub qhov tshwj xeeb tsim: hom txuas ntxiv, hom interleaved, hom kauv, thiab hom cylindrical, nrog rau ntau lub hom phiaj ntawm daim ntawv thov scenarios.
• Qhov sib txawv: Qhov voltage tswj windings ntawm lub zog hloov hluav taws xob yog hom txuas ntxiv thiab ntawm -load voltage regulation mob siab rau cov qauv. Lub interleaved thiab kauv voltage regulating windings ntawm lub cub tawg transformers tsom ntau rau withstanding impulse voltage, thaum lub cylindrical hom optimizes magnetic teb stability thaum lub sij hawm voltage tswj.
• Qhov yuav tsum tau ua kom haum: Ua tau raws li qhov xav tau ntawm qhov dav -ntau thiab nquag tswj qhov hluav taws xob thaum lub tshuab hluav taws xob smelting, thiab txhim kho cov rwb thaiv tsev kev ntseeg siab ntawm cov windings.

Tsawg-Voltage Windings

(1) Cov yam ntxwv tshwj xeeb:

• Muab ob npaug rau-disc qis-voltage windings: Qhov mob nyob rau hauv ob npaug-disc ntu, nrog thaj tsam loj dua cov cua kub dissipation piv rau cov pa qis-voltage windings ntawm fais fab transformers.
• "Daim duab-8" zoo li tus low-voltage windings: Windings tau muab faib ua "daim duab-8" zoo li, zoo txo ​​qhov sib nqus flux thiab hloov mus rau qhov loj tam sim no.
• Phaj-hom qis-voltage windings: Txais ib lub tiaj tus- phaj qauv tsim, txo cov tawv nqaij ua haujlwm raws li tam sim no loj, thiab txhim kho tam sim no - nqa peev xwm.

(2) Cov tub ntxhais sib txawv: Qhov qis-voltage windings ntawm fais fab transformers feem ntau yog cylindrical thiab kauv hom. Qhov qis-voltage windings ntawm lub tshuab hluav taws xob hluav taws xob yog txhua yam tsim los hloov kho rau cov kev ua haujlwm loj tam sim no, tsom ntau dua ntawm kev poob qis thiab kev ua haujlwm siab kub dissipation.

 

4. Tsawg-Voltage Lead Wires

• Cov yam ntxwv ntawm tus qauv: Tsawg-voltage lead xov hlau siv tus ntoo khaub lig loj -section conductors, thiab txoj kev layout yog optimized rau luv luv -nyob deb, qis-impedance tsim. Ib tug shielding qauv yog siv nyob rau hauv ib co scenarios.
• Qhov txawv ntawm qhov sib txawv: Qhov qis-voltage lead xov hlau ntawm lub hwj chim transformers tsom ntau dua rau kev tiv thaiv rwb thaiv tsev thiab cov xaim zoo. Qhov qis -voltage lead wires ntawm lub cub tawg transformers feem ntau yog optimized nyob ib ncig ntawm "loj tam sim no kis tau tus mob" nrog ib tug loj conductor cross-section thiab qis impedance los txo cov hlau lead poob.

 

5. Tsawg-Voltage Outlet Terminals

(1) Cov hom tshwj xeeb:

• Copper phaj terminals: Ua tiav los ntawm ib qho ntawm cov phaj tooj liab tuab, nrog rau thaj tsam loj, haum rau nruab nrab thiab loj muaj peev xwm kis tau tus mob tam sim no.
• Dej-cov kav dej txias txias: Siv cov raj tooj liab hollow ua cov cab kuj, ua ke nrog cov dej- cua txias, uas tuaj yeem tshem tawm cov cua kub sai sai los ntawm cov dej ntws loj.

(2) Qhov sib txawv: Qhov qis- qhov hluav taws xob qhov hluav taws xob ntawm cov hluav taws xob hloov hluav taws xob feem ntau yog cov khoom siv tooj liab lossis ntsia liaj qhov rooj - hom terminals yam tsis muaj dej tshwj xeeb -tsim txias. Lub davhlau ya nyob twg cov qauv ntawm lub tshuab hluav taws xob hluav taws xob tau tsim tshwj xeeb los tiv thaiv qhov tam sim no loj thiab siab - qhov kub thiab txias ua haujlwm, ua kom muaj kev ruaj ntseg tam sim no thiab kev pabcuam lub neej.