Distribution Transformer yog dab tsi

Distribution Transformer txhais

Distribution transformer yog hais txog cov khoom siv hluav taws xob zoo li qub uas siv rau hauv kev faib khoom los hloov AC voltage thiab tam sim no raws li txoj cai ntawm electromagnetic induction thiab xa AC zog. Suav transformer khoom feem ntau yuav muab faib ua ultra-high voltage (750KV thiab siab dua), ultra-high voltage (500KV) transformers, 220-110KV transformers, thiab 35KV thiab hauv qab transformers raws li voltage theem. Distribution transformers feem ntau yog xa mus rau lub hwj chim transformers ua hauj lwm nyob rau hauv lub tis network nrog ib tug voltage theem ntawm 10-35KV thiab ib tug muaj peev xwm ntawm 6300KVA los yog qis dua uas ncaj qha muab hwj chim rau cov neeg siv kawg.

Hom Distribution Transformer

Kev faib tawm ntawm cov khoom siv feem ntau siv transformers tuaj yeem ua tiav raws li hauv qab no:

(1) Raws li tus naj npawb ntawm theem:

1) Ib-theem faib transformers: siv rau ib-theem loads thiab peb-theem faib transformer pawg.

2) Peb-theem faib transformer: siv rau kev nce thiab txo qis voltage hauv peb-theem systems.

(2) Raws li kev ua kom txias:

1) Qhuav hom faib transformers: Lawv cia siab rau cov cua convection kom txias thiab feem ntau yog siv rau me me muaj peev xwm faib transformers xws li teeb pom kev zoo hauv zos thiab hluav taws xob circuits. 2) Roj immersed tis transformers: cia siab rau cov roj raws li qhov nruab nrab cua txias, xws li roj immersed nws tus kheej txias, roj immersed cua txias, roj immersed dej txias, yuam roj ncig, thiab lwm yam.

(3) Classified los ntawm lub hom phiaj:

1) Fais fab faib transformer: siv rau voltage nce thiab poob hauv kev sib kis thiab faib tshuab.

2) Cov cuab yeej faib khoom hloov pauv: xws li Voltage transformer, tam sim no transformer, ntsuas ntsuas thiab relay tiv thaiv device.sp;

3) Test tis transformer: muaj peev xwm tsim hluav taws xob siab thiab ua qhov ntsuas hluav taws xob siab ntawm cov khoom siv hluav taws xob.

4) Tshwj xeeb faib transformers: xws li cub tawg transformers, rectifier faib transformers, hloov pauv hloov pauv, thiab lwm yam.

(4) Muab faib los ntawm daim ntawv winding:

1) Ob chav winding faib transformer: siv los txuas ob theem voltage hauv lub zog hluav taws xob.

2) Peb winding tis transformer: feem ntau siv nyob rau hauv lub hwj chim system regional substations, txuas peb voltage theem.

3) Autotransformer: siv los txuas cov tshuab hluav taws xob nrog cov hluav taws xob sib txawv. Nws kuj tseem siv tau los ua ib qho kev hloov pauv hloov pauv mus ib ntus lossis nce qib.

(5) Raws li daim ntawv ntawm cov tub ntxhais hlau:

1) Core hom faib transformer: siv rau high-voltage fais fab tuag transformers. 2) Plhaub hom faib transformer: siv rau tshwj xeeb tis transformers nrog siab tam sim no, xws li cub tawg transformers thiab vuam tis transformers; Los yog lub zog faib hluav taws xob hloov pauv rau cov cuab yeej hluav taws xob, TV, xov tooj cua, thiab lwm yam.

Parts ntawm Distribution Transformer

Roj immersed faib transformers yuav muab faib ua lub ntsiab lub cev, roj cia txee, rwb thaiv tsev lub tes tsho, kais changer, tiv thaiv ntaus ntawv, thiab lwm yam raws li lawv cov qauv.

1. Lub cev

Lub cev muaj peb qhov chaw: cov tub ntxhais hlau, winding, thiab rwb thaiv tsev roj. Lub winding yog lub voj voog ntawm lub transformer, thiab cov tub ntxhais hlau yog qhov sib nqus ntawm lub transformer. Qhov ob yog lub hauv paus ntawm lub transformer, uas yog ib feem ntawm electromagnetic.

1.1 Hlau tub ntxhais

Cov tub ntxhais hlau yog lub ntsiab sib nqus Circuit Court nyob rau hauv lub transformer. Feem ntau yog tsim los ntawm kub-kuav los yog txias-dov silicon steel los xij nrog cov ntsiab lus silicon siab, thickness ntawm 0.35 los yog 0.5mm, thiab nto coated nrog rwb thaiv tsev xim, cov tub ntxhais hlau muab faib ua ob. qhov chaw: ib tug hlau core kem thiab ib tug hlau yoke. Cov tub ntxhais hlau ncej yog them nrog ib tug winding, thiab cov hlau yoke yog siv los kaw lub magnetic Circuit Court. Muaj ob hom qauv ntawm cov tub ntxhais hlau: core hom thiab plhaub hom.

1. 2 Cuab cua

Lub winding yog ib feem ntawm lub transformer, feem ntau yog ua los ntawm winding insulated ca tooj liab hlau los yog round tooj liab hlau ntawm ib tug winding pwm. Lub winding yog ntsia rau ntawm lub transformer core kem, lub low-voltage winding yog ntsia rau ntawm lub puab txheej, lub high-voltage winding yog ntsia rau txheej txheej ntawm lub low-voltage winding, thiab lub tes tsho ua los ntawm cov ntaub ntawv rwb thaiv tsev yog siv nyob rau hauv nruab nrab. qhov qis-voltage winding thiab cov tub ntxhais hlau, nrog rau nruab nrab ntawm cov high-voltage winding thiab low-voltage winding, kom yooj yim rwb thaiv tsev.

1.3 rwb thaiv tsev roj

Qhov sib xyaw ntawm cov roj transformer yog qhov nyuaj heev, uas yog tsim los ntawm Cycloalkane, alkanes thiab Aromatic hydrocarbon. Nyob rau hauv kev faib khoom transformers, transformer roj plays ob lub luag hauj lwm: ib qho yog rwb thaiv tsev ntawm transformer windings, windings thiab hlau cores, thiab roj tso tsheb hlau luam. Qhov thib ob yog tias cov roj transformer generates convection tom qab rhuab, uas plays lub tshav kub dissipation lub luag hauj lwm ntawm transformer core thiab winding. Cov roj transformer uas nquag siv muaj peb yam tshwj xeeb: No. 10, No. 25, thiab No. 45. Nws daim ntawv lo sawv cev rau qhov kub thiab txias uas cov roj pib solidify hauv qab xoom. Piv txwv li, "No. 25" roj qhia tias cov roj no pib ua kom khov ntawm -25 degree . Cov roj specifications yuav tsum tau xaiv raws li nyob rau hauv lub zos huab cua tej yam kev mob.

1.2 Roj cia tank

Cov roj conservator yog ntsia rau saum lub hau ntawm lub tank roj. Lub ntim ntawm cov roj cia tank yog kwv yees li 10 feem pua ​​​​ntawm cov ntim ntawm cov roj tank. Muaj cov kav dej txuas ntawm cov roj cia tank thiab cov roj tank. Thaum lub ntim ntawm lub transformer expands los yog cog lus nrog cov kub hloov ntawm cov roj, cov roj cia tank plays lub luag hauj lwm nyob rau hauv khaws cia thiab replenishing roj, xyuas kom meej tias cov hlau core thiab winding yog immersed nyob rau hauv cov roj; Nyob rau tib lub sij hawm, vim yog lub installation ntawm ib tug roj cia tank, qhov kev sib cuag nto ntawm cov roj thiab huab cua yog txo, txo tus nqi ntawm cov roj degradation.

Muaj cov roj taw qhia rau sab ntawm cov roj conservator, thiab muaj cov roj theem txheem kab ntawm ib sab ntawm lub iav raj rau roj kub ntawm -30 degree, ntxiv rau 20 degree, thiab ntxiv rau 40 degree, qhia cov roj qib uas transformers uas tsis tau muab tso rau hauv kev ua haujlwm yuav tsum ncav cuag; Tus qauv kab feem ntau qhia txog seb cov roj theem ntawm lub transformer puas txaus thaum ua haujlwm ntawm qhov kub sib txawv.

Ua pa qhov yog ntsia rau ntawm cov roj cia tank los txuas rau qhov chaw sab saud ntawm lub tank nrog cov cua. Thaum lub sij hawm thermal expansion ntawm transformer roj, cov huab cua nyob rau sab sauv ntawm cov roj conservator tuaj yeem nkag mus thiab tawm los ntawm lub qhov ua pa, thiab cov roj theem tuaj yeem nce lossis poob los tiv thaiv cov roj tank los ntawm deformation lossis puas tsuaj.

1.3 Insulating Bushing

Nws yog cov khoom siv hluav taws xob tseem ceeb sab nraud ntawm lub thawv hloov pauv, thiab feem ntau ntawm cov hluav taws xob rwb thaiv tsev lub tes tsho siv porcelain rwb thaiv tsev lub tes tsho. Lub transformer siv lub tes tsho siab thiab tsis tshua muaj hluav taws xob rwb thaiv tsev los coj cov kev coj ntawm lub siab thiab tsis tshua muaj hluav taws xob windings ntawm transformer los ntawm sab hauv cov roj tank mus rau sab nraum cov roj tank, ua rau lub transformer winding insulated los ntawm hauv av (plhaub thiab core), thiab yog kuj yog lub ntsiab tivthaiv txuas cov taag coj mus rau sab nraud Circuit Court. Lub high-voltage porcelain bushing yog siab siab, thaum lub low-voltage porcelain bushing yog luv luv.

1.4 Coj mus rhaub Changer

Cov cuab yeej hloov cov kais dej ntawm high-voltage winding ntawm transformer thiab kho qhov kais dej tuaj yeem nce lossis txo tus naj npawb ntawm cov lem hauv thawj winding los hloov qhov voltage piv thiab kho qhov tso zis voltage. Tus txheej txheem ntawm manually hloov txoj hauj lwm ntawm tus kais changer tom qab lub transformer raug tshem tawm los ntawm lub lag luam thiab disconnected ntawm lub hwj chim daim phiaj, thiab kho cov zis voltage yog hu ua tsis muaj-load voltage regulation.

1.5 Cov khoom siv tiv thaiv

1.5.1 Gas relay

Cov roj relay tau nruab rau hauv nruab nrab ntawm cov yeeb nkab sib txuas ntawm cov roj transformer tank thiab cov roj cia tank, thiab txuas nrog cov tswj Circuit Court los tsim cov cuab yeej tiv thaiv roj. Kev sib cuag sab saud ntawm cov roj relay tsim ib lub voj voog cais nrog lub teeb roj teeb, thaum qhov qis qis ntawm cov roj relay txuas nrog rau sab nraud Circuit Court los tsim kev tiv thaiv roj hnyav. Cov roj hnyav ua haujlwm tawm mus rau lub zog hluav taws xob hluav taws xob hluav taws xob thiab xa cov teeb liab ua haujlwm hnyav;

1.5.2 Lub raj pov thawj tawg

Lub raj tawg-pov thawj yog cov cuab yeej tiv thaiv kev nyab xeeb rau cov transformers, ntsia rau ntawm lub hau loj ntawm lub transformer. Lub raj tawg-pov thawj txuas nrog rau cov huab cua, thiab yog tias muaj teeb meem, lub tshav kub yuav ua rau cov roj transformer vaporize, ua rau cov roj relay xa lub tswb ceeb toom lossis txiav tawm lub hwj chim los tiv thaiv cov roj tank los ntawm kev tawg. .

Distribution Transformer Application

1.Kev xa tawm thiab kev xa tawm daim ntawv thov

Transformers yog dav siv nyob rau hauv ntau yam kis tau tus mob thiab tis daim ntaub ntawv. Kev xa hluav taws xob tuaj yeem txhais tau tias yog kev txav ntawm high-voltage hluav taws xob hluav taws xob los ntawm lub chaw tsim hluav taws xob mus rau lub chaw nres tsheb, thaum kev faib khoom sib raug rau kev hloov cov teeb liab high-amplitude voltage rau hauv cov nqi hluav taws xob qis dua. Tsis tas li ntawd, cov cim hluav taws xob qis qis tau muab faib los ntawm kev faib khoom tuaj yeem siv rau kev siv hauv tsev thiab kev lag luam sib txawv. Lub zog tuaj yeem xa mus los ntawm qhov chaw nres tsheb fais fab mus rau qhov chaw los ntawm cov xov hlau thiab cables. Hauv cov ntawv thov zoo li no, cov khoom siv hluav taws xob tuaj yeem siv los tswj cov zaus thiab amplitude theem ntawm cov teeb liab ntawm qhov tseem ceeb.

2.Steel manufacturing

Cov chaw tsim khoom hlau yog ib qho piv txwv ntawm kev lag luam kev lag luam uas siv cov transformers tuaj yeem pom tau yooj yim. Cov txheej txheem kev tsim steel feem ntau suav nrog kev sib tsoo, vuam, sib sau thiab txias ntawm cov khoom siv raw. Nyob rau hauv thiaj li yuav yaj thiab weld Cheebtsam, ib tug heev tam sim no yuav tsum tau; Txawm li cas los xij, txhawm rau kom txias cov khoom, yuav tsum muaj tus nqi qis tam sim no. Yuav kom ua tiav cov kev cai nquag ntawm qhov tam sim no thoob plaws hauv tag nrho cov txheej txheem tsim khoom, cov tshuab hluav taws xob siab feem ntau yog siv. Hauv kev lag luam steel, transformers nyiam nce lossis txo qhov voltage ntawm cov ntsiab lus sib txawv hauv Circuit Court thiab pab cov neeg siv kom tau txais qhov xav tau tam sim no.

3.Coolant

Thaum lub tshuab hloov pauv siv rau hauv daim ntawv ziab cua, nws tuaj yeem siv los ua kom muaj cua txias. Cov nyhuv txias ntawm transformers tuaj yeem siv tau yooj yim hauv cov tub yees kom cov zaub mov txias thiab tshiab. Ntxiv rau qhov txias txias, transformers siv nyob rau hauv lub tub yees thiab lwm yam kev siv kuj tseem muab cov kev cai voltage tsim nyog kom tsis txhob muaj surge tam sim no thiab voltage imbalances, yog li ua kom muaj kev ruaj ntseg ntawm cov khoom. Tsis tas li ntawd, txawm tias tom qab qhov kev txiav tawm tam sim ntawm lub zog, cov tshuab hloov pauv tuaj yeem pab tswj kom txias ntawm lub tub yees rau ib lub sijhawm.

4. cua txias

Lub tshuab cua txias yog lwm qhov piv txwv ntawm kev siv lub neej txhua hnub, uas siv lub tshuab hloov pauv rau kev ua haujlwm dav dav rau tus neeg siv qhov kev xav tau zoo tshaj plaws, tso cai rau cov cua txias thiab kiv cua ua haujlwm ib txhij, thiab tswj lub zog ntws los ntawm Circuit Court raws li qhov xav tau tam sim no. Cov cua sov, qhov cua, thiab cov cua txias kuj tseem siv cov khoom siv hluav taws xob zoo sib xws los ua kom yooj yim rau lawv txoj haujlwm, txhim kho lawv txoj haujlwm, thiab ua kom lub zog siv tau zoo.

5. Kev lag luam siv

Transformers yog siv nyob rau hauv ntau yam khoom siv, xws li vuam tshuab, hluav taws xob rauv, tshuab electroplating, hluav taws xob motors, thiab lwm yam, los muab lub zog rau lawv.

1) Lub tshuab hluav taws xob hluav taws xob: Lub tshuab hluav taws xob yog cov cuab yeej siv cua sov hauv kev tsim khoom, uas yuav tsum muaj hluav taws xob siab thiab tam sim no los ua kom muaj qhov kub thiab txias. Vim li no, transformers feem ntau siv hauv kev lag luam los hloov cov hluav taws xob tsis tshua muaj hluav taws xob thiab cov khoom siv hluav taws xob siab tam sim no mus rau hauv qhov hluav taws xob siab thiab tsis tshua muaj hluav taws xob tam sim no los muab cov khoom siv hluav taws xob siab xav tau rau cov hluav taws xob hluav taws xob.

2) Lub tshuab hluav taws xob welding: Lub tshuab hluav taws xob vuam xav tau kev tsim cov khoom kub thiab lub zog siab los ntawm lub sij hawm luv luv rau cov txheej txheem welded Cheebtsam. Hauv qee lub tshuab vuam siv hluav taws xob siab, cov tshuab hloov pauv tau siv los hloov qhov hluav taws xob thiab tam sim no kom ntseeg tau tias lub zog ruaj khov thiab kev tiv thaiv overload.

3) Electroplating tshuab: Cov txheej txheem electroplating yuav tsum muaj hluav taws xob ntau, thiab nws yog ib qho tsim nyog los xyuas kom meej qhov ruaj khov ntawm cov khoom siv hluav taws xob kom ntseeg tau tias cov txheej txheem zoo. Yog li ntawd, transformers feem ntau siv nyob rau hauv kev lag luam los hloov cov tam sim no thiab high voltage hwj chim qhov chaw mus rau hauv high tam sim no thiab tsawg voltage hwj chim qhov chaw.

4) Muaj hluav taws xob tsim hluav taws xob: Hauv kev lag luam, qee hom kev lag luam tshuab hluav taws xob yuav tsum hloov lawv cov zis hluav taws xob kom hloov mus rau cov khoom siv sib txawv thiab kev siv. Transformer yog ib qho ntawm cov khoom tseem ceeb rau kev ua tiav cov zis hluav taws xob hloov pauv.

5) zaus converters: zaus converters tau dav siv nyob rau hauv cov khoom siv.

Distribution Transformer Connections

(1) Yyn0, qhov twg Y sawv cev rau qhov siab-voltage winding yog lub hnub qub txuas nrog, y sawv cev tias qhov qis-voltage winding yog hnub qub txuas nrog, n sawv cev tias cov xaim nruab nrab yog coj tawm ntawm qhov nruab nrab ntawm qhov nruab nrab. winding, thiab 0 sawv cev hais tias cov kab voltage theem ntawm high-voltage thiab low-voltage yog tib yam. Nws tuaj yeem siv los ua hluav taws xob tso tawm rau peb-theem plaub xaim lossis peb-theem tsib xaim hluav taws xob, thiab siv rau kev faib cov tshuab hluav taws xob nrog lub peev xwm me me los muab lub zog thiab teeb pom kev zoo.

(2) Dyn11: qhov twg D piv txwv tias cov high-voltage winding yog delta txuas, y sawv cev tias qhov qis-voltage winding yog lub hnub qub txuas, n sawv cev tias qhov nruab nrab ntawm qhov nruab nrab winding yog ncaj qha hauv av thiab muaj cov xaim nruab nrab tawm. , thiab 11 sawv cev rau theem sib txawv ntawm 30 degree ntawm high-voltage thiab low-voltage kab voltages. Nws yog feem ntau siv nyob rau hauv TN los yog TT system grounding low-voltage power grid hauv Suav teb.

(3) Yd11: Lub hauv paus winding yog txuas nrog lub hnub qub, thiab qhov thib ob winding txuas nrog hauv daim duab peb sab. Nws feem ntau yog siv los ua lub tshuab hluav taws xob hloov hluav taws xob rau 10kV lossis 35kV cov phiaj xwm hluav taws xob thiab ua lub chaw nres tsheb hloov pauv rau cov chaw tsim hluav taws xob. Qhov thib ob winding yog txuas rau hauv daim duab peb sab kom tshem tawm qhov thib peb harmonic voltage.

(4) YNd11: Lub hauv paus winding txuas nrog lub hnub qub, thiab cov hlau nruab nrab yog ncaj qha hauv av los ntawm qhov nruab nrab, thaum lub thib ob winding txuas nrog hauv daim duab peb sab. Lub high-voltage winding txuas nyob rau hauv lub hnub qub duab bears ib tug voltage ntawm √ 3 lub sij hawm qis tshaj qhov txuas nyob rau hauv daim duab peb sab, uas yuav coj tau zoo economic kev pab cuam. Nws yog feem ntau siv nyob rau hauv lub tshuab fais fab uas qhov nruab nrab taw tes yog ncaj qha grounded ntawm 110kV thiab saum toj no.

Distribution Transformer Rating

50kVA, 63kVA, 80kVA, 100kVA, 125kVA, 160kVA, 200kVA, 250kVA, 315kVA, 400kVA, 500kVA, 630kVA, 800kVA, 1000kVA, 1250kVA, 22010kVA, 0. 0kVA, 5000kVA, 6300kVA, 8000kVA, 10000kVA