Yuav ua li cas npaum li cas voltage poob yuav ib tug 1600kVA transformer tsim nyob rau hauv tag nrho load?

 

• Rau tus qauv GB- ua raws 1600 kVA transformer 1,tuspuv -load voltage regulationyog feem ntau2%–4.5%.
• Covfeem ntau kev lag luam tus nqi, raws li a0.8 zog, yog3.5%–4.0%.
• Nyob ntawm400V qis-voltage sab, qhov sib thoojhluav taws xob poobyog feem ntau7–18 V.

 

Hauv lwm lo lus, thaum a1600kVA transformer muajua haujlwm ntawmpuv load, tso zis voltage ntawm lub400V qis-voltage sabfeem ntau txo qis los ntawm kwv yees li400V tsis muaj loadmus ncig382–393 V. Qhov ntau yam no feem ntau lees txais raws li tus qauv kev lag luam.

 

 

Xav tau qis voltage poob rau koj qhov project?

GNEE Electric muab customized low-impedance 1600 kVA transformers thiab kev sab laj engineering pub dawb - nyem hauv qab no nug.

Complimentary Engineering Consultation

 

 

To taubpuv -load voltage poob, nws yog ib qho tseem ceeb kom paub qhov txawv ntawm peb lub tswv yim hauv qab no:

 

Tsis muaj -Load Voltage - Qhov tso zis hluav taws xob ntawm lub tshuab hloov hluav taws xob thib ob thaum tsis muaj kev sib txuas. Txij li thaum tsis muaj tam sim no ntws los ntawm lub winding, tsis muaj qhov hluav taws xob poob thoob plaws hauv cov winding tsis kam los yog leakage reactance, thiab cov zis voltage yog ze rau tus nqi ntsuas.

Full -Load Voltage- Qhov tso zis hluav taws xob ntawm lub tshuab hluav taws xob thib ob thaum lub tshuab hloov pauv muab nws qhov ntsuas ntsuas. Raws li kev thauj khoom tam sim no ntws los ntawm winding tsis kam thiab to reactance, ib qho hluav taws xob sab hauv poob tshwm sim, ua rau cov zis hluav taws xob qis dua.

Kev tswj hluav taws xob- Qhov no yog tus qauv kev lag luam metric siv los ntsuas qhov ntsuas hluav taws xob hloov pauv. Nws yog txhais raws li qhov sib txawv ntawm qhov tsis muaj -load voltage thiab load voltage ntawm tib lub winding raws li teev load thiab lub hwj chim yam xwm txheej, qhia raws li ib feem ntawm qhov tsis muaj -load voltage.

 

Cov mis laij lej yog:

• Voltage Regulation (%)=[(U₁ − U₂) / U₁] × 100%

Qhov twg:

• U₁= Tsis muaj-load voltage
• U₂= Load voltage

 

Lus Cim Tseem Ceeb:

Feem pua ​​impedance (Z%)thiabKev tswj hluav taws xobyog ob qhov sib txawv thiab yuav tsum tsis txhob siv sib hloov.

• Feem pua ​​impedance (Z%)sawv cev rau qhov feem pua ​​​​voltage yuav tsum tau mus ncig tam sim no thaum lub voj voog thib ob luv luv -circuited.
• Kev tswj hluav taws xob, los ntawm qhov sib txawv, ntsuas qhov kev hloov pauv hauv theem nrab voltage raws li qhov sib txawv ntawm qhov tsis muaj load rau tag nrho cov load thaum lub hauv paus voltage tseem nyob tas li.

SivZ%ncaj qha mus kwv yees voltage kev cai tsis sib cais nwsresistive (R%)thiabreactive (X%)Cheebtsam yuav ua rau kev xam tsis raug.

 

 

1. Transformer feem pua ​​impedance (Qhov tseem ceeb tshaj plaws)

Cov transformerfeem pua ​​impedance (impedance voltage)yog qhov tseem ceeb tshaj plaws uas txiav txim siab qhov loj ntawm tag nrho -load voltage poob. Feem ntau, qhov siab dua qhov feem pua ​​impedance, qhov ntau dua qhov voltage sab hauv poob nyob rau hauv tag nrho -load tej yam kev mob.

 

Raws liGB/T 6451, tus qauvfeem pua ​​impedancerau630 kVA rau 1600 kVA roj- raus tis transformersyog4.5%. Rau1600 kVA qhuav- hom transformers, qhov feem pua ​​impedance yog6%. Zuag qhia tag nrho, qhov feem pua ​​impedance ntawm a1600 kVA transformer 1feem ntau ntog hauv thaj tsam ntawm4.0% txog 6.5%.

 

Qhov no yog thawj qhov laj thawj vim li casqhuav - hom transformersfeem ntau muaj ntau dua -load voltage poob ntau duaroj-immersed transformers-lawv feem pua ​​impedance siab dua.

 

【Pro Tip: Tsawg impedance tsis yog ib txwm zoo dua. Thaum nws txo qis voltage, nws kuj nce luv luv -circuit tam sim no. Ntawm GNEE Electric, peb pab koj nrhiav qhov chaw qab zib - tsawg txaus rau qhov ruaj khov voltage, tab sis siab txaus kom koj lub switchgear muaj kev nyab xeeb.】

 

2. Load Power Factor (feem ntau saib tsis tau hauv cov ntawv thov kev lag luam)

Covload zog factormuaj kev cuam tshuam loj raukev cai voltage. Raws li qhov ua tau zoo ntawm lub zog txo qis, kev tswj hluav taws xob nce ntxiv, ua rau muaj qhov loj dua qhov poob qis hauv qhov load.

 

Industrial systems feem ntau muaj feem ntau ntawminductive loads, xws li hluav taws xob motors, uas txo cov kev khiav hauj lwm lub hwj chim thiab ua kom lub voltage poob. Thaum lub hwj chim factor poob qis0.5, qhov voltage poob ua considerably ntau pronounced.

 

Kev tswj hluav taws xob nce mus txog nws qhov tsawg kawg nkaus tus nqi ntawm aKev sib haum xeeb lub zog (1.0). Raws li lub zog qhov tseem ceeb txo qis hauv qablagging zog factortej yam kev mob, kev tswj voltage nce raws li.

 

【Pro Tip: Ntau tus neeg muas zaub liam lub tshuab hluav taws xob thaum lawv pom qhov hluav taws xob poob, tab sis hauv 80% ntawm cov neeg mob, tus neeg ua txhaum tiag yog lub zog qis. Ua ntej hloov koj lub tshuab hloov pauv, kom GNEE Hluav Taws Xob ntsuas koj qhov kev siv hluav taws xob them nyiaj rov qab - ib qho yooj yim capacitor bank upgrade feem ntau kho qhov teeb meem ntawm ib feem ntawm tus nqi.】

 

3. Hom Transformer: Qhuav-Type vs. Roj-Immersed

• Roj-immersed transformersfeem ntau muaj qis duafeem pua ​​impedance(kwv yees4.5%), ua rau muaj qhov me me puv -load voltage poob.
• Qhuav- hom transformersfeem ntau muaj siab duafeem pua ​​impedance(kwv yees6%), ua rau qhov loj dua puv -load voltage poob.

 

 

Hom Transformer	Feem pua ​​Impedance	Voltage Regulation (Tag nrho-Load Voltage Drop)	Qhov tseeb Voltage poob ntawm 400 V LV Sab
1600 kVA Roj-Immersed Transformer	4.5%	2.5%–3.5%	10–14 V
1600 kVA Qhuav-Hom Transformer	6.0%	3.5%–4.5%	14–18 V

• Rau1600 kVA roj-raug faib transformers, tus qauvfeem pua ​​impedanceqhia los ntawmGB/T 6451yog4.5%.
• Rau1600 kVA qhuav- hom transformers, covfeem pua ​​impedanceyog feem ntau6%, ua raws liGB/T 10228thiab lwm yam kev cai.

 

 

Tus transformer voltage- poob xam mis yog:

• ΔU%=× (U_R% × cosφ + U_X% × sinφ)

Qhov twg:

• = Transformer load yam (qhov tseeb load ÷ rated peev)
• U_R%= Resistive feem ntawm qhov feem pua ​​impedance
• U_X%= Reactive feem ntawm qhov feem pua ​​impedance
• cov φ= Load power factor

 

Piv txwv suav

Transformer specifications:

• Rated voltage:10/0.4 kV
• Rated peev:1600 kVA ua
• Tsis muaj -load poob:1.95 kWm
• Load poob (luv-circuit poob):PEB 11.73 kW
• Load factor: = 0.625
• Lub zog yam:cosφ=0.8

Hauv qabpuv -load condition (=1), transformer ncav cuag nwssiab tshaj voltage poob. Raws li cov khoom lag luam poob qis, cov khoom thauj tam sim no txo ​​qis raws li, thiab qhov hluav taws xob poob qis yog proportionally.

 

 

【Pro Tip: Yog tias koj tsis yog tus kws tshaj lij, koj tsis tas yuav ua lej lej no. GNEE Electric muab qhov hluav taws xob pub dawb-tej daim ntawv qhia suav nrog txhua qhov kev nug. Peb khiav cov lej rau koj qhov tshwj xeeb load thiab cable ntev, yog li koj tau txais cov lus teb meej yam tsis muaj mob taub hau. 】

 

Daim Ntawv Qhia Txog Kev Xam Xaj

 

 

Yog hais tias qhov ntsuas voltage poob ntawm koj1600kVA transformer muajyog qhov tseem ceeb tshaj tus nqi theoretical, ib lossis ntau yam hauv qab no yuav muaj lub luag haujlwm:

 

1. Kev thauj khoom ntau dhau lossis kev thauj khoom tas mus li

Kev ua haujlwm ntawm lub tshuab hluav taws xob saum toj no nws cov peev txheej muaj peev xwm ua kom qhov hluav taws xob poob. Hauv ib rooj plaub uas muaj ntaub ntawv, a1600kVA transformer muajua haujlwm nyob rau hauv tsis tu ncua overload, nrog lub load tam sim no ncav cuag2,500–2,690 A. Yog li ntawd, qhov voltage ntawm lub transformer terminals poob rau xwb379 V.

Nws yog ib qho tseem ceeb kom nco ntsoov tias a1600 kVA ntsuas muaj peev xwmtsis tau txhais hais tias lub transformer muaj peev xwm tsis tu ncua muab tag nrho inrush los yog pib thov ntawm loj loads.

 

2. Ntev Feeder Ntev

Ntev feeder cables tuaj yeem tsim qhov tseem ceeb ntxiv voltage poob tshaj qhov transformer nws tus kheej.

Hauv ib qhov project, a1600kVA transformer muajmuab aLub cev muaj zog 160 kWlos ntawm kwv yees220 mntawm240 mm² aluminium cable. Thaum pib lub cev muaj zog, lub davhlau ya nyob twg voltage poob rau xwb260 V. Lub zog feeder ntau dhau poob ua rau lub cev muaj zog tsis txaus qhov hluav taws xob thiab tsis txaus pib torque.

Txawm tias tom qab kev txhim kho thib ob240 mm² aluminium cable nyob rau hauv parallel, qhov voltage tseem qis li300 Vthaum tam sim no mus txog1,100 A.

 

3. Tsis tshua muaj hluav taws xob

Ib qho qisload zog factornce transformerkev cai voltage, ua rau lub zog loj dua.

Piv txwv li, nyob rau hauv ib tug industrial installation, lub transformer tso zis voltage ntsuas379 Vnrog azog 0.90. Tom qab hla dhau100 mntawm lub hwj chim cable, qhov voltage ntawm lub load tau poob ntxiv mus345 V.

 

4. Cov kab hluav taws xob tsis zoo

Xaiv qhov tsis txaus cable hla- thaj tsam ntu tuaj yeem ua rau muaj qhov poob qis heev.

Hauv qee qhov kev teeb tsa, tag nrho cov feeder voltage poob yuav ncav cuag kwv yees li8%, zoo tshaj qhov feem ntau lees txais kev txwv ntawm5%.

 

5. Tsis txaus Transformer muaj peev xwm lossis kev tsim khoom tsis raug

Yog hais tias tag nrho lwm yam tau raug txiav tawm, lub transformer nws tus kheej yuav tsum tau soj ntsuam. Qee cov engineers teb tau nug seb puas yog lub tshuab hluav taws xob tau teeb tsatsim nrog cov khoom siv tsis txauslos yogtsis tau muab nws qhov ntsuas 1600 kVA muaj peev xwm, uas ua rau overvoltage poob nyob rau hauv load.

 

 

Xaiv lub Transformer nrog qis feem pua ​​impedance

Covfeem pua ​​impedancentawm transformers rated1600 kVA thiab qis duatsis yog ib txwm kho. Rau cov kev siv nrog cov kev cai nruj voltage, transformer nrog acustomized qis feem pua ​​impedancetuaj yeem teev.

 

Ua kom muaj qhov tsim nyog Load Factor

Yuav kom txo qis voltage poob thiab txhim kho kev khiav hauj lwm kev cia siab, nws yog pom zoo kom khaws lub transformerload factor hauv qab 80%thaum twg los tau. Tsis txhob ua haujlwm ntev ntawm kev thauj khoom tag nrho lossis nyob rau hauv cov xwm txheej overload.

 

Nruab Reactive Power Compensation

Txhim kho covfais fab xwm txheejdhaureactive zog them nyiajtuaj yeem txo qis voltage poob. Kev them nyiaj hauv zos txo cov reactive tam sim no ntws los ntawm lub transformer, yog li txo qhov voltage poob thiab lub zog poob.

 

【Pro Tip: Thaum ntxiv cov capacitors, zam dhau - cov nyiaj them poob haujlwm. Ib qho tseem ceeb ntawm lub zog muaj peev xwm ua tau nce qhov voltage siab dua qib tau txais. GNEE Electric tuaj yeem pab koj loj ntawm lub txhab nyiaj capacitor kom raug ntaus qhov zoo tshaj 0.92–0.95 ntau yam. 】

 

Siv High-Cov tub ntxhais zoo thiab cov khoom siv winding

Transformers tsim nrogqis- poob magnetic coresthiabsiab - zoo windingsmuaj qis sab hauv impedance, pab txo qis voltage thaum ua haujlwm.

 

Siv ib qho On -Load Tap Changer (OLTC)

IbNtawm -Load Tap Changer (OLTC)tso cai rau lub transformer kais txoj hauj lwm yuav tsum tau kho thaum lub transformer tseem energized thiab nqa load. Los ntawm kev hloov pauv hloov pauv hloov pauv, qhov tso zis hluav taws xob tuaj yeem raug tswj kom them nyiaj rau qhov sib txawv ntawm qhov voltage thiab tswj cov qib uas xav tau.

 

Xaiv qhov Tsim Nyog Cable Size

Fais fab cables yuav tsum loj me me tsis yog raws li lawvtam sim no - nqa peev (ampacity)tab sis kuj raws litso cai voltage poob. Kev tsim cov kab hluav taws xob tsim nyog yog qhov tseem ceeb rau kev tswj xyuas qhov hluav taws xob siv tau ntawm cov khoom thauj.

 

Txo qhov Feeder Length

Thaum twg ua tau, nruab lub transformerze li sai tau rau lub chaw thau khoom. Shorter feeder lengths txo cov kab voltage poob thiab txhim kho tag nrho cov system voltage kev ua tau zoo.

 

Kho qhov siab -Voltage Tap Position

Distribution transformers feem ntau yog nruab nrogsiab -voltage tap changers. Kho qhov kais dej tuaj yeem ua rau nce lossis txo qis cov zis hluav taws xob thib ob kom them nyiaj rau cov khoom siv hluav taws xob sib txawv thiab kev ua haujlwm.

 

 

Raws li tus kws tshaj lijfais fab transformer manufacturers, GNEE Electricmuab customizedlow-impedance 1600 kVA transformercov kev daws teeb meem los pab cov neeg siv khoom txo qis voltage poob thiab txhim kho tag nrho lub zog hluav taws xob ua haujlwm.

 

✅ Tsim nyob rau hauv nruj raws li IEC 60076 thiab GB 1094 tus qauv

✅ Kev cai qis -impedance tsim muaj- feem pua ​​impedance tuaj yeem hloov kho rautsawg li 4.0% rau roj-immersed transformers, thaumqhuav- hom transformers tuaj yeem ua kom zoo rau qis dua 5.0%, raws li qhov yuav tsum tau ua ntawm daim ntawv thov thiab cov txheej txheem luv luv -circuit txiav txim siab.

✅ Factory test reports suav nrog- txhua qhov hloov pauv tau muab nrogntsuas qhov ntsuas qhov ntsuas hluav taws xob thiab cov ntawv tshaj tawm kev ntsuas niaj hnub, xyuas kom tiav traceability ntawm cov ntaub ntawv kev ua tau zoo.

 

 

✅ Dawb transformer xaiv kev pab- peb cov engineers pom zoo kom tsim nyog transformer configuration raws li koj cov ntaub ntawv load, installation tej yam kev mob, thiab kev khiav hauj lwm yuav tsum tau.

✅ Dawb voltage-poob suav kev pabcuam- peb ntsuas qhov ntsuas hluav taws xob hloov hluav taws xob poob, qhov ntsuas hluav taws xob poob qis, lub cev muaj zog pib qhov hluav taws xob poob, thiab lwm yam kev ntsuas qhov tseem ceeb los txhawb kev tsim qauv tsim.

 

Seb koj xav tau ib qhoroj- rauslos yogqhuav -hom 1600 kVA transformer, los yog muaj cov kev cai voltage thiab voltage-poob yuav tsum tau,GNEE Electrictuaj yeem muab kev daws teeb meem raws li koj daim ntawv thov.

 

Hu rau GNEE Electric hnub nokom tau txais koj li customized1600 kVA transformer xaiv tswv yimthiab akev tshaj lij voltage-poob suav ceeb toom.

 

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