Jiangshan Scotech Hluav Taws Xob Co., Ltd.
5 MVA Transformers Rau Tsheb ciav hlau teeb-88/2*1.22+2.36 KV|South Africa 2025
Muaj peev xwm: 5000 kVA
Cov zis hluav taws xob: 88/2 * 1.22+2.36 kV
Feature: Pab voltage: 2.36 kV
Jiangshan Scotech Electrical Co., Ltd yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm 5 mva transformers rau tsheb ciav hlau teeb -88/2*1.22+2.36 kv|South Africa 2025 hauv Suav teb. Thov koj xav tias dawb mus yuav cov khoom lag luam raug nqi muag ntawm no thiab tau txais daim duab kos los ntawm peb lub hoobkas. Tiv tauj peb kom paub meej ntxiv.
Precision fais fab hloov mus rau du acceleration: Traction Transformer
01 General
1.1 Project Description
5000 kVA transformers rau tsheb ciav hlau teeb raug xa mus rau South Africa hauv 2025. Lub zog ntsuas ntawm lub transformer yog 5000 kVA nrog ONAN txias. Thawj qhov hluav taws xob yog 88 kV nrog ± 2 * 2.5% tapping ntau yam (NLTC), qhov nruab nrab voltage yog 2 * 1.22+2.36 kV, lawv tsim ib pawg vector ntawm Y / d ± 15℃d11.
Nrog lub peev xwm ntsuas ntawm 5000kVA, lub tshuab hloov pauv ua haujlwm ntawm thawj qhov hluav taws xob ntawm 88kV thiab qhov nruab nrab qhov hluav taws xob ntawm 2 × 1.22kV (rau traction) ntxiv rau 2.36kV tertiary winding (100kVA) nplooj siab rau lub zog txhawb kev hloov pauv. Nws ua raws li tus qauv 50Hz zaus, uas muaj cov kab hluav taws xob txuas ntxiv (nruam disc-hom rau siab-voltage thiab kauv- hom rau qis-voltage) uas ua kom muaj hluav taws xob zoo heev thiab cov khoom siv hluav taws xob zoo tiv thaiv tam sim no. Lub ONAN (Oil Natural Air Natural) lub tshuab ua kom txias tau zoo dissipates cua sov, ua tiav los ntawm thermal nce txwv (tsawg dua los yog sib npaug rau 50K rau windings, Tsawg dua los yog sib npaug rau 40K rau cov roj saum toj kawg nkaus) kom lav tau ntev -lub sij hawm ruaj khov txawm tias nyob rau hauv cov khoom hnyav.
Qhov tseem ceeb, lub tshuab hloov pauv tau tsim los tiv thaiv cov xwm txheej hnyav: 2x thauj khoom rau 30 feeb, 3x thauj khoom rau 1 feeb, thiab 3.5x thauj khoom rau 10 vib nas this (tripping ntawm 4.25x load), ua rau nws sib xws nrog kaum ob -pulse rectifier units. Nruab nrog NLTC (Tsis yog-Load Tap Changer) nrog ± 2 × 2.5% hluav taws xob tswj kev tswj hwm (lockable rau kev nyab xeeb), nws haum rau qhov hloov pauv voltage (± 5% ib txwm, -15% hauv cov xwm txheej tshwj xeeb) thiab txo qis kev cuam tshuam kev cuam tshuam. Nws cov qauv tsim muaj zog suav nrog ntau dua lossis sib npaug rau 6 hli steel tank (16mm puag phaj), cov khoom siv hluav taws xob tag nrho, thiab cov khoom siv xws li roj relays, overload thermal relays, thiab surge arresters kom muaj kev nyab xeeb ntawm kev ua haujlwm.
Adaptable rau hnyav ib puag ncig (altitude 0-1800m, kub -10℃rau +55℃, 10%-90% txheeb ze av noo, hnyav muaj kuab paug), no traction transformer combines txhim khu kev qha kev ua tau zoo, durability, thiab kev nyab xeeb nta, ua ib tug zoo tagnrho tov rau South Africa txoj kev tsheb ciav hlau traction zog xav tau.
1.2 Technical Specification
5000kVA transformers rau tsheb ciav hlau teeb specifications hom thiab cov ntaub ntawv ntawv
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Xa rau
South Africa
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Xyoo
2025
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Hom
traction transformer
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Txuj
IEC60076
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Rated zog
5000 kVA ua
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Ntau zaus
50 HZ
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Theem
3
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Hom cua txias
ONAN
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Thawj Voltage
88kv ua
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Secondary Voltage
2 * 1.22+2.36 kV
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Cov khoom siv winding
Tooj
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Angular tshem tawm
Y / d ± 15℃d11
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Impedance
8.5%
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Coj mus rhaub Changer
NLTC
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Tapping Range
±2*2.5%
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Tsis Load Loss
7,2 kW :os
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Ntawm Load Loss
33.7 kWm 2
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1.3 Cov duab kos
5000 kVA transformers rau tsheb ciav hlau teeb duab kos duab thiab loj.
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02 Kev tsim khoom
2.1 LV TSI
Qhov qis-voltage (LV) bushing yog ib qho tseem ceeb insulating feedthrough ntaus ntawv uas muab ib tug ruaj ntseg, kaw txoj kev rau lub transformer qhov tsawg-voltage winding ua rau tawm hauv lub tank. Nws yog tsim los kom muaj kev nyab xeeb ua haujlwm siab tam sim no los ntawm cov windings sab hauv mus rau sab nraud traction network cables thaum tuav cov hluav taws xob zoo heev tiv thaiv lub tank hauv av. Tsim los nrog lub vaj tsev plooj (porcelain), nws muaj lub hauv paus tooj liab tus neeg xyuas pib thiab muaj cov khoom siv insulating. Nws lub zog tsim kom ntseeg tau tias kev ua tau zoo nyob rau hauv lub tshuab kev co thiab thermal cycles yam ntxwv ntawm txoj kev tsheb ciav hlau ua haujlwm, ua rau nws yog ib qho tseem ceeb rau kev tsim hluav taws xob.
2.2 Tertiary Bushing
Lub traction transformer muaj xws li ib tug delta delta - txuas tertiary winding, feem ntau rated rau auxiliary fais fab mov. Qhov no low-voltage winding, feem ntau tsim los ntawm ib tug kais los ntawm lub ntsiab theem nrab winding los yog raws li ib tug cais coil, muab ib tug cais peb-theem qhov chaw. Nws yog coj tawm los ntawm ib tus neeg bushings rau tshwj xeeb pub auxiliary transformers, xws li cov ntsuas rau 100 kVA ntawm 2.36 kV, uas lub hwj chim onboard auxiliary loads.
2.3 HV Bushing
Lub HV bushing ntawm 5MVA traction transformer yog tsim los rau 88kV kev ua haujlwm, muaj qhov tsawg kawg nkaus txoj kab uas hla ntawm 19mm kom ntseeg tau tias muaj zog txhua yam rau kev sib txuas sab nraud. Nrog rau qhov nyob tag nrho qhov siab ntawm hauv av tsis tshaj 2.7m (sib piv rau ntawm - qhov siab siab -voltage busbar qhov siab), nws txais tag nrho cov rwb thaiv tsev thiab haum rau cov cheeb tsam uas muaj xob laim hnyav (tshaj nrog cov neeg ntes hluav taws xob nruab nrab ntawm HV tsheb npav thiab substation grounding). Nws muab kev ruaj ntseg rwb thaiv tsev thiab kev sib txuas rau siab -voltage sab thaum ua tau raws li qhov hnyav ib puag ncig thiab kev ua haujlwm ntawm cov txheej txheem traction.
2.4 Marshalling Box
Lub thawv marshalling ntawm no traction transformer ua raws li ib tug centralized auxiliary hluav taws xob interface chav tsev, encased nyob rau hauv ib tug robust hlau enclosure nrog latching nkag qhov rooj. Nws sab hauv tsev muaj ntau lub davhlau ya nyob twg thaiv, cov khoom siv tswj kev sib cog lus (xws li cov relays me me lossis kev tiv thaiv modules), thiab ib qho kev tsim ua - nyob rau hauv lub teeb kom yooj yim rau ntawm - chaw ua haujlwm tu. Kev khav theeb IP55 tiv thaiv kom tiv taus qhov hnyav heev- qhov chaw nyob (xws li cov pa phem hnyav, qhov kub thiab txias sib txawv), nws suav nrog corrugated hoses nyob rau hauv qab rau kaw, teeb tsa cable routing, thaum cov ntawv sau sab hauv pab ua kom yooj yim rau kev txheeb xyuas cov kab hluav taws xob. Chav tsev no centralizes lub transformer tswj, teeb liab, thiab auxiliary Circuit Court sib txuas, ruaj ntseg hluav taws xob kev sib cuag thaum streamlining upkeep-aligning nrog rau nruj kev ua hauj lwm xav tau ntawm railway traction systems.
2.5 Kub-Dip Galvanized Radiator
Lub kub-dip galvanized radiator ntawm lub transformers rau tsheb ciav hlau teeb yog ib tug tub ntxhais txias tivthaiv, featuring ib tug ruaj khov kub-dip galvanized txheej uas muab muaj zog corrosion kuj- zoo tagnrho rau kev tiv taus hnyav traction- qhov chaw (cov pa phem hnyav, qhov kub thiab txias). Ua raws li cov qauv finned los txhim kho cov kev sib pauv cua sov, nws ua ke nrog lub tshuab hluav taws xob ONAN cua txias kom tshem tawm cov cua sov los ntawm cov cua kub thiab cov roj saum toj kawg nkaus, ua kom kub tsis pub dhau kev txwv kev ua haujlwm. Nws txoj kev tsim kho galvanized muaj zog kuj zam kev tsheb ciav hlau-txog kev vibrations, ua kom ruaj khov, ntev- ua haujlwm txias txias los txhawb lub tshuab hluav taws xob hnyav -load haujlwm.
2.6 Roj Drain Plug
Cov roj ntws ntsaws rau transformers rau lub tsheb ciav hlau teeb yog ib qho tseem ceeb accessory, feem ntau yog ua los ntawm cam khwb cia hlau los yog tooj dag, mounted rau hauv qab ntawm lub transformer tank. Nws txais yuav threaded kev twb kev txuas rau ruaj khov installation thiab yog nruab nrog ib tug sealing nplhaib los tiv thaiv transformer roj to. Feem ntau yog siv rau kev tswj cov roj ntws tawm thaum lub sijhawm tu (xws li, hloov roj, tshuaj xyuas) thiab kuaj cov roj kom zoo, nws feem ntau muaj kev tiv thaiv -txoj kev tub sab nyiag- xws li lub cev cylindrical nrog nthwv dej- zoo li lub qhov tshwj xeeb thiab lub hauv paus thawj coj (xav tau lub cuab yeej tshwj xeeb rau kev khiav lag luam) lossis lub nplhaib xauv nrog lub ntsuas phoo. { una }} Tau tshaj cov roj transformer, nws ua haujlwm nyob rau hauv -20℃mus rau 110℃thiab nyob rau hauv nominal siab Tsawg tshaj los yog sib npaug rau 1.6MPa.
03 Kev Xeem
Qhov kev ntsuam xyuas no ntsuas qhov kev ruaj ntseg ntawm cov windings los ntawm kev siv lub DC voltage ntawm txhua qhov cua thiab lub ntiaj teb, nrog rau ntawm cov kab sib cais, siv lub megohmmeter. Tus nqi ntsuas tsis kam, feem ntau nyob rau hauv ntau pua lossis ntau txhiab megohms, qhia qhov zoo thiab qhuav ntawm cov khoom rwb thaiv tsev. Qhov sib txawv ntawm cov txiaj ntsig thiab qhov polarization Performance index (PI) lossis dielectric absorption ratio (DAR) yog qhov tseem ceeb rau kev ntsuam xyuas cov xwm txheej rwb thaiv tsev, pab txhawm rau txheeb xyuas qhov sib kis, noo noo ingress, lossis degradation raws li cov qauv xws li IEC60076.
04 Site thiab Summary
Hauv kev xaus, lub traction transformer sawv ua ib qho tseem ceeb thiab muaj zog tivthaiv nyob rau hauv railway electrification systems. Nws txoj haujlwm txhim khu kev qha tau lees paub los ntawm kev sib xyaw ua ke ntawm cov qauv tsim, siab - cov ntaub ntawv zoo, thiab cov qauv tsim nruj, ua rau nws tuaj yeem tiv taus cov kev xav tau ntawm kev pabcuam traction -xws li thermal cycling, mechanical vibrations, and electronicstresses. Kev saib xyuas zoo thiab kev kwv yees, txhawb nqa los ntawm kev kuaj mob xws li kev ntsuas kev tiv thaiv hluav taws xob thiab kev ntsuas roj, yog qhov tseem ceeb rau kev ua kom nws lub neej ua haujlwm siab tshaj plaws thiab tiv thaiv kev ua tsis tiav. Thaum kawg, kev ua tau zoo thiab kev noj qab haus huv ntawm traction transformer yog qhov tseem ceeb rau kev lees paub kev nyab xeeb, kev ua haujlwm zoo, thiab kev muaj peev xwm txuas ntxiv ntawm hluav taws xob tsheb thauj mus los.
Cim npe nrov: transformers rau tsheb ciav hlau teeb, chaw tsim tshuaj paus, tsum, nqe, nqi
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