Jiangshan Scotech Hluav Taws Xob Co., Ltd.
250 kVA Pad Mounted Transformer-23/0.4 kV|Chile xyoo 2024
Peev xwm: 250kVA
Lub Zog: 23/0.4kV
Feature: Moulded Case Circuit Breaker
Kev ua haujlwm siab, tsis tshua muaj suab nrov-Peb-theem ncoo-mounted transformers tiv thaiv koj cov kev daws teeb meem!
01 General
1.1 Project Background
Tus neeg yuav khoom ntawm lub transformer rau qhov project no yog Dovey . 250 kVA ncoo mounted transformer tau xa mus rau Chile hauv 2024. Lub zog ntsuas ntawm lub transformer yog 250 kVA nrog ONAN txias. Thawj qhov hluav taws xob yog 23 kV nrog ± 2 * 2.5% tapping ntau yam (NLTC), qhov nruab nrab voltage yog 0.4 kV, lawv tsim ib pawg vector ntawm Dyn1, thiab nws yog radial pub thiab tuag pem hauv ntej transformer. Pad mounted transformer yog lub compact sab nraum zoov ua ntej -ntsia transformer, feem ntau yog siv nyob rau hauv lub hwj chim faib system los hloov nruab nrab-voltage hluav taws xob zog mus rau hauv tsawg-voltage hluav taws xob zog, haum rau cov neeg zej zog, cov chaw lag luam, chaw ua si thiab lwm qhov chaw uas xav tau kev siv hluav taws xob hauv nruab nrab. ncoo mounted transformer yog Hoobkas prefabricated, cov neeg siv tsuas yog yuav tsum tau nkag mus rau lub siab -voltage fais fab mov thiab load cable yuav siv tau, zoo heev simplifying lub installation project. Nws tuaj yeem kho raws li tus neeg siv yuav tsum tau ua kom tau raws li qhov kev thauj khoom thiab kev ua haujlwm ntawm cov xwm txheej sib txawv. Kev tiv thaiv cov cuab yeej xws li cov hluav taws xob hluav taws xob thiab cov fuses tuaj yeem tsim tau raws li cov neeg siv khoom xav tau los tiv thaiv cov khoom siv thiab cov phiaj xwm hluav taws xob thaum muaj overload lossis luv luv.
1.2 Technical Specification
250 kVA ncoo mounted transformer specifications hom thiab cov ntaub ntawv ntawv
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Xa rau
Chile
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Xyoo
2024
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Hom
Pad mounted transformer
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Txuj
IEEE Std C57.12.34-2022
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Rated zog
250kVA ua
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Ntau zaus
50 tzs
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Theem
3
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Hom cua txias
KNAN
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Thawj Voltage
23kv ua
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Secondary Voltage
0,4kv ua
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Cov khoom siv winding
Tooj
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Angular tshem tawm
Dyn 1
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Impedance
4%
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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
Lub cev muaj zog: 0.5KW
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Ntawm Load Loss
3.705 KW
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Khoom siv
Standard Configuration
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1.3 Cov duab kos
250 kVA ncoo mounted transformer daim duab kos duab thiab loj.
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02 Kev tsim khoom
2.1 Core
Qhov sib nqus flux ntawm txhua theem ntawm peb -Kum core tsim ib lub kaw sib nqus sib nqus los ntawm cov kab uas nyob ib sab, thiab tsis tas yuav tsum muaj lwm qhov txuas ntxiv ntawm cov tub ntxhais, txo qhov tshwm sim ntawm cov hlau nplaum to. Los ntawm kev tsim tsim nyog, qhov sib nqus flux ntawm peb kab uas nyob ib sab offset ib leeg qhov to, kom cov hlau nplaum Circuit Court yog sib npaug thiab qhov kev vibration thiab suab nrov hauv kev ua haujlwm raug txo. The design of the core magnetic circuit is reasonable, the distribution of magnetic flux density is uniform, and the iron loss (including hysteresis loss and eddy current loss) is effectively reduced. Nyob rau hauv peb-kem tsim, lub sib nqus Circuit Court yog sib npaug zos thiab cov cua sov concentration yog tsawg, uas yog conducive rau tag nrho cov tshav kub dissipation. Cov qauv ntawm peb -kem hlau core yog muaj zog, thiab nws muaj peev xwm tuav tau zoo txhua yam lub zog nyob rau hauv qhov cuam tshuam ntawm luv luv Circuit Court tam sim no, thiab tsis yooj yim rau deformation. Vim tias qhov sib npaug zoo ntawm cov hlau nplaum sib nqus, nws tuaj yeem tiv nrog luv luv - lub sij hawm voltage hloov thiab tam sim no shocks nyob rau hauv daim phiaj fais fab ntau stably.
2.2 Cua txias
Qhov qis-voltage foil yog qhwv ib ncig ntawm txheej sab hauv, thiab lub siab-voltage hlau yog qhwv nyob ib ncig ntawm txheej txheej, thiab cov hluav taws xob siv hluav taws xob sab hauv thiab sab nraum lub winding yog tsim nyog faib kom tsis txhob muaj kev puas tsuaj los ntawm hluav taws xob hauv zos ntau dhau. Cov ntawv ci- cov qauv ntawm qhov qis-voltage winding tuaj yeem nqa cov xaim hlau nplaum uas tsim los ntawm qhov siab -voltage winding, yog li txo qis inductance poob ntawm qhov qis -voltage winding. Cov ntawv ci-mob thiab xaim- qhov txhab ua ke tsim kom txo qis axial loj ntawm cov windings, ua rau tag nrho cov qauv ntawm transformer compact, thiab txo qhov ntim thiab nqi. Cov ntawv ci winding qauv ntawm qis-voltage winding pab tsim kom muaj kev sib faib flux, uas tuaj yeem txo qis induction thiab txhim kho transformer efficiency thaum ua ke nrog siab -voltage hlau winding. Cov ntawv ci-mob tsawg-voltage winding muaj lub zog txhua yam thiab tuaj yeem tiv taus qhov cuam tshuam ntawm qhov luv luv - tam sim no. Lub high voltage hlau winding qauv muaj zoo rwb thaiv tsev thiab muaj peev xwm tiv taus high voltage poob siab, thiab kev sib txuas ntawm ob qho ntxiv txhim kho kev ntseeg siab ntawm transformer.
2.3 Tank
Lub tank qauv yog ua los ntawm siab- lub zog steel phaj thiab kho nrog anti- txheej corrosion, uas tuaj yeem tiv taus ib puag ncig hnyav xws li cov av noo siab, siab ntsev tsuag lossis kub sib txawv. Cov txheej txheem tsis siv neeg xws li laser txiav thiab cov lej tswj welding yog siv los ua kom cov khoom ruaj khov thiab txo cov nqi zog. KNAN-cov roj tank txias los ntawm SCOTECH ua haujlwm tag nrho ntawm cov khoom siv hluav taws xob (natural ncig ntawm cov roj + ntuj cua txias), zam lub suab nrov los ntawm kiv cua lossis twj tso kua mis ua haujlwm, tshwj xeeb tshaj yog nyob rau hauv cov suab nrov -sensitive applications.
2.4 Kev sib dhos zaum kawg
Kev npaj cov khoom: Tshawb xyuas cov tub ntxhais transformer, enclosure, hluav taws xob terminals, thiab cov khoom tiv thaiv.
Transformer Installation: Sib sau cov tub ntxhais transformer nrog cov windings thiab ua cov roj immersion kev kho mob.
Enclosure Assembly: Sib sau cov hlau thaiv thiab siv cov tshuaj tiv thaiv -corrosive txheej, ua kom cov ntsaws ruaj ruaj ntawm txhua qhov sib txuas.
Kev sib txuas hluav taws xob: Txuas siab thiab tsis tshua muaj hluav taws xob terminals thiab nruab qhov hauv av.
Txias System: Nruab cov khoom siv cua txias kom ntseeg tau tias kev ua haujlwm kub zoo.
Sealing thiab kuaj: Xyuas kom tag nrho cov pob qij txha raug kaw thiab ua kev sim dielectric thiab grounding.
03 Kev Xeem
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Tsis muaj. |
Cov khoom kuaj |
Chav tsev |
Kev txais txiaj ntsig |
Ntsuas Tus Nqi |
Xaus |
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1 |
Kev ntsuas ntsuas |
% |
Maximun kuj tsis sib npaug tsawg dua lossis sib npaug li 5% |
0.87 |
Hla |
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2 |
Kev ntsuas ntsuas |
% |
Qhov sib txawv ntawm qhov sib piv ntawm qhov hluav taws xob ntawm tus thawj coj tapping: Tsawg dua lossis sib npaug li 0.5% Cov cim kev sib txuas: Dyn1 |
-0.06% ~ -0.05% |
Hla |
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3 |
theem- kev xeem sib txheeb |
/ |
Dyn 1 |
Dyn 1 |
Hla |
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4 |
Tsis muaj -load poob thiab excitation tam sim no |
/ |
I0 :: muab ntsuas tus nqi |
0.93% |
Hla |
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P0: muab ntsuas tus nqi (t: 20 degree) |
0.505 kWm |
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qhov kam rau tsis muaj load poob yog +10% |
/ |
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5 |
Load poob impedance voltage thiab efficiency |
/ |
t:85 ua Qhov kam rau ua impedance yog ± 7.5% lub kam rau tag nrho load poob yog +6% |
/ |
Hla |
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Z%: ntsuas tus nqi |
4.21% |
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Pk: ntsuas tus nqi |
3, 443 kWm |
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Pt: ntsuas tus nqi |
3, 948 kWm |
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Kev ua haujlwm tsis tsawg dua 98.94% |
98.98% |
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6 |
Applied Voltage Test |
kV ua |
HV: 40kV 60s LV: 10kV 60s |
Tsis muaj kev sib tsoo ntawm qhov ntsuas hluav taws xob tshwm sim |
Hla |
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7 |
Induced Voltage Withstand Test |
kV ua |
Kev siv hluav taws xob (KV): 2Ur |
Tsis muaj kev sib tsoo ntawm qhov ntsuas hluav taws xob tshwm sim |
Hla |
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Induced voltage (KV): 46 |
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Duration(s): 40 |
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Zaus (HZ): 150 |
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8 |
Kev Xeem Leakage |
kPa ua |
Kev siv siab: 20kPA |
Tsis muaj leakage thiab tsis muaj Kev puas tsuaj |
Hla |
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Duration: 12h |
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9 |
Rwb thaiv tsev Resistance Measurement |
GΩ |
HV-LV to Av: |
5.62 |
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LV-HV to Av: |
5.72 |
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HV & LV rau hauv av: |
3.68 |
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10 |
Roj Dielectric Test |
kV ua |
Ntau dua lossis sib npaug li 45 |
54.86 |
Hla |
04 Packing thiab Shipping
4.1 Ntim
4.2 Shipping
05 Site thiab Summary
Hauv kev lag luam hluav taws xob hloov pauv sai sai, peb -theem ncoo-mounted transformer sawv tawm raws li qhov kev xaiv zoo tshaj plaws rau kev faib hluav taws xob niaj hnub, ua tsaug rau nws qhov tshwj xeeb ua tau zoo thiab kev ntseeg tau. Nws tsis tsuas yog muaj kev nyab xeeb zoo hluav taws xob thiab kev siv hluav taws xob zoo xwb tab sis kuj ua kom lub zog ruaj khov thiab hloov tau yooj yim rau kev xaiv. Txawm hais tias yog rau kev lag luam, kev lag luam, lossis kev siv hauv tsev, peb lub -theem ncoo- mounted transformer muab cov neeg siv nrog siab - cov kev daws teeb meem zoo. Los ntawm kev xaiv peb cov khoom, koj yuav tau txais kev pabcuam zoo, ruaj khov, thiab muaj kev nyab xeeb. Cia peb ua haujlwm ua ke los tsim lub neej yav tom ntej zoo dua!
Cim npe nrov: 250kva pad mounted transformer, chaw tsim tshuaj paus, tsum, nqe, nqi
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