1250 KVA Peb-theem Pad-mounted Transformer-4.16*12.47/0.48 KV|USA 2025

01 General

1.1 Project Description

1250 kVA peb-theem ncoo-mounted transformer tau xa mus rau Tebchaws Meskas hauv xyoo 2025. Lub zog ntsuas ntawm lub transformer yog 1250 kVA nrog KNAN txias, lawv tsim ib pawg vector ntawm Dyn1.

Qhov peb no -theem ncoo-mounted transformer yog radial- pub kua- puv tsev engineered rau kev xaav hauv av. Nws nta dual siab -voltage ntsuam xyuas ntawm4.16 kV thiab 12.47 kV(nrog rau 2A2B * ± 2.5% de-energized kais hloov), muab qhov yooj yim kom haum raws qib theem pib sib txawv. Qhov qis-voltage sab yog ntsuas480Y/277Vnrog rau 30 kV BIL, thiab lub transformer impedance yog teem rau5.75% (±7.5%).

Txhawm rau ua kom tau raws li cov kev xav tau niaj hnub ua haujlwm, lub tsev ua raws liTSI 2016cov qauv, ua tiav99.46% efficiencyntawm 50% load thiab 55℃siv kub. Rau superior corrosion kuj nyob rau hauv kev xav tau ib puag ncig, lub tank thiab tag nrho cov khoom siv sab nraud yog tiav nrog aC5Mhnyav-lub luag haujlwm xim txheej txheem (Munsell 7GY3.29/1.5 ntsuab), kom ntseeg tau ntev -lub sij hawm durability.

Daim ntawv thov teb

• Muaj chaw ua si thiab chaw tsim khoom- qhov twg siab load xav tau thiab hloov tau yooj yim rau qhov sib txawv thawj voltages (4.16 kV lossis 12.47 kV) yuav tsum tau.
• Commercial complexes thiab loj pej xeem vaj tse- xws li cov khw muag khoom, tsev kho mob, tsev kawm ntawv, thiab cov chaw khaws ntaub ntawv, tau txais txiaj ntsig los ntawm kev poob qis (DOE 2016) thiab ntev - kev ntseeg tau ntev.
• Kev faib khoom siv hluav taws xob- rau hauv av ncoo-mounted substations, tshwj xeeb tshaj yog nyob rau yav tom ntej voltage hloov dua siab tshiab los yog dual-voltage mov yuav tsum tau.
• Ntug hiav txwv thiab ib puag ncig corrosive heev- suav nrog cov chaw nres nkoj, cov nroj tsuag tshuaj, thiab cov chaw khaws ntaub ntawv onshore rau offshore cua ua liaj ua teb, qhov twg C5M xim txheej txheem muab kev tiv thaiv zoo rau ntsev tsuag, av noo, thiab muaj kuab paug.
• Renewable zog tej yaam num- xws li loj - nplai PV nroj tsuag lossis roj teeb lub zog cia, yuav tsum tau 480Y / 277V ob sab kev sib txuas thiab muaj zog sab nraum zoov.

1.2 Technical Specification

1250 kVA peb-theem ncoo-mounted transformer specifications hom thiab cov ntaub ntawv ntawv

1.3 Cov duab kos

1250 kVA peb-theem ncoo-mounted transformer daim duab kos duab thiab loj.

02 Kev tsim khoom

2.1 Core

Cov tub ntxhais siv high -permeability grain- taw qhia silicon steel nrog cov kauj ruam- lap joints kom ua tiav qhov tsis muaj -load poob ntawm tsuas yog 1.35 kW, zoo hauv qab DOE 2016 txwv ntawm 1.485 kW. Qhov kev tsim no zoo tagnrho rau lub zog- cov ntawv thov nkag siab xws li cov chaw khaws ntaub ntawv thiab cov tsev lag luam. Qhov kev ntsuas sib nqus sib nqus tau lees paub qhov sib txawv ntawm cov flux faib tsis muaj qhov tsis xws luag, thiab rwb thaiv tsev los ntawm cov tub ntxhais mus rau thav duab tshaj 18 GΩ. Manufacturing muaj xws li tsis siv neeg stacking thiab nruj sib txawv tswj.Qhov tseem ceeb:Tsawg-cov tub ntxhais poob raws li DOE 2016 thiab IEEE C57.12.34-2022.

2.2 Cua txias

Aluminium windings yog configured rau dual high voltage (4.16 kV / 12.47 kV, Dyn1) nrog ib tug ± 2 × 2.5% de-energized kais changer, muab zoo heev daim phiaj yooj. Qhov sib txawv ntawm qhov hluav taws xob tau ntsuas tsuas yog -0.12% (zoo hauv ± 0.5%), thiab HV winding kuj tsis sib npaug tsawg dua lossis sib npaug li 0.16%. xob laim impulse thiab induced voltage tiv thaiv kev ntsuam xyuas (2 × voltage, 150 Hz) dhau yam tsis muaj kev puas tsuaj. Tag nrho cov windings yog CNC qhov txhab thiab 100% kuaj rau tig-rau-tig rwb thaiv tsev.Qhov tseem ceeb:Kev ntsuam xyuas dual HV + meej kais hloov pauv, ua raws li IEEE C57.12.34-2022.

2.3 Tank

Lub welded MS steel tank yog coated nrog ib tug C5M hnyav-lub luag hauj lwm xim system (Munsell 7GY3.29/1.5 ntsuab), muab ntau tshaj 20 xyoo ntawm corrosion tiv thaiv rau ntug hiav txwv dej thiab kev lag luam ib puag ncig. Nyob rau hauv lub tshuab nqus tsev ntawm -67 kPa, qhov siab tshaj plaws deformation tsuas yog 0.04 hli, thiab kev ntsuas 24-teev siab ntawm 20 kPa pom xoom xoom. Tank tsim muaj xws li 100% kerosene leak check thiab moj tej tawg tu rau Sa2.5.Qhov tseem ceeb:C5M txheej + tag nrho ntim welded npog - tsis muaj gasket, tsis muaj dej.

2.4 Kev sib dhos zaum kawg

Lub transformer yog sib sau ua ke nrog ONAN txias, ntxhia roj, thiab tag nrho cov yuav tsum tau accessories: siab nyem valve (50 SCFM), kua theem ntsuas nrog cov neeg, tus pas ntsuas kub nrog hu, HV hloov pauv hloov, hauv av pads, handhole, thiab lifting / jacking kev cai. Dissolved gas analysis (DGA) ua ntej thiab tom qab kuaj pom zero acetylene thiab ib txwm tag nrho cov hydrocarbons, paub meej tias tsis muaj paug los yog overheating. Lub tshuab nqus tsev roj filling khaws cov dej noo qis dua 20 mg / kg.Qhov tseem ceeb:Modular accessories thiab X0 nruab nrab hauv av pluaj rau kev teeb tsa yooj yim.

03 Kev Xeem

All tests follow IEEE C57.12.90-2021. Key results: insulation resistance >20 GΩ; qhov sib txawv -0.12%; tsis-load poob 1.35 kW; load poob 9.05 kW; impedance sib txawv<0.5%; magnetic balance symmetrical; applied voltage (AV) and induced voltage (IVW) passed; lightning impulse passed; top oil and winding temperature rise ≤55K; vacuum deformation ≤0.04 mm; pressure sealing no leak; DGA normal. Every result meets or exceeds DOE 2016 and IEEE C57.12.34-2022 requirements. Complete test reports are archived with serial number 260110 for full traceability.

04 Packing thiab Shipping

4.1 Ntim

Peb -theem ncoo- mounted transformer yog mounted rau ntawm ib tug tsim steel puag nrog diav rawg hnab ris, rub, jacking, thiab dov cov kev cai. Nws yog them nrog hnyav-cov dej num polyethylene tarpaulin, haum nrog lub kaum ntse ntse tiv thaiv, thiab xa nrog lub thawv ntim khoom ntim ntoo uas muaj bolts, gaskets, thiab phau ntawv. Lub ntim ua tau raws li ISTA 3E thiab ISPM 15 tus qauv, ua kom muaj kev nyab xeeb hauv hiav txwv thiab av.

4.2 Shipping

Peb -theem ncoo- mounted transformer yog xa cov roj puv (cov roj ntxhia nyob rau theem ib txwm muaj) nrog txhua qhov valve kaw; muaj ib daim pam nitrogen ntawm 20 kPa. Txhua qhov khoom xa tuaj suav nrog cov ntaub ntawv ua tiav: daim ntawv tshaj tawm hauv lub Hoobkas, phau ntawv qhia kev teeb tsa, daim duab kos duab, thiab cov npe ntim khoom. Kev tiv thaiv xeb yog siv rau cov khoom siv los tiv thaiv, thiab xaiv qhov kev poob siab / lub kaw lus tuaj yeem ntsia tau rau cov kev rhiab heev.

05 Cov ntsiab lus

Qhov no 1250kVA peb-theem ncoo-mounted transformer ua keDOE 2016 efficiency(99.46% ntawm 50% load),C5M hnyav-lub luag haujlwm tiv thaiv corrosion, thiabdual siab -voltage muaj peev xwm(4.16 / 12.47 kV). Nws ua tiav raws li IEEE C57.12.34-2022, dhau txhua qhov niaj hnub thiab hom kev xeem nrog cov txiaj ntsig zoo dua, thiab tsim nrog kev tsim khoom zoo. Qhov zoo tshaj plaws rau kev faib tawm sab nraum zoov hauv ib puag ncig hnyav, cov chaw khaws ntaub ntawv, EV charging chaw nres tsheb, thiab cov chaw ua si.