800 KVA Delta Wye Grounded Transformer-34.5/0.48 KV|USA 2025

01 General

1.1 Project Description

800 kVA peb theem ncoo mounted transformer tau xa mus rau Tebchaws Meskas hauv xyoo 2025. Lub zog ntsuas ntawm lub transformer yog 800 kVA nrog KNAN txias. Qhov siab voltage yog 34.5GrdY / 19.92 kV nrog ± 2 * 2.5% tapping ntau yam (NLTC), qhov tsawg voltage yog 0.48 kV, lawv tsim ib pawg vector ntawm YNd1.

Qhov no 800 kVA delta wye grounded transformer yog tsim los ntawm SCOTECH. ua raws liIEEE Std C57.12.34-2022. Tsim los rau peb -theem, 60 Hz underground tis systems, nws nta ib tug thawj voltage ntawm 34.5 kV (grounded wye) thiab ib tug thib ob voltage ntawm 480 V delta, nrog ib tugYNd1pawg vector. Ib qho tseem ceeb tsim nam yogcais tawm H0 (tsis suav) bushingntawm qhov siab -voltage sab, uas ua rau yooj yim rau kev siv hauv av thiab ua kom yooj yim rau kev sib koom ua ke hauv network.

Lub delta wye grounded transformer txais yuavKNANraws li nws txoj kev txias, sivFR3 natural ester kuaraws li ob qho tib si dielectric thiab txias nruab nrab. Qhov kev sib xyaw ua ke no muab cov khoom siv hluav taws xob txhim khu kev qha thaum muab kev nyab xeeb hluav taws zoo dua qub thiab cov txiaj ntsig ib puag ncig piv rau cov roj ntxhia cov pa. Rau thawj - sab overcurrent tiv thaiv, chav tsev yog nruab nrogsiab -zoo Cooper (Eaton)bayonet fuses thiab tam sim no - txwv cov fuses thaub qab, kom ntseeg tau tias muaj txiaj ntsig zoo thiab kev tiv thaiv zoo rau cov khoom siv hauv qab.

Tsis tas li ntawd, qhov no transformerua tau raws li US Department of Energy (DOE) cov qauv kev ua haujlwm, ua kom muaj kev ua raws li tsoomfwv cov cai tswjfwm hluav taws xob thiab xa cov khoom tsis muaj zog thiab kev poob qis, uas txhais tau hais tias txo cov nqi hluav taws xob ua haujlwm. Tsim nyog rau thaj chaw nyob, chaw ua lag luam, thiab chaw ua lag luam, lub ncoo no - mounted transformer sib txuas cov hluav taws xob ua tau zoo, cov khoom pov thawj tiv thaiv, thiab lub zog - ua haujlwm tau zoo hauv kev cog lus, sab nraum zoov - npaj txhij.

1.2 Technical Specification

800 kVA delta wye grounded transformer specifications hom thiab cov ntaub ntawv ntawv

1.3 Cov duab kos

800 kVA delta wye grounded transformer daim duab kos duab thiab loj.

02 Kev tsim khoom

2.1 Core

Cov tub ntxhais yog tsim nrog siab -permeability, qis- poob txias- dov nplej- taw qhia silicon steel hauv peb- ceg teeb tsa uas ua kom zoo rau txoj kev sib nqus. Tom qab automated stacking thiab lub tshuab nqus tsev annealing, qhov ntsuas tsis-load poob tsuas yog 0.992 kW ntawm 20 degree, zoo dua qhov lav tus nqi ntawm 1.1 kW, thiab ua raws li IEEE C57.12.00-2021 thiab C57.12.34-2022. Cov txiaj ntsig ruaj khov thiab zoo ib yam los ntawm qhov tsis muaj qhov poob thiab qhov kev sim siab tam sim no tau lees paub tias muaj kev tsim hluav taws xob zoo sib nqus thiab kev tsim khoom zoo sib xws. Step-lap stacking thiab nruj flux ceev tswj pab kom ob qho tib si poob thiab suab nrov tsawg.

2.2 Cua txias

Ob qho tib si high-voltage thiab low-voltage windings yog ua los ntawm tooj liab thiab teem nyob rau hauv ib pawg YNd1 vector, nrog rau H0 bushing coj tawm cais kom yooj yim nruab nrab hauv av. Qhov sib txawv ntawm qhov sib txawv yog nyob nruab nrab ntawm -0.03% thiab 0.04%, zoo nyob rau hauv qhov tsawg dua lossis sib npaug li 0.5% txwv, thiab qhov siab tshaj plaws tiv thaiv tsis sib npaug ntawm LV sab tsuas yog 3.24%, cuam tshuam ncaj qha tig thiab tswj nruj. Tag nrho qhov sib piv, theem-kev sib raug zoo thiab kev ntsuas kev tiv thaiv hluav taws xob ua rau IEEE C57.12.90-2021 tau dhau los - HV-LV rau hauv av rwb thaiv tsev tiv thaiv mus txog 3.45 GΩ. Tsis siv neeg nro tswj thiab inter-layer rwb thaiv tsev nias thaum winding kom zoo ib yam thiab dielectric zog ntawm lem thiab txheej.

2.3 Tank

Lub tank yog tsim los ntawm high-strength steel nrog corrosion-resistant txheej haum rau sab nraum zoov pad-mounted ib puag ncig. Nws dhau 24-teev kev ntsuas siab zoo li qub ntawm 20 kPa yam tsis muaj qhov xau los yog hloov pauv mus tas li, ua kom tiav IEEE C57.12.90-2021. Qhov no txheeb xyuas qhov zoo ntawm cov welds thiab flange seals. Automated vuam, 100% kev soj ntsuam lub teeb pom kev zoo, thiab kev ntsuam xyuas ua ntej xa khoom tuaj yeem lav tias tsis muaj roj to lossis rwb thaiv tsev degradation yuav tshwm sim nyob rau lub sijhawm ntev.

2.4 Kev sib dhos zaum kawg

Kev sib dhos zaum kawg yog nqa tawm hauv chav huv; FR3 insulating roj yog nqus-kho thiab lim ua ntej sau, thiab cov txheej txheem txias yog KNAN. Qhov ntsuas qhov ntsuas - 800 kVA / 34.5 kV / 480 V / 60 Hz - raws nraim qhov tsim, thiab cov transformer tiav ua raws li IEEE C57.12.34-2022. Tom qab sib dhos, cov rwb thaiv tsev tiv thaiv (HV-LV rau hauv av) ntsuas 3.45 GΩ, deb tshaj qhov kev nyab xeeb. Cov ntsiab lus tseem ceeb raug kuaj xyuas thaum sib dhos, kev kho roj yog saib xyuas lub sijhawm tiag tiag rau cov ntsiab lus noo noo thiab lub zog dielectric, thiab cov qauv ua ntej sib dhos ua ke nrog kev tswj xyuas chav huv kom zoo tiv thaiv kev sib kis, ua kom muaj kev ruaj ntseg ntev ntev.

03 Kev Xeem

Txhua qhov kev ntsuam xyuas niaj hnub ua rau IEEE C57.12.90-2021 muab cov txiaj ntsig zoo: tsis muaj kev thauj khoom poob 0.992 kW, thauj khoom poob ntawm 85℃5.345 kW (ob qho tib si zoo dua li cov txiaj ntsig tau lees paub), luv-circuit impedance 5.64% (nyob rau hauv ± 9.5% efficiency), thiab 9.5% efficiency 99.40% xav tau thiab ua tau raws li DOE cov qauv kev ua haujlwm zoo). Cov ntawv thov tiv thaiv kev sim (LV sab 10 kV / 60 s) thiab kev ntsuas hluav taws xob (HV sab 69 kV / 48 s) pom tsis muaj kev puas tsuaj, thiab tsis muaj kev tiv thaiv kev tiv thaiv lossis kev ntsuas 24-teev foob tsis pom qhov txawv txav. Tag nrho cov kev ntsuam xyuas dhau los ntawm thawj qhov kev khiav, ua kom pom qhov muaj kev ntseeg tau zoo hauv ob qho tib si hluav taws xob thiab kev ua haujlwm txhua yam.

04 Packing thiab Shipping

4.1 Ntim

Lub delta wye grounded transformer yog ntim rau hauv ib lub zog ntoo lossis steel thav duab nrog cov khoom poob siab sab hauv, thiab tag nrho cov terminals raug tiv thaiv los ntawm ya raws thiab plua plav. Sab nraud ntawm lub pob yog qhia meej meej nrog cov qauv, qhov hnyav, thiab cov lus qhia tuav, thiab cov ntim tau raws li kev tiv thaiv kev tiv thaiv kev thauj mus los hauv hiav txwv thiab av. Ua ntej packing, txhua lub transformer tau txais qhov kawg tu thiab zawm check; lub ntim tsim tau raug pov thawj los ntawm kev poob thiab kev co simulation kev sim kom lub tsev nyob ruaj khov thaum lub sij hawm thauj mus los ntev. Rau kev txiav txim xa tawm, ISPM-15 ua raws li cov ntaub ntawv ntim khoom hauv eco-friendly tuaj yeem muab.

4.2 Shipping

Lub transformer yog xa los ntawm peb lub Hoobkas hauv Jiangshan, Zhejiang, thiab tuaj yeem xa los ntawm hiav txwv lossis av. Peb muab tag nrho cov ntaub ntawv xa tawm, suav nrog cov ntawv pov thawj kev lis kev cai thiab daim ntawv pov thawj ntawm keeb kwm. Nrog xyoo dhau los ntawm kev xa tawm pad-mounted transformers rau North America, peb tuaj yeem hloov kho kev thauj mus los raws li koj qhov project. Kev simulated thauj vibration test yog ua ua ntej xa khoom xa tuaj, kev tuav pov hwm kev lag luam yog npaj, thiab GPS taug qab muaj nyob thoob plaws txoj kev taug. Cov txheej txheem logistics tus txheej txheem ua kom luv lub sij hawm coj mus kuaj thiab txo qhov kev pheej hmoo ntawm kev puas tsuaj hauv kev thauj mus los.

05 Site thiab Summary

Ntawm SCOTECH, peb lub ncoo-mounted transformers xa cov kev ntseeg siab thiab kev ua haujlwm zoo rau cov khoom siv hluav taws xob niaj hnub. Engineered nrog tag nrho kaw, corrosion- tiv thaiv enclosure thiab qib siab qis- poob cores, lawv ua kom tsis tu ncua, txij nkawm- kev ua haujlwm zoo uas txo qis tag nrho cov tswv cuab thiab ua kom lub sijhawm ua haujlwm ntev. Txhua chav qhia txog peb txoj kev cog lus rau qhov tseeb thiab kev hloov pauv, muab cov kev ntsuas ntsuas hluav taws xob zoo, txhim kho kev nyab xeeb, thiab kev ruaj ntseg zoo. Rov qab los ntawm kev teb tom qab- kev txhawb nqa muag, peb cov transformers tsis yog tsuas yog ua tau raws li tab sis redefine kev lag luam benchmarks. Cia siab rau SCOTECH los tsim kom muaj kev tiv thaiv thiab kev ua haujlwm ntawm koj qhov kev tsim kho tseem ceeb tsim nyog.