Jiangshan Scotech Hluav Taws Xob Co., Ltd.
750 KVA Cooper Substation Transformer-34.5 / 0.48 KV|Nicaragua 2026
Peev xwm: 750 kVA
Qhov hluav taws xob: 34.5 / 0.48 kV
Feature: 99.15% efficiency
Jiangshan Scotech Hluav Taws Xob Co., Ltd yog ib qho ntawm feem txhim khu kev qha manufacturers thiab lwm tus neeg ntawm 750 kva cooper substation transformer -34.5/0.48 kv|Nicaragua 2026 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.
Unit Substation Transformer - compact integration, qhov kawg kev ntseeg siab, los ntawm kab sib chaws mus rau thauj khoom hauv ib kauj ruam.
01 General
1.1 Project Description
750 kVA chav tsev substation transformer raug xa mus rau Nicaragua xyoo 2026. Lub zog ntsuas ntawm lub transformer yog 750 kVA nrog KNAN txias. Qhov siab voltage yog 34.5 kV nrog ± 2 * 2.5% tapping ntau yam (NLTC), qhov tsawg voltage yog 0.48 kV, lawv tsim ib pawg vector ntawm Dyn11.
Qhov kev hloov pauv no yog ib feem ntawm La India kub ua cov phiaj xwm, nyob rau sab hnub poob foothills ntawm Nicaragua lub hauv paus highlands, kwv yees li 70km qaum teb ntawm Managua ntawm qhov siab ntawm 406 meters saum hiav txwv theem. Lub vev xaib nthuav tawm qhov nyuaj ib puag ncig: qhov kub thiab txias ntawm thaj tsam ntawm 17.5 txog 32.8 degree, nrog cov av noo ntawm kwv yees li ntawm 79% thaum Lub Rau Hli thiab cov dej nag txhua xyoo nce mus txog 1,239mm.
Tus neeg siv khoom xav tau lub tshuab hloov pauv muaj peev xwm ntawm 24/7/365 kev ua haujlwm tas mus li nrog lub neej tsim 25 xyoo, ua raws li cov qauv seismic RNC 07 thiab ASCE7 22/IBC2024, thaum ua haujlwm nyob rau hauv ib puag ncig uas muaj cov kab mob paug plua plav ntau heev - qhov twg tsis tso dej ntxuav cov khoom siv hluav taws xob.
SCOTECH tsim no 750kVA chav tsev substation transformer tshwj xeeb rau cov kev xav tau ntawm qhov chaw. Lub enclosure yog tsim rau sab nraum zoov ncoo mounted installation, nrog cua txias thiab rwb thaiv tsev systems optimized rau kub thiab av noo. Kev siv FR3 natural ester kua-dawb ntawm PCBs thiab ib puag ncig muaj kev nyab xeeb- xa qhov hluav taws kub siab (Ntau dua lossis sib npaug li 300 degree) thiab kev tiv thaiv zoo dua noo noo, tseem ceeb rau kev ntseeg tau ntev hauv cov huab cua sov. Lub tshuab hloov pauv tau nruab nrog cov roj ntsuas kub, cov cuab yeej siv hluav taws xob siab, roj relay, thiab cov khoom siv saib xyuas dav dav los txhawb kev saib xyuas kev ua haujlwm dawb ntawm kev teem sijhawm kaw. Nws txoj kev tsim kho muaj zog thiab kev tsim qauv seismic ua kom muaj kev ruaj ntseg thoob plaws hauv txoj haujlwm 25 xyoo kev ua haujlwm.
Qhov project no yog lwm qhov tseem ceeb hauv SCOTECH qhov loj hlob nyob rau hauv Central America cov mining thiab industrial sectors. Chav tsev 750kVA yuav muab lub zog hloov pauv hloov pauv hloov pauv rau kev ua cov nroj tsuag kev faib tawm, ua rau lub chaw ua haujlwm tag nrho. Tus neeg siv qhov project no kuj tau tso qhov kev txiav txim rau lwm qhov 2500kVA 34.5 / 0.48kV unit substation transformer.
1.2 Technical Specification
750 kVA chav tsev substation transformer specifications hom thiab cov ntaub ntawv ntawv
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Xa rau
Nicaragua
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Xyoo
2026
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Hom
chav tsev substation transformer
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Txuj
IEEE C57.12.36-2007
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Rated zog
750 kVA ua
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Ntau zaus
60 tzs
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Theem
3
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Hom cua txias
KNAN
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Thawj Voltage
34,5kv :ua
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Secondary Voltage
0 ,48kv
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Cov khoom siv winding
Tooj
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Vector Group
Dyn 11
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Impedance
5.75%
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Kev ua tau zoo
99.15%
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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
1.3 kW tsi
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Ntawm Load Loss
8.46 kWm ua
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1.3 Cov duab kos
750 kVA chav tsev substation transformer daim duab kos duab thiab loj.
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02 Kev tsim khoom
2.1 Tank
Lub tank yog tsim los ntawm siab - lub zog steel nrog tag nrho - kev nkag mus vuam kom ntseeg tau tias tsis muaj dej txaus- nruj nyob rau hauv txhua qhov kev ua haujlwm. Tsim tshwj xeeb rau La Is Nrias teb qhov chaw thaj chaw kub thiab muaj xyoob ntoo, lub tank suav nrog hnyav- lub luag haujlwm corrosion- cov txheej txheem tiv thaiv kom tiv taus 79% cov av noo, txhua xyoo los nag ntawm 1,239 mm, thiab kub txog 32.8 degree. Nws txoj kev tsim kho muaj zog ua tau raws li qhov yuav tsum tau muaj seismic raws li RNC 07 thiab ASCE7 22/IBC2024, ua kom muaj kev ncaj ncees ntawm cov qauv thaum muaj xwm txheej seismic. Lub kaw lus kaw kuj tseem tiv thaiv cov khoom siv sab hauv los ntawm qhov chaw ntawm cov kab mob uas muaj plua plav, tshem tawm qhov xav tau rau kev ntxuav dej ntawm cov khoom siv hluav taws xob. Tag nrho cov bushings (HV, LV, thiab nruab nrab) yog sab mounted rau yooj yim cable nkag thaum tuav lub tank tiv thaiv kev ncaj ncees.
2.2 HV / LV Cable Box
Lub transformer yog nruab nrog siab siab -voltage thiab low-voltage cable thawv, muab cov ntsiab lus ruaj ntseg thiab huab cua tsis zoo rau cov hluav taws xob nkag thiab tawm. Lub thawv HV cable yog tsim los rau kev txiav tawm ntawm 34.5 kV cables, thaum lub LV cable lub thawv haum rau 0.48 kV kev sib txuas, txhua tus muaj kev tsim kho kom ntseeg tau tias muaj kev ruaj ntseg hluav taws xob clearance thiab creepage nrug. Ob lub thawv cable yog cua- puv, hlau- cov ntaub thaiv npog uas ua kom yooj yim rau kev txiav cable thiab tu. Cov phaj hauv qab yog detachable kom yooj yim rau cable nkag thiab txiav ua hauj lwm ntawm -site.
2.3 Huab cua
Lub tshuab nqus dej nqus dej yog txuas nrog cov roj khaws cia, ntim nrog silica gel desiccant los tiv thaiv cov dej noo thiab cov kab mob los ntawm kev nkag mus rau cov roj khaws cia. Raws li cov roj transformer nthuav dav thiab cog lus nrog qhov kub thiab txias, tus neeg saib xyuas ua pa tawm hauv thiab tawm los ntawm lub tshuab nqus pa. Lub silica gel absorbs noo noo los ntawm huab cua tuaj, hloov xim ntawm xiav mus rau xim liab thaum nws dhau los ua saturated - muab qhov taw qhia pom tseeb rau cov neeg ua haujlwm tu. Qhov no yooj yim tab sis siv tau zoo khaws cov roj zoo, qeeb oxidation, thiab txuas ntxiv lub neej kev pab cuam ntawm lub rwb thaiv tsev.
2.4 Gas Relay (Buchholz Relay)
Cov pa roj- actuated Buchholz relay yog ntsia rau hauv cov yeeb nkab sib txuas ntawm lub tank loj thiab cov roj khaws cia, ua haujlwm tiv thaiv kev nyab xeeb tseem ceeb rau lub tshuab hloov pauv. Lub relay muab ob-theem tiv thaiv: nyob rau hauv cov xwm txheej ntawm incipient faults xws li localized overheating los yog ib feem ntawm paug, gas npuas nyob rau hauv lub relay chamber, ua rau lub tswb ceeb toom. Nyob rau hauv cov ntaub ntawv ntawm kev txhaum loj heev nyob rau hauv -xws li arcing los yog luv luv circuits - ib tug ceev cov roj surge cuam tshuam lub relay lub baffle phaj, activating lub mus ncig teb chaws Circuit Court disconnect lub transformer los ntawm cov khoom. Lub relay kuj tseem teeb liab teeb liab yog tias cov roj theem poob vim qhov xau. Qhov kev tiv thaiv dual no ua kom pom qhov ua txhaum thaum ntxov thiab tiv thaiv kev puas tsuaj rau cov khoom siv tsis ua haujlwm.
2.5 Roj Conservator
Cov roj conservator yog lub nkoj cylindrical mounted saum lub transformer thiab txuas nrog lub ntsiab tank ntawm cov yeeb nkab. Nws lub luag haujlwm tseem ceeb yog kom haum rau thermal expansion thiab contraction ntawm cov roj insulating raws li qhov kub thiab txias hloov thaum lub sijhawm ua haujlwm. Los ntawm kev muab qhov chaw ntxiv rau cov roj ntim hloov pauv, tus neeg saib xyuas tiv thaiv kev tsim siab ntau dhau uas tuaj yeem ua rau lub tank tawg, nrog rau lub tshuab nqus tsev uas tuaj yeem ua rau nws tawg. Tus neeg saib xyuas kom ntseeg tau tias lub tank loj tseem muaj cov roj insulating tag nrho txhua lub sijhawm, tiv thaiv kev sib kis ntawm cov cua thiab cov tub ntxhais rau huab cua- uas tuaj yeem cuam tshuam kev ntseeg ruaj khov. Tsis tas li ntawd, nws ua rau kev ua haujlwm ruaj khov ntawm Buchholz relay thiab ua kom yooj yim txij nkawm xws li kev saib xyuas qib roj thiab rov ua dua. Qhov taw qhia qib roj nrog lub tswb thiab cov neeg mus ncig ua si yog haum rau ntawm tus neeg saib xyuas rau kev saib xyuas qib txuas ntxiv.
2.6 Terminal Thawv
Lub thawv davhlau ya nyob twg yog muab rau vaj tse thiab tiv thaiv tag nrho cov cuab yeej txuas txuas. Qhov no enclosure consolidates theem nrab thaiv los ntawm tam sim no transformers, relays, roj theem gauges, thiab lwm yam kev soj ntsuam pab kiag li lawm rau hauv ib tug centralized, nkag mus rau hauv qhov chaw. Lub thawv davhlau ya nyob twg nta qib siab - qib davhlau ya nyob twg thaiv kom ruaj khov thiab ua haujlwm tau zoo, ua kom ntseeg tau cov teeb liab sib kis tau yooj yim thiab yooj yim rau kev xaim hluav taws xob.
2.7 Tam sim no Transformer Outlet Box
Lub thawv hluav taws xob tam sim no (CT) qhov hluav taws xob tau teeb tsa rau hauv tsev txuas txuas ntxiv ntawm cov tam sim no transformers siv rau kev ntsuas qhov kub thiab txias. Cov ntaub thaiv npog no muab cov ntsiab lus txiav tawm rau CT thib ob circuits, tiv thaiv kev sib txuas los ntawm ib puag ncig raug thaum txhawb kev saib xyuas thiab kev sim. Lub CT qhov hluav taws xob lub thawv yog tsim los ntawm cov khoom siv ruaj khov nrog corrosion- tiv thaiv tiav kom ntseeg tau ntev - lub sij hawm cia siab rau hauv kev teeb tsa sab nraum zoov.
2.8 Zero Phase Bushing (Neutral Bushing)
Lub nruab nrab bushing yog mounted rau sab ntawm lub tank, muab ib tug tshwj xeeb termination point rau transformer qhov nruab nrab kev twb kev txuas. Lub bushing yog tsim los ua kom haum raws li LV system grounding yuav tsum tau ua raws li qhov project cov qauv tsim hluav taws xob, kom ntseeg tau tias qhov system earthing thiab txhaum txoj kev tam sim no.
2.9 Lub Radiator
Plaub lub radiators yog haum rau lub tank transformer raws li thawj cov khoom cua txias rau cua sov dissipation. Cov radiators muaj ib tug series ntawm fins los yog cov hlab uas ua rau kom qhov chaw saum npoo av muaj rau kev hloov mus rau tshav kub ntawm cov roj kub insulating thiab cov huab cua ib puag ncig. Raws li cov roj rhuab tau nce los ntawm cov tub ntxhais transformer thiab windings, nws ntws mus rau hauv lub tshuab hluav taws xob uas nws tso cua sov rau hauv qhov chaw thiab rov qab mus rau lub tank ntawm qhov kub thiab txias - ua tiav cov roj yam tsis tas yuav tsum tau twj tso kua mis (KNAN txias). Qhov kev ua kom txias txias no ua kom lub tshuab hluav taws xob tswj xyuas qhov kub thiab txias ua haujlwm tsis tu ncua -load ua haujlwm nyob rau hauv huab cua sov ntawm La India qhov chaw, qhov twg qhov kub thiab txias tuaj yeem ncav cuag 32.8 degree.
03 Kev Xeem
Txhua lub SCOTECH transformer tau dhau los ua qhov kev kuaj xyuas lub Hoobkas ua ntej xa khoom, ua raws li IEEE C57.12.00-2021 thiab IEEE C57.12.90-2021 tus qauv. Rau qhov 750kVA chav tsev no, cov kev ntsuam xyuas niaj hnub no tau ua thiab sau tseg:
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Cov khoom kuaj |
Kev xav tau |
Ntsuas tus nqi |
Kev tshwm sim |
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Winding Resistance |
Max unbalance Tsawg dua lossis sib npaug li 4.45% |
4.45% |
Hla |
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Qhov Voltage Ratio |
Deviation Tsawg dua lossis sib npaug li 0.5% |
-0.02% |
Hla |
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Theem kev sib raug zoo |
Dyn 11 |
Dyn 11 |
Hla |
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Tsis muaj -Load Poob |
+10% kam rau ua |
1,293 W |
Hla |
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Load poob (85 degree) |
+6% kam rau ua |
8,282 W |
Hla |
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Qhov voltage impedance |
± 7.5% kam rau ua |
5.80% |
Hla |
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Kev ua tau zoo |
Ntau dua lossis sib npaug li 99.15% |
99.16% |
Hla |
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Applied Voltage (HV) |
80 kV / 60s |
Tsis muaj kev tawg |
Hla |
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Kev siv hluav taws xob (LV) |
10 kV / 60s |
Tsis muaj kev tawg |
Hla |
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Induced voltage |
69 kV / 48s / 150Hz |
Tsis muaj kev tawg |
Hla |
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Kev Xeem Leakage |
50 kPa / 24 teev |
Tsis muaj dej paug |
Hla |
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Rwb thaiv tsev Resistance |
- |
2.02–3.37 GΩ |
- |
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Roj Dielectric |
Ntau tshaj lossis sib npaug li 45 kV |
62,45 kv :ua |
Hla |
Cov kev ntsuam xyuas niaj hnub no tau lees paub tias qhov kev hloov pauv tshwj xeeb no tau tsim kom raug, phim nws cov ntawv ntsuas, thiab tsis muaj kev tsim khoom yuam kev. Daim ntawv qhia ntxaws ntxaws yog muab rau txhua chav tsev, muab cov ntaub ntawv ua tiav thiab pob tshab ntawm txhua qhov ntsuas ntsuas thiab cov txiaj ntsig kev ntsuas.
04 Packing thiab Shipping
4.1 Ntim
4.2 Shipping
05 Site thiab Summary
Lub tshuab hluav taws xob no tau ua tiav tiav, lub Hoobkas sim, thiab xa mus rau La India kub ua haujlwm cog hauv Nicaragua. Txhua qhov kev ntsuam xyuas niaj hnub tau ua raws li IEEE cov qauv thiab tau ua pov thawj los ntawm cov neeg soj ntsuam ywj pheej, nrog rau cov txiaj ntsig tau lees paub tag nrho kev ua raws li cov lus pom zoo tau lees paub- suav nrog kev ua tau zoo ntawm 99.16%, impedance ntawm 5.80%, thiab tsis muaj -load poob ntawm 1,293 W. Thaum lub installation thiab commissioning ntawm 70land Central qhov chaw no chav tsev yuav muaj kev ntseeg siab nyob rau hauv cheeb tsam huab cua sov, nrog rau qhov kub thiab txias mus txog 32.8 degree, txheeb ze av noo mus txog 79%, thiab dej nag txhua xyoo ntawm 1,239 mm. Tsim los rau 24/7/365 kev khiav hauj lwm tas mus li thiab 25- xyoo kev pab cuam lub neej, lub transformer sawv raws li ib tug ua pov thawj rau SCOTECH qhov zoo tshaj plaws engineering thiab peb unwavering cog lus rau xa muaj kev nyab xeeb, txhim khu kev qha, thiab high-kev ua tau zoo zog daws teeb meem rau lub ntiaj teb no mining thiab industrial sectors.
Cim npe nrov: 750 kva cooper substation transformer-34.5/0.48 kv|nicaragua 2026, Tuam Tshoj 750 kva cooper substation transformer-34.5/0.48 kv|Nicaragua 2026 manufacturers, lwm tus neeg, Hoobkas
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