High and Low Voltage Wiring Standard for 1500 kVA Qhuav Hom Transformer Installation

Raws li ib tug premier qhuav hom transformer chaw tsim tshuaj paus nrog ntau tshaj 18 xyoo ntawm kev ua teb, GNEE nkag siab hais tias kev nyab xeeb, mus sij hawm ntev kev ua hauj lwm pib ua ntej lub tsev yuav puas energized. Kev ua tiav ib qho kev txhim kho txhim khu kev qha nyob ncaj qha rau kev paub txog covHigh thiab tsawg voltage thaiv txheej txheem rau 1500 kVA qhuav hom transformertej yaam num.

 

Peb lub Hoobkas muab tag nrho hom-kuaj 1500 kVA qhuav hom hloov pauv thoob ntiaj teb, thiab peb muab cov lus qhia siv cov hlua hluav taws xob no los pab cov kws tsim khoom, cov neeg cog lus, thiab cov neeg siv kawg ua tiav qhov tsis zoo, kev sib raug zoo txhua lub sijhawm.

 

Hu rau GNEE hnub no rau kev sib tham txog kev xaim hluav taws xob lossis kev cai transformer hais.

 

GNEE Hoobkas rhiav

 

 

Ua ntej txhua lub cable raug rub, nws yog ib qho tseem ceeb kom paub tias vim li cas cov txheej txheem xaim muaj nyob. Cov qauv hluav taws xob siab thiab qis qis rau 1500 kVA qhuav hom transformer installation tsis yog ib daim ntawv tab sis kev sib txuas ntawm IEC 60076-11, IEEE C57.12.01, cov lej hluav taws xob hauv zos, thiab cov chaw tsim khoom tshwj xeeb. Cov qauv no tswj hwm tus neeg xyuas pib qhov loj me, qhov sib txawv ntawm qhov sib txawv, qhov kev txiav tawm torque, nruab nrab hauv av, thiab kev sib txuas ntawm lub qhov rooj.

 

Tsis quav ntsej cov cai no, txawm tias nyob rau sab qis-voltage qhov twg tam sim no tshaj 2,100 A, tuaj yeem ua rau kub kub, rwb thaiv tsev tsis ua haujlwm, lossis xwm txheej txaus ntshai arc-flash. GNEE pab pawg engineering ib txwm hla cov txheej txheem thoob ntiaj teb nrog cov xwm txheej ntawm qhov chaw los lav tias koj 1500 kVA qhuav hom transformer installation ua tau raws li kev tswj hwm thiab kev cia siab ua haujlwm.

 

 

High voltage (HV) thaiv rau 1500 kVA qhuav hom transformer feem ntau cuam tshuam nrog thawj qhov hluav taws xob ntawm 6 kV, 10 kV, 11 kV, lossis 13.8 kV. Txawm hais tias qhov tam sim no tsis tshua muaj qis dua-piv txwv li, kwv yees li 86.6 A ntawm 10 kV- rwb thaiv tsev, kev tshem tawm, thiab kev txiav tawm zoo yog qhov tseem ceeb heev. Txoj kab hluav taws xob siab thiab tsis tshua muaj hluav taws xob rau 1500 kVA qhuav hom transformer units qhia txog kev siv ib leeg-core cables kom raug, raug torqued bushings, thiab cov khoom siv tswj kev ntxhov siab thaum xav tau.

 

Sizing thiab Termination ntawm HV Cables rau 1500 kVA Qhuav Hom Transformers

Cable sizing yuav tsum xav txog tsis yog tag nrho-load tam sim no tab sis kuj yog luv luv-circuit withstand peev xwm ntawm transformer (feem ntau 6% mus rau 8% impedance). GNEE pom zoo kom siv tooj liab conductors, yam tsawg kawg nkaus 25-35 mm² cross-section rau 10 kV kev teeb tsa, tiv thaiv nrog lub vijtsam hlau zoo. Kev txiav tawm mus rau lub transformer's HV bushings yuav tsum tau M12 los yog M16 bolted lugs, torqued rau lub khw lub rooj. Nco ntsoov tso lub voj me me thiab siv cov cua sov-shrink taug qab-tiv thaiv rwb thaiv tsev ntawm qhov raug tshem tawm.

 

 

 

Ntawm 400 V los yog 480 V theem nrab, 1500 kVA qhuav hom transformer xa ib qho loj tag nrho-load tam sim no-2,165 A ntawm 400 V, thiab nyob ib ncig ntawm 1,804 A ntawm 480 V. Cov hluav taws xob tsis tshua muaj hluav taws xob yuav tsum tau kho nrog tib yam nruj raws li qhov siab voltage sab, yog tias tsis ntau. Txoj kab hluav taws xob siab thiab tsis tshua muaj hluav taws xob rau 1500 kVA qhuav hom transformer daim ntawv thov xav tau kev sib txuas qis, qis inductance kom tsis txhob muaj kev ntxhov siab thiab qhov hluav taws xob poob. Busbar systems yog qhov kev xaiv zoo tshaj plaws rau cov kab hluav taws xob rau LV sab vim lawv lub peev xwm nqa tau zoo dua tam sim no thiab cua sov dissipation.

 

Tsis Siv Neeg Grounding thiab Tiv Thaiv Cov Hluav Taws Xob rau 1500 kVA Qhuav Hom Transformers

Ib qho kev saib xyuas hauv kev xaim hluav taws xob tsawg yog kev tuav tsis zoo. Lub ntsiab lus nruab nrab yuav tsum tau ua kom muaj zog tshwj tsis yog tias lub kaw lus tsim los rau kev ua haujlwm siab lossis impedance grounding. Lub busbar nruab nrab yuav tsum muaj tib qhov hla-seem raws li cov theem busbars thaum cov ntsiab lus sib haum xeeb tsawg, lossis loj dua yog tias muaj qhov siab triplen harmonics. Tag nrho cov khoom siv hlau uas tsis yog tam sim no nqa, suav nrog lub thawv hloov pauv, yuav tsum tau sib txuas nrog cov khoom siv hauv av kom zoo raws li NEC 250 lossis IEC 60364. GNEE pre-installs ib qho chaw nruab nrab qhov nruab nrab qhov thaiv thiab cov txheej txheem grounding ncoo ntawm lub hauv paus channel kom yooj yim cov txheej txheem no.

 

 

Kev teeb tsa kev teeb tsa ua haujlwm ua kom ntseeg tau tias txhua qhov kev sib txuas ua ke nrog cov qauv hluav taws xob siab thiab qis hluav taws xob rau 1500 kVA qhuav hom transformer khoom. GNEE cov kws tshaj lij commissioning pom zoo ua ntu no:

 

Ua ntej-Kev kuaj xyuas thiab Kev Npaj Qhov Chaw

Ua ntej nqa lub tshuab hloov pauv, txheeb xyuas lub hauv paus theem, qhov cua tshem tawm (tsawg kawg 200 hli ntawm phab ntsa), thiab ntsuas qhov ntsuas kub ntawm qhov ntsuas kub. Qhib lub thawv xa khoom thiab xyuas tam sim ntawd cov tub ntxhais-rau-coil rwb thaiv tsev tsis kam siv 2500 V mega-ohm meter rau HV thiab 500 V rau LV. Sau cov ntawv nyeem rau qhov zoo dossier-qhov tseem ceeb tshaj 1000 MΩ.

 

Cable Routing, Lugging, thiab kev sib txuas Order

Txoj kev HV cables los ntawm lub hauv qab los yog sab saum toj phaj phaj, ua kom tsawg kawg yog khoov vojvoog ntawm 15 npaug ntawm txoj kab uas hla. Txuas lub HV theem ua ntej, tom qab theem ntu cim U, V, W, thiab tom qab ntawd mus rau LV terminals. Rau kev sib txuas ntawm LV busbar, siv lub tsho nyias nyias ntawm cov tshuaj tiv thaiv antioxidant sib txuas ntawm txhuas-rau-tooj ​​liab cuam tshuam. Torque bolts nyob rau hauv ib tug cross-pattern rau Nm qhov tseem ceeb qhia nyob rau hauv lub transformer lub nameplate. Tsis txhob energize yam tsis muaj kev sib tw polarity thiab theem-rotation test.

 

 

Ua kom tau raws li tus qauv siab thiab tsis tshua muaj hluav taws xob xaim hluav taws xob rau 1500 kVA qhuav hom transformer kev teeb tsa txhais tau hais tias ua raws li tsev neeg cov cai tswj tau zoo. GNEE tsim thiab txhawb kev ua raws li IEC 60076-11 (qhuav-hom fais fab transformers), IEEE C57.12.01 (kev cai dav dav), thiab ANSI / UL 1562 rau transformer enclosures. Nyob rau sab xaim, peb cov ntaub ntawv qhia txog kev siv NFPA 70 (NEC) Tshooj 450 rau kev tiv thaiv kev hloov pauv, ntxiv rau IEC 61439-1 rau cov khoom siv hluav taws xob qis thiab cov khoom sib txuas nrog lub tshuab hloov pauv.

 

Los ntawm kev tshaj tawm cov qauv no ncaj qha rau hauv peb lub Hoobkas kev lees paub, peb pab koj ua kom pom tseeb ntawm cov neeg thib peb vim kev mob siab rau AHJs thiab cov neeg tuav pov hwm- ntxiv dag zog rau koj qhov project EEAT hneev taw.

 

 

Txawm tias muaj kev paub txog pab pawg tuaj yeem ua qhov yuam kev me me. Hauv qab no yog cov feem ntau pitfalls peb saib:

 

Undersized nruab nrab conductors:Harmonic loads nyob rau hauv niaj hnub lag luam vaj tse yuav ua rau nruab nrab tam sim no tshaj 150% ntawm theem tam sim no. Ib txwm ntsuas THD ua ntej ua tiav qhov nruab nrab ntu ntu.

 

Tsis quav ntsej qhov cua nyob ib puag ncig LV terminals:Cables los yog busbars tau ntim nruj heev tiv thaiv airflow thiab ua rau cov cua sov hauv zos. Khaws tsawg kawg yog 50 hli huab cua sib txawv nyob ib ncig ntawm txhua qhov chaw txuas hluav taws xob.

 

Kev sib xyaw cov hlau tsis muaj kev tiv thaiv:Kev sib cuag ntawm tooj liab-rau-aluminium ncaj qha ua rau galvanic corrosion. GNEE muab tin-plated lossis bi-metallic lugs thiab busbar adapters raws li tus qauv ntawm tag nrho 1500 kVA qhuav hom transformers.

 

Hla torque checks:Loose busbar bolts yog qhov ua rau thermal runaway. Retorque tag nrho cov kev sib txuas tom qab 24 teev ntawm qhov pib thauj khoom, tom qab ntawd txhua xyoo.

 

 

Cov lus hauv qab no muab lub Hoobkas-pom zoo siv qhov tseem ceeb rau ib txwm 1500 kVA qhuav hom transformer installation. Ib txwm txheeb xyuas tawm tsam cov kev cai hauv zos thiab cov kev ntsuas tshwj xeeb engineering.

Parameter	High Voltage (Tswj)	Tsawg Voltage (Tswj)
Rated Voltage	10 kV / 11 kV / 13.8 kV	400 V / 415 V / 480 V
Puv Load Tam sim no (kwv yees)	86.6 A @ 10 kV	2165 A @ 400 V
Pom zoo tus neeg xyuas pib hom	Single-core Cu/XLPE, shielded	Pav ca Cu los yog Al busbars / ntau ib leeg-cores
Yam tsawg kawg tus neeg xyuas pib hla ntu (Cu)	25-35 mm² (nyob ntawm daim ntawv thov)	3 x (100x10 mm) busbars ib theem
Terminal Bolt Loj	M12 / M16	M16 / M20 (kev sib txuas ntawm busbar)
Rwb thaiv tsev Class	F (155 degree) / H (180 degree)	F (155 degree) / H (180 degree)
Kev ntsuam xyuas IP	IP00-IP54 (raws li kev txiav txim)	IP00-IP54
Grounding System	Khoom / impedance (tsim tshwj xeeb)	Khoom nruab nrab (TN-S, TN-C-S)
Siv tau Standard	IEC 60076-11, IEEE C57.12.01	IEC 61439-1, NEC Art . 450

 

 

GNEE yog lub chaw tsim khoom ncaj qha, tsis yog tus neeg nruab nrab. Txhua 1500 kVA qhuav hom transformer peb nkoj tau tsim nrog qib siab uas tsis yog-hygroscopic resin, lub tshuab nqus tsev-casting windings, thiab ib tus zuj zus kuaj bushing txuas ua ntej xa. Peb cov txuj ci tsim nyog-ISO 9001, CE, thiab UL certified designs- tsim lub hauv paus ntawm EEAT teeb liab uas ntseeg tau.

 

Dhau ntawm cov khoom siv kho vajtse, peb muab cov kab kos duab, kev sib koom ua ke tiv thaiv thawj zaug, thiab kev txhawb nqa tom qab xa khoom. Thaum koj koom tes nrog GNEE, koj tau txais kev nkag mus rau cov kws ua haujlwm uas tuaj yeem txhais cov qauv hluav taws xob siab thiab tsis tshua muaj hluav taws xob rau 1500 kVA qhuav hom transformer tej yaam num tshwj xeeb rau koj cheeb tsam daim phiaj chaws.

 

Dry hom transformer ntim rau hauv ib qho export ntoo crate

 

 

Tau txais txoj cai xaim yog qhov tseem ceeb xws li xaiv lub tshuab hloov pauv nws tus kheej. Kev nruj nruj nrog rauHigh thiab tsawg voltage thaiv txheej txheem rau 1500 kVA qhuav hom transformerkev teeb tsa tiv thaiv cov cuab yeej cuab tam, ua kom cov neeg ua haujlwm muaj kev nyab xeeb, thiab ua kom muaj kev pab cuam tsis muaj teeb meem ntau xyoo.

 

GNEE's Hoobkas-engineered transformers, ua ke nrog peb kev mob siab rau cov kev taw qhia pob tshab, muab rau koj ib leeg, lav ris tus khub los ntawm kev xa mus rau qhov kawg energization.

 

Cia peb tham txog koj qhov project:xa koj cov lus qhia tshwj xeeb rau peb pab neeg tam sim no thiab tau txais kev cai-tsim qauv 1500 kVA qhuav hom transformer hais, nrog rau daim ntawv tshuaj xyuas kev sib txuas pub dawb. Nyem qhov Nug khawm thiab ua kom koj lub installation muaj kev nyab xeeb tag kis.

 

Thov Ib Qhov Quote

 

IEC tus qauv rau qhuav- hom transformers yog dab tsi?

IEC 60076-11: 2018siv rau qhuav- hom fais fab transformers (xws li pib-transformers) muaj qhov muaj txiaj ntsig ntawm qhov hluav taws xob siab tshaj plaws rau cov khoom siv mus txog thiab suav nrog 72,5 kV thiab tsawg kawg yog ib qho kev ua haujlwm ntawm qhov siab tshaj 1,1 kV.

 

IEC tus qauv rau transformer installation yog dab tsi?

CovIEC 60076 Kev Ua Haujlwm- Lub hauv paus ntawm Transformer Standards
IEC 60076 series yog qhov tseem ceeb siv rau txhua qhov hluav taws xob transformer engineering. Nws txhais cov kev cai dav dav, cov txheej txheem kuaj tshwj xeeb, thiab cov ntawv thov tshwj xeeb.

 

Qhov voltage ntawm 1500kva transformer yog dab tsi?

13200V

Transformer Nta: Nrog rau qhov ntsuas ntsuas ntawm 1.5 MVA (1500 KVA), cov khoom siv hluav taws xob muaj cov yam ntxwvthawj qhov hluav taws xob ntawm peb-theem 13200V Delta thiab qhov hluav taws xob thib ob ntawm peb-theem 480Y/277 Wye-n.

 

Dab tsi yog qhov yuav tsum tau ua rau qhuav -hom transformer?

Qhuav- hom transformersyuav tsum tau muab tso rau hauv cov vaults ruaj ntseg los yog kaw rau hauv cov hlau kaw uas tsis muaj qhov qhib rau qhov cua. Cov transformers no tau tsim los ua haujlwm ntawm qhov siab tshaj nominal voltage ntawm 600 volts.

 

Muaj pes tsawg volts yog 1500 kVA?

Peb theem:

Kab hluav taws xob (V)
kVA ua	208	240
1000	2776	2406
1500	4164	3608
2000	5552	4811

 

1500 kVA txhais li cas?

kVA txhais li cas ntawm lub tshuab hluav taws xob. Lub tshuab hluav taws xob yog ib yam khoom uas kVA siv los ntsuas lub zog. Qhov tseem ceeb,qhov siab dua qhov ntsuas kVA, lub zog ntau lub tshuab hluav taws xob tsim tawm. Kilovolt-amps (kVA) ntsuas qhov pom muaj zog ntawm lub tshuab hluav taws xob, thaum kilowatts (kW) ntsuas qhov tseeb Fais fab.