50 KVA Transformer Fais Fab Ncej-13.8/0.24/0.12 KV|Guyane xyoo 2025

 

 

01 General

1.1 Project Description

50 kVAib theem ncej mounted transformertau xa mus rau Guyana xyoo 2025. Qhov ntsuas lub zog ntawm lub transformer yog 50 kVA nrog ONAN txias. Qhov siab voltage yog 13.8 kV nrog ± 2 * 2.5% tapping ntau (NLTC), qhov tsawg voltage yog 0.12 / 0.24 kV, lawv tsim ib pawg vector ntawm Ii0.

Peb 50kVA,transformer zog ncejtsim los rau kauj ruam- kev pabcuam hauv cov khoom siv nyiaj siv ua haujlwm tshaj tawm. Lub transformer muaj qhov siab -voltage (primary) ntsuam xyuas ntawm 13.8 kV, uas yog ib qho kev faib hluav taws xob theem rau cov nyob deb nroog thiab suburban feeders, thiab ib tug tsawg-voltage (secondary) ntsuam xyuas ntawm 0.12/0.24 kV (120/240 V) 1} ib tug sib cais rau ob qho tib si {{9} gufi. teeb pom kev zoo thiab cov khoom siv thauj khoom thiab 240 V rau cov khoom siv loj xws li cov twj tso dej, cua txias, lossis cov tshuab me me.

Nrog lub peev xwm nominal ntawm 50 kVA, chav tsev no yog qhov tsim nyog rau kev muab cov pawg me me ntawm cov neeg siv khoom hauv tsev, chaw lag luam me, lossis chaw ua liaj ua teb. Lub transformer yog tsim los rau ncej-mounting siv tus qauv brackets los yog davit caj npab, ua kom yooj yim rau kev saib xyuas thiab kev sib txuas. Nws cov ntaub thaiv npog yog huab cua- kaw thiab ntim nrog cov kua dej dielectric (feem ntau cov roj ntxhia lossis lwm yam kev tiv thaiv ib puag ncig) los muab hluav taws xob rwb thaiv tsev thiab ua kom muaj cua sov zoo.

Thawj qhov kev txiav tawm yog nruab nrog ob lub bushings (nyob - qauv tsim sab hauv) lossis ib lub bushing nrog lub tank hauv av (tuag- qauv tsim), sib xws nrog sab nraud fuse cutouts, surge arresters, thiab grounding systems. Sab ob sab muab peb- xaim hluav taws xob (L1, L2, nruab nrab) nrog rau qhov nruab nrab txuas rau lub tank thiab hauv av rau kev nyab xeeb. Qhov no 50 kVA transformer ua tau raws li ANSI / IEEE cov qauv rau qhov kub thiab txias, impedance, thiab rwb thaiv tsev theem, ua kom ntseeg tau kev ua haujlwm nyob rau sab nraum zoov nrog qhov sib txawv ntawm qhov kub thiab txias thiab cov qauv thauj khoom.

 

 

 

1.2 Technical Specification

50 kVA transformer fais fab ncej specifications hom thiab cov ntaub ntawv ntawv

 

1.3 Cov duab kos

50 kVA transformer fais fab ncej daim duab kos duab thiab loj.

 

 

02 Kev tsim khoom

2.1 Core

 

2.2 Cua txias

 

2.3 Tank

 

2.4 Kev sib dhos zaum kawg

 

 

03 Kev Xeem

3.1 Cov Khoom Siv Xeem (ISO 17025-raws li lab)

• 0.05-chav kawm 3-theem fais fab analyzer
• 0.1-chav kawm tsis siv neeg piv choj
• Kev ntsuas qhov tso tawm ib nrab
• Rwb thaiv tsev Tester (0.1MΩ - 1000GΩ)
• Tsis siv neeg roj dielectric tester (2kV / s, 6 rov ua dua)
• 200kV / 5A AC withstand voltage system
• Precision siab sensors (0.1 chav kawm) rau kev xeem xau

 

3.2 Cov qhab nia xeem

Peb siv txoj kev sim nruj kom ntseeg tau ntev -lub sij hawm. Cov kev ntsuam xyuas tseem ceeb thiab cov txiaj ntsig tau sau tseg hauv qab no.

Cov khoom kuaj	Method / Xwm Txheej	Kev xav tau	Ntsuas qhov tshwm sim	Xaus
Kev ntsuas ntsuas	Voltmeter-ammeter method, computer-tswj DVM, txias tsis kam	Kev tsim qauv zoo ib yam	LV voj tsis kam (120V): 14.278 & 14.622 Ω - qhov sib txawv tsawg heev	✅ Pass
Qhov ntsuas ntsuas	IEEE piv choj; tshuav nyiaj li cas ntawm R / R1	Deviation Tsawg dua lossis sib npaug li 0.5%	Main tap deviation:0.00%	✅ Pass
Polarity	Qhov ntsuas ntsuas	Kev rho tawm	Kev rho tawm	✅ Pass
Tsis muaj -load poob & tam sim no	Rated voltage excitation	P0 Tsawg dua lossis sib npaug rau 184W (guaranteed 160W +15%)	P0 = 148W(12W qis dua); Kuv 0=1.021%	✅ Zoo tshaj spec
Load poob, impedance, efficiency	85℃, luv - txoj kev voj voog; lub zog analyzer	Z% kam rau ua ± 10%; tag nrho poob Tsawg dua lossis sib npaug rau +6%	Z%=2.08%; Pk=503W;Tag nrho poob 651W(lub hom phiaj 672W);Kev ua tau zoo 98.96%	✅ Pass
Applied voltage xeem	HV: 34kV / 60s; LV: 10kV/60s	Tsis muaj kev tawg	HV 34kV / 60s, LV 10kV / 60s - tsis tawg	✅ Pass
Induced voltage xeem	2 × rated voltage (27.6kV), 150Hz, 48s	Tsis muaj kev tawg	Siv 30.48kV rau 48s - dhau	✅ Pass
Rwb thaiv tsev tsis kam	Rwb thaiv tsev tsis kam tester (GΩ ntau)	>10 GΩ pom zoo	HV-LV rau av:96.2 GΩ; LV-HV rau hauv av: 38.4 GΩ; HV & LV rau hauv av: 50.4 GΩ	✅ Zoo heev
Leak Test (kev sib khi)	20 kPa roj siab, 12 teev	Tsis muaj dej, tsis muaj kev puas tsuaj	20 kPa / 12h - tsis xau, tsis muaj kev puas tsuaj	✅ Pass
Roj dielectric zog	6 qauv, 2kV / s ramp, 25mm qhov sib txawv	Ntau tshaj lossis sib npaug li 45 kV	Nruab nrab 66.06 kV63.8-69.2 kV	✅ Zoo heev

 

Qhov Tseem Ceeb Kev Ntseeg Takeaway

• Insulation resistance >96 GΩ ua kom muaj kev nyab xeeb ua haujlwm nyob rau hauv qhov chaw ntub lossis muaj kuab paug.
• Roj dielectric zog ntawm 66 kV (zoo tshaj 45 kV) qhia tau hais tias zoo heev roj zoo thiab qhuav rwb thaiv tsev.
• Sealing xeem ntawm 20 kPa rau 12h lav tsis muaj roj to ntau xyoo ntawm kev pabcuam.
• Kev ua haujlwm siab (98.96%) txo cov nqi khiav lag luam thiab tsim hluav taws xob.

 

 

 

04 Packing thiab Shipping

4.1 Ntim

• Txuj: Export-qib, ya raws- pov thawj thiab poob siab{2}} pov thawj (IP20 / IP54 yeem).
• Kev tiv thaiv sab hauv: Lub tank ntim nrog cov roj nitrogen qhuav lossis cov roj insulating - tiv thaiv xeb thaum caij tsheb npav.
• Base tsim: Welded steel puag nrog lifting qhov rau slings.
• Kev poob siab: Elastic pads hauv qab - haum rau hiav txwv, huab cua, thiab kev thauj khoom (5-10Hz vibration).
• Sab nrauv npog: Waterproof yas zaj duab xis + ntau- txheej corrugated cardboard - plua plav thiab noo noo tiv thaiv.

 

4.2 Shipping

• Lub sijhawm ua haujlwm: Short – annual capacity >10,000 units.
• Cov ntaub ntawv: Txhua lub tshuab hluav taws xob suav nrog cov ntawv xeem lus Askiv, daim ntawv teev cov ntaub ntawv, daim ntawv pov thawj ntawm kev ua raws, phau ntawv qhia kev teeb tsa.
• Torque check: Tag nrho cov HV thiab LV davhlau ya nyob twg bolts yog re-torqued ua ntej packing.
• Compact loj: Yooj yim thauj khoom (qhov loj me: 925 × 675 × 695 mm, hnyav 263 kg).
• Cov ntaub ntawv xa khoom: Daim ntawv teev npe, daim ntawv them nqi lag luam, COO, tshaj tawm xa tawm, tus lej taug qab.

 

 

05 Site thiab Summary

Hauv cov ntsiab lus, peb ib leeg -theem ncej mounted transformer muaj qhov zoo ntawm cov qauv compact, txhim khu kev qha, kev poob qis, thiab kev txij nkawm-kev ua haujlwm dawb, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev sib faib hauv nroog thiab nyob deb nroog, kev hloov kho kab sib chaws nyob deb nroog, cov zej zog hauv zej zog, thiab kev siv hluav taws xob ib ntus. Txhua lub tshuab hloov hluav taws xob yog tsim los ntawm kev ua raws li cov qauv thoob ntiaj teb thiab kev lag luam, nrog rau tag nrho - txheej txheem kev tswj kom zoo los xyuas kom meej ntev - lub sijhawm ua haujlwm ruaj khov txawm tias nyob hauv ib puag ncig hnyav. Kev xaiv peb txhais tau hais tias tsis yog xaiv cov khoom siab tshaj - cov khoom zoo xwb tab sis kuj tau txais kev nkag mus rau cov kws tshaj lij kev txhawb nqa thiab kev pab cuam lub neej lav. Yog xav paub ntxiv los yog kev daws teeb meem, thov koj xav tiv taujtiv tauj peb.