500 kVA Pad Mounted Transformer-13.2/0.48 kV|USA 2025

 

01 General

1.1 Project Background

Qhov project no suav nrog kev muab khoom ntawm 500 kVA peb-theem ncoo-mounted faib transformer, tsim rau 60 Hz systems nrog thawj qhov hluav taws xob ntawm 13.2 kV GrdY / 7620 V thiab ib qho hluav taws xob theem nrab ntawm 480 V. Lub transformer nta ONAN (Oil Natural Air Natural) kev nyab xeeb, kev nyab xeeb thiab kev ua haujlwm ntawm lub voj voog. Nws yog tsim nrog ib pawg YNd1 vector thiab muaj impedance ntawm 5.75%.

Ua raws li DOE 2016 cov qauv kev siv hluav taws xob, 500 kva pad mounted transformer muab kev ua haujlwm siab nrog kev poob qis zog -5.75 kW tsis muaj load poob thiab 0.65 kW load poob ntawm lub peev xwm ntsuas.

Qhov no 500 kVA 13.2 kV / 480 V peb-theem ncoo-mounted transformer yog zoo tagnrho rau nruab nrab-voltage mus rau qis-voltage tis nyob rau hauv nroog thiab suburban cheeb tsam. Cov ntawv thov ib txwm muaj xws li:

• Cov zej zog nyob, muab lub zog rau teeb pom kev zoo, HVAC, thiab cov khoom siv hauv tsev

• Cov chaw lag luam xws li chaw ua haujlwm, khw muag khoom, thiab cov chaw muag khoom

• Lub teeb muaj chaw ua haujlwm, siv hluav taws xob me me mus rau nruab nrab - cov khoom siv thiab tshuab

• Cov tsev kawm ntawv zoo li tsev kawm ntawv thiab tsev kho mob xav tau lub zog muaj zog thiab muaj kev nyab xeeb

• Cov tshuab xa tawm hauv av, siv hauv cov voj voog pub rau kev txhim kho kev ntseeg tau thiab kev nyab xeeb

Nws lub ncoo-mounted, voj- pub, thiab tuag- pem hauv ntej tsim ua rau nws haum rau sab nraum zoov lossis hauv av- theem kev teeb tsa qhov chaw, kev nyab xeeb, thiab kev nkag mus tau yog qhov tseem ceeb.

 

1.2 Technical Specification

500kVA peb theem ncoo mounted transformer specification thiab cov ntaub ntawv ntawv

 

1.3 Cov duab kos

500 kva ncoo mounted transformer specification thiab cov ntaub ntawv ntawv

 

 

02 Kev tsim khoom

2.1 Core

Tsib - ceg tsim qauv ua kom muaj kev sib nqus sib nqus sib nqus rau tag nrho peb theem. Txawm tias nyob rau hauv xoom- ntu ntu tam sim no- xws li cov tshwm sim los ntawm ib qho - kab- mus rau - hauv av faults- lossis thaum lub sij hawm thauj khoom tsis sib npaug, cov hlau nplaum sib nqus tuaj yeem ntws zoo los ntawm ob txhais ceg sab nraud. Qhov no txo ​​cov hlau nplaum tsis kam, txo qhov kub nce, thiab txo qis kev co.

Cov qauv tseem ceeb no tshwj xeeb tshaj yog muaj txiaj ntsig zoo rau YNd vector pawg transformers, raws li nws muab txoj hauv kev meej rau xoom- sib txuas flux thaum lub hnub qub - txuas siab -voltage sab nruab nrab yog hauv av, yog li txhim kho hluav taws xob ruaj khov thiab kev ntseeg tau ntawm lub cev.

 

2.2 Cua txias

 

2.3 Tank

 

2.4 Kev sib dhos zaum kawg

 

 

03 Kev Xeem

Routine Test thiab Test Standard

1. Kev ntsuas kev tiv thaiv rwb thaiv tsev: IEEE C57.12.90-2021 Clause 10.11

2. Kev Ntsuas Qhov Ntsuas: IEEE C57.12.90-2021 Nqe 7; IEEE C57.12.00-2021 Nqe 9.1

3. Phase Relation Test: IEEE C57.12.90-2021 Clause 6

4. Kev ntsuas ntsuas: IEEE C57.12.90-2021 Nqe 5

5. Tsis Muaj Load Losses thiab Tsis Muaj Load Tam Sim No: IEEE C57.12.90-2021 Clause 8,IEEE C57.12.00-2021 Clause 9.3

6. Induced Voltage Withstand Test: IEEE C57.12.90-2021 Clause 10.7

7. Load Losses, Impedance Voltage thiab efficiency: IEEE C57.12.90-2021 Clause 9; IEEE C57.12.00-2021 Clause 9.2

8. Applied Voltage Test: IEEE C57.12.90-2021 Clause 10.6

9. Kev Xeem Leak Nrog Lub Siab Rau Cov Kua Dej -Immered Transformers: IEC60076-1

Cov qhabnias xeem

Tsis muaj.	Cov khoom kuaj	Chav tsev	Kev txais txiaj ntsig	Ntsuas Tus Nqi	Xaus
1	Kev ntsuas ntsuas	%	Maximum kuj unbalance tus nqi	2.29	Hla
2	Kev ntsuas ntsuas	%	Qhov sib txawv ntawm qhov sib piv ntawm qhov hluav taws xob ntawm tus thawj coj tapping: Tsawg dua lossis sib npaug li 0.5% Cov cim kev sib txuas: YNd1	-0.05% ~ -0.03%	Hla
3	Theem -kev xeem sib txheeb	/	YNd1	YNd1	Hla
4	Tsis muaj -load poob thiab excitation tam sim no	/	I0 :: muab ntsuas tus nqi	0.27%	Hla
			P0: muab ntsuas tus nqi (t: 20 degree)	0.577 kWm
			qhov kam rau tsis muaj load poob yog +10%	/
5	Load poob impedance voltage thiab efficiency	/	t:85 ua Qhov kam rau ua impedance yog ± 7.5% lub kam rau tag nrho load poob yog +6%	/	Hla
			Z%: ntsuas tus nqi	5.67%
			Pk: ntsuas tus nqi	4, 032 kWm
			Pt: ntsuas tus nqi	4, 609 kWm
			Kev ua haujlwm tsis tsawg dua 99.35%	99.41%
6	Applied Voltage Test	kV ua	HV: 34kV 60s LV: 10kV 60s	Tsis muaj kev sib tsoo ntawm qhov ntsuas hluav taws xob tshwm sim	Hla
7	Induced Voltage Withstand Test	kV ua	Kev siv hluav taws xob (KV): 2Ur	Tsis muaj kev sib tsoo ntawm qhov ntsuas hluav taws xob tshwm sim	Hla
			Duration(s):48
			Zaus (HZ): 150
8	Kev Xeem Leakage	kPa ua	Kev siv siab: 20kPA	Tsis muaj leakage thiab tsis muaj Kev puas tsuaj	Hla
			Duration: 12h
9	Rwb thaiv tsev Resistance Measurement	GΩ	HV-LV to Av:	21.5	/
			LV-HV to Av:	51.6
			HV&LV to Av	21.2

 

 

04 Packing thiab Shipping

4.1 Ntim

 

4.2 Shipping

Ua ntej thauj khoom, ntsuas lub transformer qhov loj thiab qhov hnyav, thiab npaj ib txoj hauv kev uas tsis txhob muaj qhov siab, qhov dav, thiab qhov hnyav. Siv cov- txaj qis lossis cov tsheb thauj khoom tshwj xeeb uas muaj peev xwm txaus.

Teem lub transformer qhov nruab nrab ntawm lub ntiajteb txawj nqus nrog lub tsheb. Siv cov hlau channel thiab cov txheej txheem fastening kom ruaj rau lub hauv paus rau lub tsheb, yog tias tso cai. Ruaj ntseg lub transformer nrog slings los yog chains los ntawm lub tsheb thauj mus los qhov, tsis txhob fragile Cheebtsam xws li radiators thiab bushings. Xauv cov khoom sab hauv thiab kaw txhua qhov rooj.

Khaws ceev Tsawg dua lossis sib npaug li 60 km / h thiab qaij Tsawg dua lossis sib npaug li 15℃thaum thauj. Tsis txhob txav tam sim ntawd thiab muaj zog vibrations. Muab cov escorts los xyuas kev khi thiab nres tsheb thaum huab cua hnyav.

Thaum lifting, khaws cov kaum sab xis tsawg dua lossis sib npaug li 60 degree. Siv cov kab kis kab mob yog tias xav tau. Ib txwm nqa upright, thiab rau cov chav uas tsis muaj lub hau sab saum toj, siv cov pas nrig nqa hauv qab.

 

 

05 Site thiab Summary

Qhov no 500 kVA, 13.2 kV / 480 V peb-theem ncoo-mounted tis transformer nta ib pawg YNd1 vector, muab cov nruab nrab zoo heev- rau- tsis tshua muaj hluav taws xob sib cais thiab cov peev txheej hauv av tsim rau North American lub zog hluav taws xob. Nws tsib- ceg tsim qauv txo xoom- cov kab mob sib kis, txhim kho kev ua haujlwm ruaj khov thiab txo qis kev co.

Equipped with a sealed mild steel oil tank and rear-mounted corrugated radiators, it provides efficient natural cooling (ONAN) and long-term reliability. Tus tuag- qauv tsim ua kom muaj kev nyab xeeb thiab yooj yim txij nkawm. Lub siab-voltage sab suav nrog rau 200A cov kab hluav taws xob sib cais thiab lub siab H0 nruab nrab bushing, thaum qis-voltage sab siv resin-cast spade- hom bushings rau kev ruaj ntseg cable txuas. Cov cuab yeej tiv thaiv xws li bayonet fuses, tam sim no - txwv fuses (CLF), thiab cov thawj surge arresters muab kev ruaj ntseg txhaum cai thiab tiv thaiv overvoltage.

Cov ntawv thov ib txwm muaj xws li nruab nrab - mus rau - qhov hluav taws xob tsis tshua muaj hluav taws xob nyob hauv nroog thiab hauv nroog ib puag ncig xws li cov zej zog nyob, cov chaw lag luam, cov chaw tsim khoom lag luam, tsev kawm ntawv, thiab tsev kho mob, qhov kev nyab xeeb thiab kev ntseeg siab yog qhov tseem ceeb. Nws kuj tseem zoo -tsim rau hauv av voj- pub cov khoom faib khoom los txhim kho kev ntseeg tau.