500 kVA Utility Pad Mounted Transformer-24/0.48 kV|USA 2024

 

 

01 General

1.1 Project Description

Lub 500 kVA peb-theem ncoo-mounted transformer, xa mus rau Tebchaws Meskas xyoo 2024, yog tsim los ua kom tau raws li IEEE Std C57.12.34-2022 thiab DOE 2016 cov qauv kev ua haujlwm zoo.

Ua haujlwm ntawm 60 Hz, nws muaj qhov tseem ceeb ntawm 24 kV thiab qhov nruab nrab ntawm 480GrdY / 277 V nrog Dyn1 vector pawg. Covlub hwj chim pad mounted transformersiv tooj liab windings thiab KNAN txias, ntim nrog FR3 ntuj ester roj rau kev txhim kho hluav taws kev nyab xeeb thiab kev ua raws li ib puag ncig. Nws suav nrog lub voj voog pub muaj peev xwm, tuag- nkag rau pem hauv ntej, thiab tsis muaj -load kais hloov pauv nrog ± 2 × 2.5% qhov hloov pauv voltage. Nrog rau qhov impedance ntawm 5.75%, tsis muaj-load poob ntawm 0.610 kW, thiab ntawm -load poob ntawm 4.530 kW, chav tsev no xa cov khoom siv tau zoo thiab txhim khu kev qha nruab nrab-voltage fais fab faib. Nws yog qhov zoo tshaj plaws rau kev siv hauv cov chaw lag luam, cov chaw lag luam me, thiab kev tsim kho vaj tse nyob qhov twg yuav tsum muaj kev nyab xeeb, zoo ib yam, thiab kev hloov hluav taws xob zoo.

 

 

 

1.2 Technical Specification

500kVA hluav taws xob ncoo mounted transformer specification thiab cov ntaub ntawv ntawv

 

 

1.3 Cov duab kos

500kVA hluav taws xob ncoo mounted transformer kos duab thiab nameplate

 

 

02 Kev tsim khoom

2.1 Core

 

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 ntsuas raws li IEEE C57.12.90-2021 Clause 5

2. Theem-Kev xeem txheeb raws li IEEE C57.12.90-2021 Clause 6

3. Kev Ntsuas Qhov Ntsuas raws li IEEE C57.12.90-2021 Clause 7

4. Tsis muaj Load Losses thiab Tsis Muaj Load Tam Sim No raws li IEEE C57.12.90-2021 Clause 8

5. Load Losses, Impedance Voltage thiab Efficiency raws li IEEE C57.12.90-2021 Clause 9

6. Induced Voltage Withstand Test raws li IEEE C57.12.90-2021 Clause 10.5.1

7. Applied Voltage Test raws li IEEE C57.12.90-2021 Clause 10.6

8. Kev Xeem Leak nrog Lub Siab rau Cov Kua Immersed Transformers - qhov kev ntsuam xyuas tawm ntawm 15 kPa yuav tsum tau ua rau 12 teev yam tsis muaj qhov to. Tsis tas li deformation.

9. Kev ntsuas kev tiv thaiv rwb thaiv tsev

10. Roj Dielectric Test

 

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	0.171	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: Dyn1	0.03% ~ 0.05%	Hla
3	theem- kev xeem sib txheeb	/	Dyn 1	Dyn 1	Hla
4	Tsis muaj -load poob thiab excitation tam sim no	% kW	I0 :: muab ntsuas tus nqi P0: muab ntsuas tus nqi Qhov kam rau ua tsis muaj load poob yog +0%	0.13% 0.544	Hla
5	Load poob impedance voltage thiab efficiency	% kW kW	t:85 ua Z%: ntsuas tus nqi Pk: ntsuas tus nqi Pt: ntsuas tus nqi Kev kam rau siab impedance yog ± 7.5% Kev kam rau tag nrho cov load poob yog +0% Kev ua haujlwm tsis tsawg dua 99.35%	5.70% 4.453 4.997 99.38%	Hla
6	Applied Voltage Test	kV ua	HV: 40kV 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): 0.960 Duration(s): 40 Zaus (HZ): 180	Tsis muaj kev sib tsoo ntawm qhov ntsuas hluav taws xob tshwm sim	Hla
8	Kev Xeem Leakage	kPa ua	Kev siv siab: 15kPA Duration: 12h	Tsis muaj leakage thiab tsis muaj Kev puas tsuaj	Hla
9	Rwb thaiv tsev Resistance Measurement	GΩ	HV-LV to Av: LV-HV to Av: HV & LV rau hauv av:	5.11 4.87 5.08	/
10	Roj Dielectric Test	kV ua	Ntau dua lossis sib npaug li 40	52.3	Hla

 

 

04 Packing thiab Shipping

05 Site thiab Summary

Scotech's 500 kVA peb-theem ncoo-mounted transformerua nrog tooj liab windings thiab KNAN txias, lub transformer siv FR3 natural ester roj- txhim kho hluav taws kev nyab xeeb thiab txo qhov cuam tshuam ib puag ncig. Nws lub voj - pub configuration thiab tuag- pem hauv ntej tsim txhim khu kev ruaj ntseg thiab yooj rau installation thiab txij nkawm. Nrog rau qhov impedance ntawm 5.75% thiab qis zog poob, nws ua kom ruaj khov, ua haujlwm tau zoo thoob plaws qhov xav tau.

Txhua Scotech transformer yog sib sau ua ke nrog kev saib xyuas thiab nto - kho kom ruaj khov. Sib phim kov- cov xim pleev xim yog muab los tuav ob qho tib si corrosion thiab pom kev sib xws tom qab kev teeb tsa.

Nrog rau kev tsom mus rau qhov ua tau zoo thiab kev siv hluav taws xob- qib kev ua tau zoo, Scotech tseem muab cov ntaub ntawv muaj txiaj ntsig zoo -mounted transformers rau cov tshuab hluav taws xob niaj hnub thoob plaws North America thiab dhau mus.