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3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed
Detail Information
Place of Origin:
CHINA
Certification:
UL/cUL,CE,ISO
Document:
UL&cUL certification-Three....pdf
Type:
Three Phase Pad Mounted Transformer
Capacity:
2550 KVA
Primary Voltage:
34500
Tapping Range:
14400V, 13800V, 13200V, 12870V, 12470V, 12000V, 11500V
Secondary Voltage:
480V
Certification:
UL/cUL
Warranty:
2 Years
Application:
Oil & Gas, New Energy, Data Center, Utilities
Delivery Time:
30days
Supply Ability:
1000set/month
Product Description

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed

 

 

Why Choose Us


1.Meets Strict North American Standards
Our pad-mounted transformers are designed and tested to comply with applicable standards, including CSA, IEEE C57, and DOE efficiency requirements.

 

2.Full UL/cUL Certification Coverage
Our full product line is UL and cUL certified, helping ensure compliance with North American market entry requirements.

 

3.Complete Standard and Optional Accessories
Each unit comes standard with essential accessories such as temperature indicators, liquid level gauges, and pressure/vacuum gauges.
Optional accessories include loadbreak switches, bayonet fuses (with or without partial-range protection), current-limiting fuses, and lightning surge arresters.

 

4.Strong Custom Engineering Capabilities
We offer custom designs for high-efficiency performance, harsh environments, low-noise applications, 50Hz/60Hz operation, K-factor ratings, and other specialized requirements.

 

5.Experienced North American Export Supplier
A leading Chinese manufacturer dedicated to exporting exclusively to the U.S. and Canadian markets.

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 0

 

Product photos

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 1

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 2

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 3

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 4

 

Main data

 

specification data
No. Particulars Unit Specification Remark
1 Type ~ pad mounted, radial feed step down
2 Rated capacity kVA 2550  
3 No. of Phase ~ 3 phases  
4 Primary voltage V 34500 Wye-N
Primary bushing ~ (3) 4-hole 400A Porcelain bushings, (1) H0 Porcelain bushing live front, BIL150KV
5 Secondary voltage V 480 delta
Secondary buhsing ~ (3) BIL30kV 10-hole NEMA spade live front
6 Tapping type ~ off-circuit  
7 Tapping range V 34500,33000,26400, 24940, 22860
8 Cooling method ~ ONAN  
9 Rated frequency Hz 60  
10 Vector group ~ YNd1  
11 Insulation class ~ A  
12 Temperature rise ℃ 65  
13 Off-load loss W 2700 ±10% tolerance
14 On-load loss (85℃) W 24500
15 Impedance % 5.75~6.75
16 Winding material ~ Aluminum  
17 Core material ~ silicon steel  
18 Cooling material ~ Mineral oil  
19 Tank&enclosure ~ NEMA 3R (green)  
20 Dimension inch 87*104*81 for reference only
21 Weight lbs 14991
22 Service condition ~ indoor or outdoor  
23 Sea level M ≤1000  
24 Standard ~ ANSI C57.12.34  

 

Technical drawings

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 5

 

Specification

 

Rated Power
(KVA)		 High Voltage
(KV)		 Low Voltage
(V)		 No-load Loss
(W)		 On-load Loss
(W)		 Height
(mm)		 Depth
(mm)		 Width
(mm)		 Weight
(kg)		 Weight
(Lbs)
75KVA 34.5KV
4.160KV
12.47KV
13.2KV
13.8KV
24940GrdY/14400
1247Grdy/7200
4160GrdY/2400
or others		 277V
347V
480V
600V
120/240V
208GrdY/120
415GrdY/240
480GrdY/277
600Y/347		 180 1250 1430 910 1930 645 1422
150KVA 280 2200 1530 980 1510 989 2180
300KVA 480 3650 1680 1080 1660 1415 3119
500KVA 680 5100 1790 1160 1810 1905 4200
750KVA 980 7500 2030 1300 2030 2755 6074
1000KVA 1150 10300 1854 1549 1651 3235 7132
1500KVA 1640 14500 2150 1570 2210 5835 12864
2000KVA 2160 20645 2220 1600 2380 6430 14175
2500KVA 2680 23786 2330 1650 3070 8865 19544
3000KVA 3300 30300 2460 1850 3260 11300 24912
3735KVA 4125 37875 2680 2060 4080 14400 31746

 

 

2550kVA Three Phase Pad Mounted Transformer Production process

 

Coil Winding

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 6

 

Lead Wire Arrangement & Connection

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 7

 

Transformer Body Assembly

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 8

 

Final Testing

 

3 Phase Pad Mounted Transformer 2550kVA 34.5KV To 480V Oil Immersed Power Transformer UL Listed 9