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1000kva Three Phase Pad Mounted Transformer Step-Down 12470v To 480y/277

Basic Information
Place of Origin: CHINA
Brand Name: WINLEY
Certification: CE,ISO
Model Number: S-1000/12.47
Minimum Order Quantity: 1unit
Price: $5000-$150000
Packaging Details: Plywood case
Delivery Time: 30days
Payment Terms: T/T
Supply Ability: 1000set/month
Detail Information
Transformer Type: Pad Mounted Capacity: 1000Kva Or Customize
Primary Voltage: 12470V Or Customize Secondary Voltage: 480Y/277
Vector Group: DYN1 Frequency: 60Hz
Insulation Rating: Class E Insulation - 120°C, 248°F Ratings: Meets/Exceeds DOE 2016 Efficiency Ratings
High Light:

480y/277 Pad Mounted Transformer


1000kva Pad Mounted Transformer


12470v Pad Mounted Transformer

Product Description

1000kva Three Phase Pad Mounted Transformer Step-Down 12470v To 480y/277



Three phase pad mounted transformer is designed to use in underground distribution systems, Their sealedhigh-vollage and low-vollage safely compartmenls ensure their safe operation and reduce the risk of accidenls, making themideally suited for use in residential applicalions, tourist sites, hotels and other buildings. Pad mounted ransformers are placedinside a cabinet with doors and locks, usually located outdoors.


Main data


Transformer Type Pad Mounted, Compartmental-Type
Operation Step-Down Operation (Not Approved for Step-Up)
Phase Three Phase
Capacity 1 MVA (1000 KVA)
Vector Group DYN1
Primary Voltage 12470V
Primary Voltage Class 15 kV Class
Primary Phasor Delta
Primary BIL 95 KV
Secondary Voltage 480Y/277
Secondary BIL 30 KV
Frequency 60 Hz
Temperature Rise 65°C
Insulation Rating Class E Insulation - 120°C, 248°F
Cooling Class KNAN; Self-Cooled
Liquid Level Indicator Analog Dial Gauge
Temperature Indicator Analog Dial Gauge
Pressure/Vacuum Indicator Analog Dial Gauge
Winding Material Copper
Ambient Temperature Rating 40°C
Ambient Operating Temperature Range -40°C to +40°C (-50°F to +104°F)
Sound Level 58 dBA
Elevation (Altitude) 3300ft (1000 meters) Above Sea Level
Core Material Grain Oriented Steel
Enclosure Rating NEMA 3R Weatherproof Wiring Cabinet, Sealed Tank
Dimensions* 73-W x 69-D x 73-H
Ratings Meets/Exceeds DOE 2016 Efficiency Ratings
Efficiency % 99.20%
No Load Loss (in watts) +/- 1,300W
Full Load Loss (in watts) at 100% +/- 8,500W


Standard Features

60 Hz operation.
• 65°C average winding rise.
• Radial & loop feed arrangements.
• Dead and live front type of HV terminals.
• HV BIL 45 – 150 kV (Dead Front) 200 kV (Live Front).
• LV BIL 30 – 60 kV.
• Three-point latching of low-voltage door.
• High-voltage door, which can be opened only after
the low-voltage door is opened.
• Rigid steel partition.
• Transformer tank welded from cover to base.
• Permanent nameplate.
• One-inch NPT pipe cap filling provision.
• ANSI tank ground pads.
• One-inch drain valve and sampler.
• Automatic pressure-relief valve (35 SCFM).
• Tap changer with (2) 2.5% full capacity taps above
and below nominal.
• One 10”x18” (or 14”x25”) hand hole in transformer
tank cover.
• Painted olive-green color (Munsell 7GY 3.29/1.5).
• Designed, manufactured and tested in accordance
with the latest ANSI standards


Technical drawings


1000kva Three Phase Pad Mounted Transformer Step-Down 12470v To 480y/277 0




Tachnical Data for Three Phase Pad Mounted Transformer
Rated Capacity Loss(w) Dimension(mm) Weight(kg)
No-load Loss(W) On-load Loss W D H Oil Weight (L) Total Weight (KG)
45kVA 160 1000 1730 990 1270 416 950
75kVA 180 1250 1730 990 1270 435 1020
150kVA 280 2200 1730 1245 1270 473 1225
300kVA 480 3650 1830 1295 1270 605 1655
500kVA 680 5100 2260 1345 1270 720 2110
750kVA 980 7500 2260 1448 1628 1022 2950
1000kVA 1150 10300 2260 1500 1625 1325 3720
1500kVA 1640 14500 2210 1470 2150 1552 4672
2000kVA 2160 20645 2380 1600 2220 1855 5670
2500kVA 2680 27786 3070 1650 2330 2006 6580
3000kVA 3300 30300 3260 1850 2460 2336 7500
3750kVA 4125 37875 4080 2060 2680 2650 8450


Production process


150KVA Three Phase Pad Mount electrical  Transformer Oil Immersed 13.8KV 4

150KVA Three Phase Pad Mount electrical  Transformer Oil Immersed 13.8KV 5

150KVA Three Phase Pad Mount electrical  Transformer Oil Immersed 13.8KV 6




1. Q: Can I have a sample order?

A: Yes, we welcome sample order to test and check quality.

2. Q: What is the lead time?

A: Mass production time 15-25 days.

3. Q: How long is the warranty?

A: 24 monthes from B/L. If there are any accessory problems,just provide the photos of damaged accessory,then we will provide free service. According to the number of products,we will provide easily damaged accessories for free. we also can provide technical support if you need.

4. Q: Is OEM/ODM available?

A: Yes,it is! We are manufacturer with our own R&D team, we can customize products according to customer's drawing or requirements.

Customized services:

a. Customized color and special function.

b. Customized box.

c. Print customer's logo.

d. Your other ideas about product, we can help you design and put them into production. The above customized services must be confirmed before production.

5. Q: How to control the products quality?

A: Our company owns the core technology ,all kinds of products hold CE certificate. We have professional engineers. Workers are strictly required to make products according to the drawings. Each process has technical instructors.The QC supervisors will regularly inspect the production. We will do products performance tests during production, and comprehensive quality tests when the products is completed.

Contact Details

Phone Number : 86-18650108051

WhatsApp : +8618650108051