UL/cUL Certification 100Kva Single Phase Pad mounted Transformer 12KV DOE 2016 CSA ANSI IEEE Standards Residential Transformer
This 100 KVA pad-mounted transformer combines robust design with advanced functionality, tailored for efficient power distribution in urban and industrial settings. Featuring a 12000V Delta primary and 240/120V secondary voltage configuration, it seamlessly connects to 3-phase grids while delivering single-phase power, ideal for commercial and residential applications.



The single-phase pad-mounted transformers manufactured by WINLEY not only fully comply with but also exceed ANSI, DOE, IEEE, and CSA standards. With UL/cUL certifications, these transformers stand out for their compact size, lightweight design, low noise operation, minimal power losses, as well as high safety and reliability. They are ideally suited for a wide range of applications, including residential communities, commercial centers, hospitals, parks, and schools.

Main data
Transformer Type | Pad Mounted, Compartmental |
Transformer Configuration | Liquid Filled Pad Mounted |
Transformer Feed Type | Loop Feed |
Phase | Single Phase (Connects to 3-Phase electrical grid) |
Capacity | 100 KVA |
Vector Group | II6 |
Primary Voltage | 12000V |
Secondary Voltage | 120/240 (L-N-L) |
Frequency | 60 Hz |
Temperature Rise | 65°C |
Insulation Rating | Class E Insulation - 120°C, 248°F |
Cooling Class | ONAN; Self-Cooled |
Efficiency Standard(s) | Meets DOE 2016 Standards, Meets CSA Standards Meets ANSI/IEEE Standards |
Winding Material | Copper |
Ambient Temperature Rating | 40°C |
Ambient Operating Temperature Range | -40°C to +40°C (-50°F to +104°F) |
Sound Level | 51 dBA |
Efficiency | 99.00% |
No Load Loss (in watts)* | +/- 270W |
Load Loss (in watts)* | +/- 1100W |
Technical drawings
Built with copper windings, biodegradable natural vegetable oil ester insulating fluid , front-access 5-position tap changer, bayonet fused primary protection with isolation links, and a high-voltage elbow surge arrestor. Robust terminations, pressure-relief device, analog gauges, and a quiet 51 dBA sound level make it ideal for reliable, eco-friendly distribution use.

Ratings
- Meets/Exceeds DOE 2016 Efficiency Ratings
- Meets/Exceeds CSA Efficiency Ratings
- Complies with ANSI / IEEE C57.12.00
- Complies with ANSI / IEEE C57.12.21
- Complies with ANSI / IEEE C57.12.25
- Complies with ANSI / IEEE C57 12.28
- Complies with ANSI / IEEE C57 12.29
- Complies with ANSI / IEEE C57 12.35
- Complies with ANSI / IEEE C57 12.38
- Complies with ANSI / IEEE C57.12.70
- Complies with ANSI / IEEE C57.12.110
- Complies with ANSI / IEEE C57.12.131
- Complies with ANSI / IEEE C62.11
- Complies with ANSI / IEEE C62.22
- Complies with ANSI / IEEE 386
- Complies with ANSI / IEEE C2
- Complies with ANSI / IEEE C37.47
- Complies with ANSI Z535.4
- Complies with ASTM D3487
- Complies with ASTM D6871
- Complies with NEMA 260-1996
- Complies with 10 CFR Part 431
- Complies with CSA C2.1-06
- Complies with CSA C50
- Complies with CSA C88
- Complies with CSA C88.1
- Complies with CSA C88-16
- Complies with CSA C227.3
- Complies with CSA C802.1
- Complies with CSA C802.2
- Complies with CSA C802.3
Specification
Single phase Pad mounted Transformer Specification |
Rating | High voltage(kV) | No Load Loss | On load Loss | Height | Depth | Width | Oil Weight(kg) | Total Weight(kg) |
(kVA) | (mm) | (mm) | (mm) |
15 kVA | 34.5/19.92 13.8/8 13.2/7.6 12.47/7.2 or others | 50 | 195 | 840 | 740 | 610 | 45 | 294 |
25 kVA | 80 | 290 | 840 | 740 | 610 | 68 | 362 |
37.5 kVA | 106 | 360 | 840 | 760 | 610 | 75 | 476 |
50 kVA | 135 | 500 | 840 | 810 | 610 | 93 | 553 |
75 kVA | 190 | 650 | 840 | 860 | 610 | 132 | 672 |
100 kVA | 280 | 1010 | 910 | 1200 | 965 | 230 | 714 |
167 kVA | 435 | 1530 | 1000 | 1200 | 965 | 265 | 913 |
250 kVA | 550 | 2230 | 1250 | 1300 | 1430 | 325 | 1106 |
Production process


FAQ
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.