IEEE Standard UL Certificated 25Kva 1 Phase Pad Mounted Power
Distribution Transformer 12470V
Single-phase pad-mounted transformers are compact, self-contained
electrical devices primarily used in residential and light
commercial settings. Their primary application is to step down the
high-voltage electricity supplied by the utility company to a lower
voltage suitable for home or small business use.
WINLEY single‑phase transformers are designed to meet or exceed the
DOE 2016 energy‑efficiency requirements and relevant IEEE, ANSI,
CSA, IEC, UL/cUL and NEMA standards.
Main data
| Transformer Type | Pad Mounted, Compartmental-Type II |
| Transformer Configuration | Liquid Filled Pad Mounted |
| Transformer Feed Type | Loop Feed |
| Phase | Single Phase (Connects to 3-Phase electrical grid) |
| Capacity | 25 KVA |
| Vector Group | II6 |
| Primary Voltage | 12470GrdY/7200 |
| 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 | KNAN; Self-Cooled |
| Efficiency Standard(s) | Meets DOE 2016 Standards, Meets ANSI/IEEE Standards |
| K-Factor Rating (Harmonic Mitigation) | K-1 (Standard) |
| Winding Material | Copper |
| Ambient Temperature Rating | 40°C |
| Sound Level | 48 dBA |
| Elevation (Altitude) | 3300ft (1000 meters) Above Sea Level or Below |
| Core Material | Grain Oriented Steel |
| Tank Material | Coated Steel |
| Efficiency | 98.80% |
Drawing
Standard Features
• Meet or exceeds ANSI®, IEEE® and NEMA® standards
• Meets DOE Energy Efficiency Standard 10 CFR Part 431 for
distribution transformers
• Tank coating exceeds IEEE Std C57.12.28™-2005 and IEEE Std
C57.12.29™-2005 standards (stainless steel units only)
• Full compliance with IEEE Std C57.12.28™-2005 standard enclosure
integrity requirements
• Laser engraved nameplate
• Recessed stainless steel lifting provisions
• Tank grounding provisions
• Automatic pressure relief device
• Electrical grade mineral oil
• Hinged door with stainless steel hinge pins and barrels
• Floating lock pocket for easy alignment
• Captive stainless steel pentahead door locking bolt
• Oil fill and drain provisions
• Removable sill
• Welded domed tank cover
• High-voltage bushing wells - 200 A
Accessories
• 4 position loadbreak
• Multiple voltages or taps
• Externally-operable multiple voltage or tap changer switches for
safe operation
• Stainless steel tank, tank bottom, sill, door, and/or hardware
• Various spades and terminals available for secondary bushings
• High-voltage bushing inserts
• Ground connectors
• One piece high-voltage bushings
• Envirotemp™ FR3™ fluid
• Loadbreak switches
• Drain/sampling valve
• Pressure vacuum gauge
• Liquid level gauge
• Temperature gauge
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.
