250 kVA single phase pad mounted transformer operates safely, reliably, and efficiently and can be installed indoors and outdoors. The industrial transformer has a rated power of 250 kVA, a primary voltage of 27600/16000V single-phase and a secondary voltage of 120/240V single-phase.The transformer has a primary loop feed and dead front primary connections.
250kVA Single Phase Pad Mounted Transformer is an outdoor ground-mounted distribution transformer designed to reduce medium voltage electricity to low voltage for safe and reliable power distribution.
It is widely used in residential communities, commercial facilities, rural electrification projects, underground power networks, and utility distribution systems where a compact, secure, and low-maintenance transformer solution is required.
Manufactured with high-quality core materials, copper/aluminum windings, and durable enclosure design, this transformer provides excellent electrical performance, energy efficiency, and long service life.
Zisheng are a professional 19+ years manufacturer in producing Oil-Immersed Transformers, Compact Substation, Pad Mounted Transformers, Pole Mounted Transformers and Dry Type Transformers. We own the certificates of ISO/CE/IEC 60076 and TUV Rheinland.
Transformers undergo rigorous FAT and type testing, support voltage/capacity customization. Welcome to consult for Catalog and Product. you can contact us at email [email protected].
United States – Residential Power Distribution Project
A local utility company required a reliable distribution solution for a new residential development area. The project needed compact outdoor transformers that could provide stable power supply while meeting underground distribution requirements and local utility standards.
250kVA Single Phase Pad Mounted Transformer
| Item | Specification |
|---|---|
| Transformer Type | Single Phase Pad Mounted Transformer |
| Rated Capacity | 250kVA |
| Primary Voltage | 13.8kV |
| Secondary Voltage | 120/240V |
| Frequency | 60Hz |
| Cooling Type | ONAN |
| Insulation Medium | Mineral Oil |
| Installation | Outdoor Ground Mounted |
| Standard | IEEE C57 Series |
The customer required transformers with:
We supplied customized 250kVA Single Phase Pad Mounted Transformers featuring:
Optimized silicon steel core structure reduced energy losses and improved operating efficiency.
The steel cabinet with corrosion-resistant coating ensured reliable outdoor operation in different environments.
Each unit completed routine electrical tests to verify performance, safety, and reliability before delivery.
✔ Reliable power supply for residential customers
✔ Reduced installation and maintenance requirements
✔ Improved safety of underground distribution networks
✔ Delivered according to project schedule
As a professional transformer manufacturer, we provide:
| Rated Power | 250 kVA |
| Rating Primary Voltage | 11950Delta or Customized |
| Secondary Voltage | 480-240V 240-120V 277V Customized |
| Frequency | 50/60Hz |
| Vector Group | Ii0,Ii6 |
| Winding Material | Aluminum/Copper |
| Efficiency | As IEEE,Doe 2016,CAS Std or Customized |
| Impedance Voltage | Nominal 2% or Customized 1.1-5.75% |
| Altitude | ≤1,000m or Customized |
| Color | ANSI 70 Light gray/Munsell 7GY3.29/1.5 or customized etc |
| Tank material | Mild Steel, 304 Stainless Steel |
| Insulating Oil Weight | 325 kg |
| Total Weight | 1106 kg |
| Outline Dimensions（L×W×H）in. | 1430×1300×1250(mm) |
| Lifting Lug | ELSP Fuse |
| Hinged Door | BAY-O-NET Fuse |
| Parking Bracket | Tap Changer |
| Tank Cover | Oil Level Gauge |
| L.V Bushing (4-Hole ) | Pressure Relief Valve |
| Two/Four Position Load break Switch | Vacuum Pressure Gauge |
| HV Grounding Copper Bar | Terminal Block |
| Temperature Indicator | Door Handle |
| H.V Bushing Well | Ground Strap |
| Grounding Copper Bar | Nameplate |
| 1″‘Drain Valve With 3/8″ Sampler | Non-PCB decal |
| 1″ Upper Fill Valve Filter Press Connection | High Voltage Warning Signs |
250kVA Single Phase Pad Mounted Transformer is widely used for reliable outdoor power distribution in:
Designed for safe installation, low maintenance, and long-term reliable operation.
It is an outdoor ground-mounted distribution transformer designed to convert medium voltage electricity into low voltage power for residential, commercial, and utility distribution systems.
It is widely used in residential communities, underground distribution networks, commercial buildings, renewable energy projects, and rural electrification systems.
Common configurations include 11kV, 13.8kV, 15kV, 24.9kV, and 34.5kV primary voltage with customized low voltage outputs such as 120/240V or 240/480V.
The transformer can be manufactured according to international standards, including IEC 60076 and IEEE C57 series, based on project requirements.
Yes. The pad-mounted design features a weather-resistant enclosure, providing safe and reliable operation in outdoor environments.
Yes. We provide customized solutions including voltage ratio, frequency, accessories, protection devices, and enclosure design.
Each transformer is factory tested, including winding resistance, ratio test, insulation test, no-load loss test, load loss test, and dielectric strength test.
With proper installation and maintenance, the transformer can provide reliable operation for more than 25 years.
We provide factory-direct manufacturing, customized transformer solutions, strict quality control, and technical support for global power projects.
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