333kVA Single Phase Pad Mounted Transformer is a reliable outdoor distribution transformer designed to step down medium voltage electricity to low voltage for residential, commercial, and utility power distribution systems.With a compact pad-mounted structure, high-efficiency core design, and durable enclosure, it provides safe, stable, and long-term power supply solutions for underground and outdoor distribution networks.
The 333kVA Single Phase Pad Mounted Transformer is a high-performance electrical transformer designed for reliable power distribution in industrial and commercial applications. With a robust, weather-resistant enclosure, it is ideal for outdoor installations and offers efficient step-down voltage conversion. This transformer features a 333kVA capacity, providing reliable power to meet the demands of single-phase systems, and comes with customizable primary and secondary voltage configurations.
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].
USA Residential Distribution Project
Product: 333kVA Single Phase Pad Mounted Transformer
Application: Residential Underground Power Network
Voltage: 13.8kV / 120-240V
Frequency: 60Hz
Project Overview
Supplied 333kVA Single Phase Pad Mounted Transformers for a residential power distribution project, providing safe and reliable electricity supply with compact outdoor installation and long-term stable operation.
Project Highlights
✔ Reliable power distribution
✔ Outdoor weather-resistant design
✔ Low maintenance operation
✔ Compliant with utility requirements
Solution Value
Delivered a customized transformer solution to support efficient and stable power distribution for residential communities.
| Rated Power | 333 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 | 400 kg |
| Total Weight | 2000 kg |
| Outline Dimensions（L×W×H）in. | 1300×1100×1400(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 |
333kVA Single Phase Pad Mounted Transformer is designed for reliable outdoor power distribution in:
Ideal for outdoor installation with safe operation, low maintenance, and long service life.
It is an outdoor ground-mounted distribution transformer designed to step down medium voltage power to low voltage for residential, commercial, and utility distribution systems.
It is commonly used in residential communities, underground distribution networks, commercial facilities, renewable energy projects, and rural electrification systems.
Common configurations include 11kV, 13.8kV, 15kV, 24.9kV, and 34.5kV primary voltage with customized secondary voltage options such as 120/240V and 240/480V.
The transformer can be manufactured according to international standards, including IEC 60076 and IEEE C57 series, based on customer requirements.
Yes. The pad-mounted design features a durable, weather-resistant enclosure for safe and reliable outdoor operation.
Yes. We provide customized solutions including voltage ratio, frequency, accessories, protection devices, and enclosure design.
Each transformer undergoes factory testing, 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 more than 25 years of reliable operation.
We provide factory-direct manufacturing, customized transformer solutions, strict quality control, and technical support for global utility and EPC projects.
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