The 300kVA Three Phase Pad Mounted Transformer is an oil-immersed distribution transformer designed for reliable outdoor power distribution systems. With a compact pad-mounted structure, high-efficiency core design, and secure enclosure, it provides stable voltage transformation for residential, commercial, industrial, and utility applications.
The 300kVA Three Phase Pad Mounted Transformer is a high-performance oil-immersed distribution transformer designed to provide safe, reliable, and efficient power distribution for medium-voltage networks. It is widely used in residential communities, commercial facilities, industrial plants, renewable energy projects, and utility distribution systems where dependable power supply is essential.
Featuring a compact ground-mounted structure, the transformer integrates the advantages of safety, durability, and easy installation. The enclosed cabinet design provides protection against harsh outdoor conditions, unauthorized access, and environmental impacts, making it suitable for urban and industrial environments.
The transformer adopts advanced core and winding technology to achieve low energy losses, high efficiency, and stable voltage regulation during continuous operation. The optimized oil cooling system ensures effective heat dissipation and improves operational reliability, extending the service life of the equipment.
Designed according to international standards such as IEC 60076 and ANSI C57.12, the 300kVA Three Phase Pad Mounted Transformer can be customized with different voltage ratings, frequency requirements, protection systems, and accessories to meet various project specifications.
With excellent performance, low maintenance requirements, and flexible configuration options, this transformer is an ideal solution for underground distribution networks, commercial power systems, industrial applications, and EPC projects worldwide.
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].
A 300kVA Three Phase Pad Mounted Transformer was supplied for an industrial manufacturing project in Africa to provide a stable and efficient power supply for production equipment and facility operations.
The transformer was installed in an outdoor distribution area, offering a compact and secure solution for medium-voltage to low-voltage power conversion. Its robust enclosure and oil-immersed cooling design ensure reliable operation under local environmental conditions with minimal maintenance requirements.
Location: Africa
Customer Type: Industrial Company / EPC Contractor
A 300kVA Three Phase Pad Mounted Transformer was integrated into a solar power project to support efficient energy collection and distribution. The transformer provides reliable voltage conversion between the medium-voltage grid and low-voltage equipment, ensuring continuous operation of the renewable energy system.
Application: Solar Energy Distribution
Capacity: 300kVA
Benefit: Reliable grid connection and efficient power management.
| Rated Power | 300 kVA |
| Rating Primary Voltage | 4.16-34.5kV or customized |
| Secondary Voltage | 480GrdY/277 208GrdY/120 400GrdY/230 Customized（208Y/120 V to 4,160 V） |
| Frequency | 50/60Hz |
| Vector Group | Dyn1/Yyn0/Dyn11/Dyn5 |
| Winding Material | Aluminum/Copper |
| Efficiency | As IEEE,Doe 2016,CAS Std or Customized |
| Impedance Voltage | Nominal 3.5% 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 | 900 L |
| Total Weight | 2600 kg |
| Outline Dimensions（L×W×H）in. | 1480×1250×1750 （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(15kV) | Ground Strap |
| Grounding Copper Bar | Nameplate |
| 1″‘Drain Valve With 3/8″ Sampler | IR Window |
| 1″ Upper Fill Valve Filter Press Connection | Terminal Box |
| Non-PCB decal | High Voltage Warning Signs |
Residential Power Distribution
The 300kVA Three Phase Pad Mounted Transformer is widely used in residential communities, apartments, and urban power networks to provide safe and stable electricity supply for homes and public facilities.
Commercial Buildings
Suitable for shopping centers, office buildings, hotels, and other commercial facilities requiring reliable medium-voltage to low-voltage power conversion.
Industrial Facilities
Provides dependable power distribution for factories, manufacturing plants, warehouses, and industrial equipment, supporting continuous production operations.
Renewable Energy Projects
Used in solar farms, wind power plants, and energy storage systems to efficiently connect renewable energy sources with distribution networks.
Utility Distribution Networks
Ideal for underground power distribution systems, municipal projects, and EPC infrastructure projects requiring compact, secure, and low-maintenance transformer solutions.
It is designed for outdoor power distribution applications, including residential communities, commercial buildings, industrial facilities, renewable energy projects, and utility distribution networks.
The transformer can be customized according to project requirements, including common configurations such as 11kV/0.4kV, 13.8kV/480V, 22kV/0.4kV, and 33kV/0.4kV.
Yes. The pad-mounted design features a weather-resistant and secure enclosure, providing reliable operation in outdoor environments with protection against dust, moisture, and unauthorized access.
It offers excellent cooling performance, high reliability, low operating noise, and long service life, making it suitable for continuous power distribution applications.
Yes. Our transformers can be designed and tested according to international standards such as IEC 60076 and ANSI C57.12.
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