The 500kVA Three Phase Pad Mounted Transformer is a reliable and efficient oil-immersed distribution transformer designed for outdoor medium-voltage power distribution systems. With a compact ground-mounted structure, durable enclosure, and advanced low-loss technology, it provides stable voltage conversion for industrial, commercial, residential, and renewable energy applications.Designed for underground distribution networks and utility projects, this transformer offers excellent safety, easy installation, and long-term operating reliability in various environmental conditions.
The 500kVA Three Phase Pad Mounted Transformer is a high-performance oil-immersed distribution transformer designed for reliable power conversion and distribution in medium-voltage electrical networks. It is widely applied in industrial facilities, commercial buildings, residential communities, renewable energy projects, and utility distribution systems where continuous and stable power supply is required.
Featuring a compact ground-mounted design, this transformer integrates a secure enclosure, advanced cooling system, and high-efficiency electrical components to ensure safe and dependable operation in outdoor environments. The cabinet structure provides excellent protection against dust, moisture, weather conditions, and unauthorized access, making it an ideal choice for underground distribution networks and urban power systems.
The transformer adopts high-quality grain-oriented silicon steel core, optimized winding technology, and low-loss design to improve energy efficiency and reduce operating costs during long-term operation. The oil-immersed cooling system provides effective heat dissipation, maintaining stable performance under different load conditions and extending the service life of the transformer.
Designed according to international standards such as IEC 60076 and ANSI C57.12, the 500kVA Three Phase Pad Mounted Transformer offers flexible configuration options, including different voltage ratings, frequency requirements, connection methods, protection devices, and accessories. Each unit undergoes strict factory testing to ensure electrical performance, safety, and reliability before delivery.
With its combination of compact structure, high efficiency, low maintenance requirements, and strong environmental adaptability, the 500kVA Three Phase Pad Mounted Transformer is a dependable solution for modern power distribution projects and is widely preferred by utilities, EPC contractors, and industrial customers 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 500kVA Three Phase Pad Mounted Transformer was supplied for a commercial and industrial power distribution project in the Middle East. The transformer was installed in an outdoor underground distribution system to provide reliable medium-voltage to low-voltage power conversion for facility operations.
The project required a safe, compact, and low-maintenance transformer solution capable of operating in a demanding outdoor environment. With its sealed enclosure, efficient oil cooling system, and stable electrical performance, the transformer ensures continuous power supply for production equipment, lighting systems, and building facilities.
Location: Middle East
Customer Type: EPC Contractor / Industrial Facility Owner
| Rated Power | 500 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 | 1055 L |
| Total Weight | 2700 kg |
| Outline Dimensions（L×W×H）in. | 1.4×1.3×1.75（m） |
| 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 |
Industrial Facilities
The 500kVA Three Phase Pad Mounted Transformer is widely used in factories, manufacturing plants, warehouses, and processing facilities to provide stable power for machinery, production lines, and industrial equipment.
Commercial Buildings
Suitable for shopping centers, office complexes, hotels, and large public facilities requiring reliable medium-voltage to low-voltage power distribution.
Residential Communities
Provides safe and efficient electricity supply for apartments, housing developments, and urban residential power networks through underground distribution systems.
Renewable Energy Projects
Applied in solar farms, wind power plants, and energy storage projects to support efficient energy collection and grid connection.
Utility Distribution Networks
Ideal for municipal power systems, underground cable networks, and EPC infrastructure projects requiring compact, secure, and low-maintenance transformer solutions.
It is designed for medium-voltage power distribution in industrial facilities, commercial buildings, residential communities, renewable energy projects, and utility 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 durable and weather-resistant enclosure, allowing reliable operation in outdoor conditions with protection against moisture, dust, and environmental impacts.
It provides excellent cooling performance, high efficiency, stable operation, low maintenance requirements, and a long service life for continuous power distribution applications.
Yes. The transformer can be manufactured and tested according to international standards such as IEC 60076 and ANSI C57.12 to ensure safety and reliability.
Yes. We provide OEM/ODM services, including customized voltage levels, accessories, protection systems, testing reports, and technical support for global projects.
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