The 315kVA Oil Immersed Transformers are essential devices that convert electrical energy from one voltage level to another, enabling the efficient transmission and distribution of power across various systems. Oil-immersed transformers, in particular, have become industry favorites due to their superior cooling and insulation capabilities, which extend their lifespan and reduce maintenance requirements. The integration of renewable energy sources, such as wind and solar, requires transformers that can handle the variable output of these sources.
The 315kVA Oil Immersed Transformer is a high-performance distribution transformer designed to provide safe, stable, and efficient power conversion for medium and low voltage electrical networks. It is widely applied in industrial power systems, commercial facilities, renewable energy projects, utility distribution networks, and infrastructure developments.
The transformer adopts a high-quality silicon steel core, optimized magnetic circuit design, and advanced manufacturing technology to minimize no-load losses and improve overall energy efficiency. The winding structure is manufactured using high-conductivity copper or aluminum conductors, ensuring excellent electrical performance, strong mechanical strength, and reliable operation under various load conditions.
Using premium transformer oil as both an insulation and cooling medium, the 315kVA oil immersed transformer provides effective heat dissipation and maintains stable operating temperatures during continuous operation. The robust oil tank structure offers excellent protection against moisture, dust, and harsh outdoor environments, making it suitable for long-term installation in different climate conditions.
Each transformer undergoes strict quality control and complete routine testing before delivery, including insulation resistance testing, voltage ratio testing, winding resistance testing, load loss testing, no-load loss testing, and dielectric performance testing. This ensures high reliability, safety, and long service life throughout the product lifecycle.
Designed for durability and easy maintenance, the 315kVA oil immersed transformer delivers a cost-effective power solution with low operating costs, high efficiency, and dependable performance for global electrical distribution applications.
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].
Project Location: East Africa
Application: Industrial Plant Power Supply
Product: 315kVA Three Phase Oil Immersed Transformer
With the continuous development of local industries, the customer required a reliable power distribution solution to support factory production equipment and daily electrical loads. The project site faced challenges including unstable grid conditions, high ambient temperatures, and long-term outdoor operation requirements.
To ensure stable and efficient power supply, the customer selected our 315kVA Oil Immersed Transformer for the medium-voltage to low-voltage distribution system.
We supplied a 315kVA oil immersed distribution transformer with optimized core design, durable oil insulation system, and reinforced tank structure. The transformer was integrated into the customer’s power distribution network to provide reliable electricity for industrial equipment, lighting systems, and auxiliary facilities.
Before shipment, each transformer completed comprehensive factory testing, including insulation tests, voltage ratio tests, winding resistance tests, no-load loss tests, and load loss tests to ensure safe operation after installation.
| Rated Power | 315 kVA | |
| Rating Primary Voltage | 2.4 – 34.5kV | |
| Secondary Voltage | 480/277V 400/230V 380/220V Customized |
|
| Frequency | 50/60Hz | |
| Vector Group | Dyn11, Yyn0, Dyn5 | |
| 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 | 480 kg | |
| Total Weight | 1720 kg | |
| Outline Dimensions（L×W×H）in. | 1780 × 1300 × 1890（mm) | |
| HV Bushing |
| LV Bushing |
| Tap changer |
| Oil level gauge |
| Oil temperature indicator |
| Pressure relief device |
| Pressure vacuum gauge |
| Lifting hook for complete transformer |
| Name plate |
| Radiators |
| Oil upper filtering valve |
| Oil drain valve with 3/8″ sampler |
The 315kVA Oil Immersed Transformer is widely used in medium and low voltage power distribution systems, providing stable and efficient electricity supply for various industries and infrastructure projects.
Provides reliable power for factories, manufacturing plants, production lines, and heavy equipment, ensuring continuous operation and reducing power interruptions.
Used in solar power plants, wind farms, and energy storage projects for voltage conversion and grid connection, supporting efficient renewable energy transmission.
Suitable for shopping centers, office buildings, hotels, hospitals, and public facilities requiring safe and stable power distribution.
Applied in urban and rural electrical distribution networks, substations, and municipal power projects to deliver dependable electricity to end users.
Designed for demanding environments, providing reliable power support for mining sites, oil fields, processing plants, and remote industrial facilities.
Used for temporary or permanent power supply in large construction sites, residential developments, and infrastructure projects.
Typical Applications:
✔ Industrial Plants
✔ Solar & Wind Power Stations
✔ Commercial Facilities
✔ Utility Distribution Systems
✔ Mining & Heavy Industries
✔ Infrastructure Projects
315kVA Oil Immersed Transformer — Reliable Power Distribution for Global Industrial and Energy Applications.
The 315kVA Oil Immersed Transformer is mainly used for medium and low voltage power distribution in industrial plants, commercial buildings, renewable energy projects, utility networks, and infrastructure applications.
The transformer voltage can be customized according to project requirements, such as 11kV/0.4kV, 13.8kV/0.48kV, 22kV/0.4kV, or other voltage ratings.
Oil immersed transformers provide excellent insulation, efficient cooling, strong overload capability, reliable performance, and long service life, making them suitable for continuous power distribution applications.
Yes. With a robust tank structure and proper protection configuration, it can be installed outdoors and operate reliably in different environmental conditions.
Each transformer undergoes strict factory testing, including no-load loss test, load loss test, insulation resistance test, winding resistance test, voltage ratio test, and dielectric strength test.
Yes. We provide OEM customization options including voltage ratio, frequency, winding material, accessories, enclosure design, and installation requirements.
The transformer is manufactured according to international standards such as IEC 60076, ensuring safety, reliability, and stable performance.
With proper installation and maintenance, the transformer can provide reliable operation for 25–30 years or more under normal working conditions.
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