What is an Oil Immersed Transformer?
Introduction
oil immersed transformer manufacturer
An oil immersed transformer is one of the most widely used types of transformers in power distribution systems. It uses insulating oil for cooling and insulation, ensuring efficient performance and long service life.
As a professional transformer manufacturer in China, we provide high-quality oil immersed transformers for industrial, utility, and infrastructure projects worldwide.
How Does an Oil Immersed Transformer Work?
An oil immersed transformer operates by immersing its core and windings in insulating oil. The oil serves two main functions:
Cooling: dissipates heat generated during operation
Insulation: prevents electrical faults and improves safety
The oil circulates naturally or through external cooling systems to maintain optimal temperature.
Key Features of Oil Immersed Transformers
Excellent heat dissipation
High efficiency under heavy loads
Long service life
Suitable for outdoor environments
Advantages of Oil Immersed Transformers
1. Superior Cooling Performance
Oil has better thermal conductivity than air, making it ideal for high-capacity transformers.
2. Cost-Effective for Large Projects
Oil immersed transformers are generally more economical for high-power applications.
3. Reliable and Durable
With proper maintenance, they can operate for decades.
Applications of Oil Immersed Transformers
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Oil immersed transformers are widely used in:
Power plants
Substations
Industrial facilities
Renewable energy systems
Oil Immersed Transformer vs Dry Type Transformer
Compared with dry type transformers, oil immersed transformers:
Handle higher loads
Provide better cooling
Are more suitable for outdoor installation
👉 However, they require more maintenance and have potential oil leakage risks.
How to Choose an Oil Immersed Transformer Supplier
When selecting a supplier, consider:
Manufacturing experience
Quality certifications
Customization capability
Delivery time
After-sales support
Choosing a reliable supplier ensures long-term performance and safety.
Get a Quote
Looking for a reliable oil immersed transformer manufacturer?
Contact us today for a fast quotation and customized solution:
👉 https://www.shendier.com/request-quotation
FAQ
What is the lifespan of an oil immersed transformer?
Typically 25–30 years with proper maintenance.
Is oil immersed transformer safe?
Yes, when properly installed and maintained, it is safe and widely used in outdoor applications.
