Technical Specifications and Load Capacity Analysis of 200kVA Oil-Filled Transformer

Understanding the technical specifications and load capacity analysis of 200kVA oil-filled transformer is crucial for engineers, designers, and procurement professionals working with medium-voltage power distribution.

 

As a professional manufacturer, GNEE provides comprehensive insights into the design parameters, performance characteristics, and load-handling capabilities of 200kVA oil-filled transformers to help you make informed decisions for your projects.

 

This article breaks down the essential specifications, explains how load capacity impacts performance, and offers guidance on selecting the right transformer for your application.

 

What Is a 200kVA Oil-Filled Transformer?

 

A 200kVA oil-filled transformer is a medium-power distribution transformer where the core and windings are immersed in insulating oil. This oil serves as an electrical insulator and cooling medium, enabling the transformer to operate efficiently under continuous load.

 

These transformers are widely used in industrial plants, commercial facilities, utility networks, and renewable energy applications requiring stable voltage transformation and reliable performance.

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Key Technical Specifications of 200kVA Oil-Filled Transformer

To accurately assess any transformer, it's important to understand its core technical specifications and performance parameters.

 

Rated Power and Voltage Levels

• Rated Capacity: 200 kVA
• Primary Voltage: typically 11kV / 22kV / 33kV (customizable)
• Secondary Voltage: typically 415V (or according to customer requirement)
• Frequency: 50 / 60 Hz

• Cooling and Insulation

• Cooling Method: ONAN (Oil Natural Air Natural)
• Insulation Medium: Mineral Transformer Oil
• Temperature Rise Limits: as per IEC / ANSI standards

 

Winding Material and Configuration

• Winding Material: Copper (standard) or Aluminum (optional)
• Vector Group: Dyn11 / Yyn0 / others upon request

These specifications determine how the transformer performs under load, how efficiently it dissipates heat, and how it integrates with your power network.

 

Load Capacity Analysis of 200kVA Oil-Filled Transformer

 

Load capacity defines how well a transformer can handle electrical loads without overheating or suffering excessive losses.

 

Understanding Load Ratings

• Load capacity analysis involves evaluating how much continuous and peak load a transformer can safely support:
• Continuous Load Capacity: Corresponds to the rated 200kVA capacity.
• Peak Load Handling: Dependent on design margin, cooling efficiency, and ambient conditions.
• Temperature Rise: Must be within limits to avoid damage to insulation.

 

Transformers are typically designed to operate at 100% rated load continuously, with brief overload handling ability depending on cooling design and application environment.

 

Efficiency and Losses

• No-load Loss: Represents core losses when the transformer is energized without load
• Load Loss: Represents copper loss due to current flowing through windings
• Efficiency: Ratio of output power to input power, important for total cost of ownership

 

Higher efficiency transformers generate less heat, which improves load-handling capability and reduces operational cost.

 

Practical Considerations for Load Matching

 

Choosing a transformer that's correctly sized for your load prevents premature aging, overheating, and energy waste.

 

Load Factor and Diversity

• Load Factor: Actual average load vs rated load
• Diversity Factor: Considering multiple loads that do not operate simultaneously

Designing for realistic load profiles improves reliability and reduces unnecessary transformer oversizing.

 

Ambient Conditions

Ambient temperature and installation environment affect transformer cooling efficiency. Oil-filled designs help maintain stable operations under varying temperature loads.

 

Technical Specifications Table – 200kVA Oil-Filled Transformer

Parameter	Typical Specification
Rated Power	200 kVA
Primary Voltage	11 / 22 / 33 kV (custom)
Secondary Voltage	415 V (or custom)
Frequency	50 / 60 Hz
Cooling Method	ONAN (Oil Natural Air Natural)
Insulation Medium	Mineral Transformer Oil
Winding Material	Copper (Standard)
Vector Group	Dyn11 / Custom
Temperature Rise	As per IEC & ANSI Limits
Load Loss	Standard Values per IEC/ANSI
Efficiency	High Efficiency Design
Standards Compliance	IEC / ANSI / CE (optional)

 

Why GNEE's 200kVA Oil-Filled Transformer Stands Out

GNEE has extensive experience in designing, manufacturing, and exporting oil-filled transformers with strict quality control and testing.

 

Manufacturer Advantages

• Direct factory supply with competitive pricing
• Customized designs based on load profile and environment
• Full range of electrical and mechanical tests before shipment
• Comprehensive technical and after-sales support
• Export experience for global markets

Our team can assist you in analyzing load profiles and recommending the best transformer configuration for your project.

 

Conclusion

A thorough technical specifications and load capacity analysis of 200kVA oil-filled transformer is key to selecting the right product that ensures performance, reliability, and safety in your power system.

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Partner with GNEE to get a tailored transformer solution that matches your technical requirements and load demands.

👉 Contact us now to discuss your project and get a detailed quote today.