Table of Contents

1. Introduction
2. Principles of Operation
3. Applications of Three-Phase Oil-Immersed Transformers
4. Advantages of Oil-Immersed Transformers
5. HOLEEP Company Solutions
6. Numerical Analysis and Parameters
7. Conclusion
8. References

Introduction

Three-phase oil-immersed transformers are pivotal components in electrical power distribution networks. They facilitate the transformation of voltage levels while ensuring the efficient functioning of power systems. These transformers are extensively used in various sectors, including industrial and commercial applications.

Principles of Operation

Three-phase oil-immersed transformers operate on the principle of electromagnetic induction. The primary and secondary windings are submerged in insulating oil, which acts both as a coolant and an insulator. This arrangement enhances the transformer’s efficiency and durability.

Applications of Three-Phase Oil-Immersed Transformers

These transformers are utilized in a wide range of applications:

• Power distribution in urban and rural areas.
• Industrial power systems for manufacturing and processing plants.
• Voltage regulation in renewable energy plants.
• Supplying power to commercial complexes and institutions.

Advantages of Oil-Immersed Transformers

Oil-immersed transformers offer several benefits over other types:

• Enhanced Cooling: The oil improves heat dissipation, allowing the transformer to handle higher loads.
• Increased Insulation: Oil provides excellent insulation properties, reducing the risk of electrical failures.
• Durability: The design is robust, making them suitable for various environmental conditions.

HOLEEP Company Solutions

HOLEEP is a leading provider of advanced transformer solutions, offering customized three-phase oil-immersed transformers tailored to specific industry needs. Their transformers are renowned for their reliability and efficiency.

• Custom design according to client specifications.
• State-of-the-art manufacturing processes.
• Comprehensive testing and quality assurance.
• After-sales support and maintenance services.

Numerical Analysis and Parameters

Key parameters for a typical three-phase oil-immersed transformer include:

• Rated Power: 500 kVA
• Primary Voltage: 11 kV
• Secondary Voltage: 415 V
• Efficiency: 98%
• Cooling Type: ONAN (Oil Natural Air Natural)

This configuration is optimal for medium to large-scale electrical systems.

Conclusion

Three-phase oil-immersed transformers are essential in modern electrical systems, offering advantages in efficiency, insulation, and reliability. Companies like HOLEEP continue to innovate in this field, providing robust solutions for diverse applications.

References

• Electric Power Systems: A Conceptual Introduction by Alexandra von Meier.
• IEEE Standards for Transformers.
• Manufacturer datasheets and technical specifications.
• HOLEEP Company Product Brochure.