Transformer Phenolic Resin Paper Tube is a high-performance insulating material widely used in electrical equipment such as transformers. It provides reliable insulation, mechanical protection, and excellent thermal stability, ensuring the long-term safe operation of power systems.
Material Composition
The transformer Phenolic Resin Paper Tube is mainly made of high-quality insulating winding paper and phenolic resin. The winding paper serves as the base material and is impregnated with phenolic resin. After processes such as heating, rolling, pressing, baking, and curing, it forms a dense tubular structure. This composite structure gives the tube outstanding electrical insulation, heat resistance, and mechanical strength.
Applications
This type of Phenolic Resin Paper Tube is primarily used in transformers as an insulating structural component. It serves to isolate and protect internal wires and cables, preventing electrical leakage and short circuits, and ensuring the reliable operation of the equipment. It can also be immersed in transformer oil without performance degradation, thanks to its excellent oil resistance.
Key Features
High Dielectric Strength: The Phenolic Resin Paper Tube has a high dielectric constant and low dielectric loss, providing stable and efficient insulation performance in electrical systems.
Excellent Heat Resistance: The phenolic resin content allows the tube to maintain its shape and properties under high temperatures, suitable for long-term use in demanding transformer environments.
Superior Mechanical Strength: It offers high compressive, bending, and impact resistance, effectively protecting internal conductors and maintaining structural integrity.
Outstanding Oil Resistance: The material remains stable and insulating even when fully immersed in transformer oil, preventing performance deterioration.
Smooth Surface Quality: The surface of the tube is flat and free from defects such as delamination, bubbles, or rough edges. The inner wall may have minor wrinkles or marks that do not affect electrical performance, ensuring ease of installation and long-term reliability.
Technical Standards and Performance Requirements
According to national and industry standards such as GB/T 5132 and JB/T 3172, transformer Phenolic Resin Paper Tubes must meet strict technical requirements. These include density, water absorption, thermal stability, bending strength, compressive strength, dielectric loss factor, and both vertical and parallel layer breakdown voltages. Compliance with these standards ensures that the product delivers consistent performance, safety, and durability in electrical applications.
Conclusion
Transformer Phenolic Resin Paper Tube is an essential insulation material with excellent electrical, mechanical, and thermal properties. Its reliability and stability make it a key component in the manufacturing and operation of transformers and other electrical equipment, contributing significantly to the safety and efficiency of modern power systems.
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Transformer Phenolic Resin Paper Tube is a high-performance insulating material widely used in electrical equipment such as transformers. It provides reliable insulation, mechanical protection, and excellent thermal stability, ensuring the long-term safe operation of power systems.
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