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Equipment & Other Industries

FRP (Fiber Reinforced Polymer) Epoxy Pultruded Profiles are extensively utilized in transformers and electric motors due to their superior mechanical and insulating properties.These profiles are made by pultruding long strands of reinforcing fibers (commonly glass, carbon, or aramid) through an epoxy resin mixture, which is then cured in a continuous heated die to form solid, consistent profiles.

Key Features for Electrical Applications

1.High Electrical Insulation: The profiles provide excellent electrical insulation, crucial for preventing short circuits and ensuring the safety and efficiency of transformers and motors.

2.Thermal Resistance: They can withstand high temperatures, making them suitable for use in environments where electrical components heat up during operation.

3.Mechanical Strength: Despite their lightweight, these profiles offer significant strength and rigidity, essential for supporting structural components of motors and transformers.

Common Shapes and Aliases

1.Dogbone Profiles: These profiles are aptly named for their dogbone-like shape in cross-section, characterized by expanded ends connected by a narrower middle.   This unique design is particularly suited for slot insulation in electric motors and transformers, where it fits snugly into the slots of the stator or armature, providing both mechanical support and electrical insulation.

2.Corner Profiles: Another common shape designed to fit into the corners of electrical assemblies, enhancing structural integrity and insulation without compromising on space or weight.

3.Flat Sheets and Rods: Used for general insulation and support, flat sheets and rods can be cut and adapted to various parts of electrical machinery.


1.Transformers: In transformers, these profiles are used to insulate different winding stages from each other, and to reinforce the structure, helping to maintain physical integrity under operational stresses.

2.Electric Motors: In motors, dogbone profiles are often used within the slots of stators to isolate and support the winding coils from the metallic stator body, thereby preventing electrical shorts and providing mechanical stability.

The utilization of FRP Epoxy Pultruded Profiles in such critical applications highlights their indispensable role in modern electrical engineering, combining durability, reliability, and performance enhancements.

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