Buy Premium Grade Electrical Insulation Paper Online With High Strength and Tear Resistance

Electrical insulation paper is an essential material for preventing electrical breakdowns in conductive parts of motors, transformers, generators, and other electrical equipment. It provides high thermal stability and higher dielectric strength to prevent current leakage for safe functioning of the equipment. However, if you want to order electrical insulation paper online in bulk, it is a very careful process that requires accounting for various factors such as thickness and properties. Most importantly, you will need a trusted manufacturer and supplier such as Khatema Fibres to provide the best quality paper with consistency throughout the batch. We provide a wide range of electrical insulation papers in different sizes, GSM, thickness, dielectric strength, and thermal stability.

Types of Electrical Insulation Paper Available 

Electrical Kraft Paper

Electrical kraft paper is mainly used for transformer windings and inter-winding barriers. It is a dense paper that serves as the best insulation material for isolating conductive parts from one another to prevent current leakage. With high dielectric strength, it is commonly used where insulation thickness is necessary between parts.

Electrical Crepe Paper

Crepe insulation paper has a unique design with a crinkled structure which makes it both expandable up to an extent and flexible, due to which it is considered better than flat paper. The stretchable design makes it easy to wrap around the irregular conductive parts like coil ends and transformer leads. 

Presspaper

Presspaper is a highly dense sheet material used in applications that require both insulation and thermal stability. This paper is placed between the conductive parts for preventing current leakages as barriers or spacers.

Diamond Dotted Pape

Diamond dotted paper (DDP) is an electrical grade insulation paper that is coated with epoxy resin, which specifically boosts its thermal stability. It offers higher mechanical stability after the resin bonds with the winding layer during the manufacturing process after heating up. Diamond dotter paper is most commonly used for transformer winding and interlayer insulation applications. 

Where Is Electrical Insulation Paper Used?

Premium electrical insulation paper is used across several electrical manufacturing applications, including:

• Oil-immersed transformer windings
• Layer and inter-winding insulation
• Transformer lead and terminal wrapping
• Electric motor windings
• Generator insulation
• Coils and winding assemblies
• Cable insulation
• Electrical barriers and spacers

Which Electrical Insulation Paper Should You Choose?

The right choice depends primarily on the application.

What Should You Ask an Online Supplier?

Before placing a bulk order, confirm:

• What grade is recommended for the application?
• What thicknesses are available?
• What are the dielectric and mechanical specifications?
• What is the moisture specification?
• Which IEC or other applicable standard does it meet?
• Is a technical datasheet available?
• Can custom widths or slit rolls be supplied?
• What is the MOQ?
• Can the same specification be maintained for repeat orders?

How to Buy the Best Electrical Insulation Paper in Bulk?

Electrical insulation papers are of various types available in different sizes, GSM, physical properties, thickness, and physical formats at Khatema Fibres. Here are the major points to check when you order it in bulk:

Paper Grade and Material

Identify which type of paper you required for the application. You will have multiple options like Kraft, crepe, presspaper and DDP to choose from. They have different manufacturing processes and physical properties that you can choose based on your application.

Thickness

You will have to choose the accurate paper thickness as it directly affects the installation process. The paper should not be too thin to reduce the mechanical stability or too thick to not fit between the winding.

Dielectric Strength

Make sure to choose the electrical insulation paper that has more than required dielectric strength so that it does not break while handling electrical stress from the equipment. To ensure you have selected the right paper, request the manufacturer to provide its test data for handling dielectric strength.

Moisture Content

Moisture is a critical consideration while selecting an electrical insulation paper, specially for the transformers. Excessive moisture may result in reduced insulation performance and quick breakdown of the paper.

Thermal Stability

The selected paper must be able to handle the equipment’s operable thermal temperature. For the best results, it should have a higher thermal stability to provide better insulation performance.

Dimensions

Choose the paper sheets with accurate dimensions for perfect mechanical stability and reduce wastage. You can look for:

• Roll or sheet format
• Width
• Thickness
• Roll length
• Core dimensions
• Slitting requirements
• Edge quality
• Quantity