Transformerboard: Rigid insulation solutions for transformers

Transformerboard, also known as pressboard, is a rigid insulating material designed for demanding electrical applications, particularly in transformers and power distribution equipment. It ensures Reliable electrical insulation, high mechanical strength and durable stability in critical environments.

Used in the energy, rail, and industrial sectors, transformerboard is essential for ensuring the security, performance and longevity of high-voltage electrical systems.

At ADDEV Materials, we support manufacturers in the custom selection and transformation of transformerboard, in order to optimise their performance and integration into applications.

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Transformer board

Transformer board for electrical insulation

The transformerboard is used for:

  • Isolate the high-voltage components
  • to structure electrical systems
  • maintain isolation distances

It is essential in electrical transformers.

The transformer board is distinguished by its rigidity:

  • transformerboard
  • cellulose → flexible
  • aramide → high thermal performance
  • kraft → simple solution

The choice depends on the mechanical and electrical constraints.

Transformerboard (pressboard)

Le transformerboard est un matériau isolant rigide fabriqué à partir de fibres de cellulose compressées, conçu pour offrir une bonne isolation à des températures élevées. High-performance electrical insulation and high mechanical strength.

Its main features:

  • excellent dielectric properties
  • high structural rigidity
  • dimensional stability
  • High-voltage environment compatibility

This is an ideal solution for structural components in electrical systems.

Transformerboard versus other materials: What's the difference?

Le transformerboard is a structural solution for electrical insulation.

Transformerboard versus cellulose

  • hardboard
  • cellulose → flexible

Transformer board vs aramide

  • transformerboard → structure
  • thermal performance

Transformerboard vs. Kraft

  • Transformer Board High Mechanical Performance
  • kraft → simple solution

In a nutshell

  • choose one Transformer board for a Rigid, structural and high-voltage isolation
  • prioritise other materials for more flexible needs
Pressboard

Industrial applications of transformerboard

Electrical transformers

  • Insulation of windings
  • component separation
  • maintaining isolation distances

Energy

  • High-voltage equipment
  • distribution systems

Electrical equipment

  • Structural Insulated Components
  • mechanical supports

Rail

  • On-board electrical systems
  • sustainability

General industry

  • applications requiring rigidity and insulation

Transformer board is a key material for high-voltage applications.

Which industrial markets use this product?

How to choose the right transformer board

Required stiffness level

The choice depends on :

  • mechanical constraints
  • of the system structure

Critique des transformateurs.

Electrical performance

The material must:

  • ensure reliable insulation
  • to withstand electrical stresses

Essential for safety.

Operating environment

To be assessed according to:

  • temperature
  • humidity
  • mechanical stress

Ensures durability.

Industrial process compatibility

It's important to think ahead:

  • cutting
  • Cheese
  • integration

A tailored solution optimises production.

Our transformation capabilities for insulating papers

ADDEV Materials offers processing capabilities tailored for insulating papers:

Pourquoi choisir ADDEV pour votre transformerboard

ADDEV Materials supports you with complete technical expertise:

Multi-material expertise

Technical support

International industrial presence

Advanced converting capabilities

Cost / performance optimisation

We help you improve the reliability and safety of your electrical systems.

Need transformer board for your application

Every application requires a tailored solution.

Our experts can help you with :

  • identify the right material
  • optimise your design
  • secure your performance

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FAQ – transformerboard (pressboard)

It is a rigid insulating material used in electrical transformers.

It is used to isolate and structure electrical systems.

The transformer board is rigid, unlike flexible papers.

Yes, it is designed for high-voltage applications.

Yes, it can be cut and machined as required.

It offers rigidity, insulation and durability.

Yes, that is its main application.

The electrical and mechanical constraints must be analysed.