XuJue Insulation Paper

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XuJue is a leading professional manufacturer of electrical insulation paper since 1958. We have rich experience in R&D and production of insulation paper.

If you encounter difficulties in the selection and use of insulation paper, we are glad to help you

17/06/2026

⚡🌲 Is Electrical Pressboard still essential in modern transformers?
Many people think insulation innovation is only about new composites, resins, or films…
But in real transformer manufacturing, one material is still quietly doing the heavy lifting inside every unit:
👉 Electrical Pressboard
Used for decades — but still critical today.
🏭 In oil-immersed power transformers, pressboard is not just insulation. It is the structural backbone of the entire active part.
It is used for:
• Coil end support structures
• Winding spacing blocks
• Oil duct channels & spacers
• Lead support systems
• Mechanical reinforcement inside windings
⚡ Its real value is not only dielectric strength —
but mechanical stability under long-term electrical stress + oil environment
🔌 In high-voltage systems like instrument transformers and switchgear, it continues to ensure:
✔️ Controlled electric field distribution
✔️ Safe insulation distances
✔️ Reliable long-term operation under load
💡 The reality in the industry:
Even with advanced insulation materials available today, electrical pressboard remains one of the most cost-effective and reliable solutions for transformer internal structures.
Because in high-voltage engineering, stability matters more than novelty.
❓ Question for engineers & manufacturers:
Do you still prefer traditional pressboard-based insulation structures,
or are you gradually shifting to fully composite alternatives?
Let’s discuss.

10/04/2026

Why do engineers and buyers choose crepe paper for transformer insulation?

It’s not just a traditional material — it solves real performance challenges in electrical systems.

✅ Why flexibility matters
Crepe paper offers excellent softness and elongation, allowing it to wrap tightly around conductors without cracking.

✅ Why oil absorption is critical
In oil-filled transformers, strong oil absorption improves insulation reliability and heat dissipation.

✅ Why material quality makes the difference
Made from 100% sulphate wood pulp using a wet creping process, this material ensures consistent performance under demanding conditions.

✅ Why customization is key for procurement
Every project is different. Thickness and width can be customized to match your exact insulation design, reducing waste and improving efficiency.
💡 If you're sourcing reliable insulation materials, choosing a professional crepe paper manufacturer with customization capability is the smart move.
Website: https://ztelecpro.com/Insulation-Paper/Insulation-Crepe-Paper-for-transformer.html
WhatsApp/WeChat: +8618625523102
Email: [email protected]

27/03/2026

⚡ Aramid Paper for High Temperature Electrical Insulation
Aramid paper is widely used in high temperature electrical systems.
Advantages:
• Excellent thermal stability
• High dielectric strength
• Long service life

24/03/2026

In every oil-filled transformer, reliable performance isn’t just about materials — it’s about how heat flows and how insulation holds under pressure.
Oil Duct Spacing plays a critical role in both.
Engineered for oil-filled power transformers, distribution transformers, and traction transformers, our oil duct spacing solutions combine high-density presspaper with precision duct strips to ensure:
✔ Consistent oil flow for efficient cooling
✔ High compaction for mechanical strength under load
✔ Excellent dimensional stability during long-term operation
✔ Reliable insulation performance in critical environments
Unlike standard materials, our oil duct spacing is manufactured through advanced processing techniques, ensuring it maintains structure even under thermal and electrical stress.
💡 Why does it matter?
Because unstable duct spacing can lead to uneven cooling, insulation degradation, and ultimately reduced transformer lifespan.
👉 The right oil duct design = longer service life + higher operational safety
📩 Interested in learning more about Oil Duct Spacing? Feel free to contact us.
WhatsApp/WeChat: +8618625523102
Email: [email protected]

20/03/2026

⚡ The Role of Electrical Pressboard in Reliable Transformer Insulation Systems

In oil-immersed transformers, electrical pressboard is a key material that ensures long-term insulation performance and structural stability.

🔍 Typical applications:
• Insulation barriers between windings
• Spacers for optimized oil flow
• Structural insulation components

💡 Key advantages:
✔ Excellent compatibility with transformer oil
✔ High mechanical strength under pressure
✔ Reliable dielectric performance over time

By maintaining insulation integrity and supporting efficient cooling, pressboard plays a vital role in extending transformer service life and operational safety.

💬 What challenges are you facing with transformer insulation materials?
Are you focusing more on mechanical strength, oil compatibility, or long-term aging performance?

📩 Let’s connect — we’re open to discussing your application and providing tailored material solutions.

10/03/2026

⚡ Transformer Engineers: What Usually Causes Insulation Failure?

In many transformer failures, the root cause is not the electrical fault itself — but insulation degradation.

From industry experience, common factors include:

• Moisture contamination
• Thermal aging
• Poor insulation material matching
• Mechanical stress during short circuits

A typical transformer insulation system may involve materials like:

• Electrical Pressboard
• Laminated Wood
• Diamond Dotted Paper (DDP)
• Crepe Paper

Each material plays a different role in mechanical support, dielectric strength, and thermal stability.

💬 Question for transformer engineers here:

Which insulation material tends to cause the most issues in real projects?

Pressboard?
DDP?
Lead insulation?

Or is it more about design rather than materials?

Would love to hear real field experience 👇

06/03/2026

⚡ What insulation materials can you spot inside this transformer?

A reliable transformer depends on a well-designed insulation system.
In this dry-type transformer structure, several key insulation materials are working together:

🔹 Electrical Pressboard – structural insulation and spacing between windings
🔹 Crepe Paper – flexible insulation for leads and conductor protection
🔹 Electrical Laminated Wood – high mechanical strength for support structures
🔹 Insulation Tapes & Binding Materials – securing windings and maintaining insulation integrity

These materials help transformers withstand high voltage stress, mechanical forces, and thermal aging during long-term operation.

👀 Transformer engineers — what insulation materials do you commonly use in your designs?

Share your experience in the comments!

26/02/2026

How important are pressboard insulation parts in transformer manufacturing?

In many oil-immersed transformers, paper pressboard components are used to build the internal insulation structure and maintain electrical stability during long-term operation.

In this video, you can see CNC machining of transformer pressboard parts made according to customer drawings.

Typical applications include:
• Transformer insulation spacers
• Support blocks
• Oil channel insulation structures
• Custom pressboard components

For transformer factories, stable insulation materials and precise machining are both critical.

Do you use pressboard insulation parts in your transformer production or maintenance projects?

We support:
✔ Transformer insulation materials supply
✔ Custom CNC machining
✔ OEM production based on drawings

Feel free to message us if you are looking for transformer insulation material suppliers.

25/02/2026

Power transformers rely on reliable insulation materials to operate safely and efficiently.

We supply insulation materials widely used in oil-immersed transformers, including electrical laminated wood and other structural insulation components used inside transformer assemblies.

These materials help improve:
✔ Mechanical strength of the internal structure
✔ Long-term insulation reliability in transformer oil
✔ Stability during transformer operation

Our insulation materials are supplied to transformer manufacturers and electrical equipment factories in different countries.

If you are sourcing insulation materials for oil-immersed transformers, feel free to connect with us.

24/02/2026

Insulation Paper Solutions for Oil-Immersed Transformers

We specialize in supplying high-quality insulation paper materials used in oil-immersed transformer manufacturing.

Our main products include:
• Diamond Dotted Paper (DDP)
• Electrical Kraft Insulation Paper
• Transformer Coil Insulation Materials

These materials are widely applied in transformer coil winding and layer insulation, helping improve electrical strength, bonding performance, and long-term operational stability.

✔ Stable quality from source manufacturer
✔ Custom slitting and sizes available
✔ Suitable for transformer factories and repair projects worldwide

If you are looking for reliable insulation paper for oil-filled transformers, we are ready to support your production.

Address

25FL, Ztaero Building, 14#, National Uni-Science Park, No. 279 West 3rd RingRoad
Zhengzhou

Website

https://ztelecpro.com/Insulation-Paper/

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