DDP Insulation Paper in High-Voltage Equipment

Overview DDP insulation paper is a premium electrical insulation material made from high-quality cellulose fibers im...

Overview

DDP insulation paper is a premium electrical insulation material made from high-quality cellulose fibers impregnated with superior dielectric resins. Known for its excellent dielectric strength, heat resistance, and mechanical durability, DDP insulation paper is widely used in critical high-voltage power equipment.

Applications in High-Voltage Equipment

Transformer Winding Insulation

DDP insulation paper is commonly used for inter-winding insulation and insulation between windings and cores in high-voltage transformers.

Key Advantages:

Exceptional dielectric strength to withstand high-voltage stress

High thermal resistance suitable for F-class (155°C) and H-class (180°C) windings

High-Voltage Switchgear and Circuit Breakers

Used in high-voltage switchgear and vacuum circuit breakers to support electrodes and isolate conductive parts, ensuring reliable long-term operation.

Key Advantages:

Strong mechanical strength to endure switching forces

Superior insulation reduces partial discharge risk

Power Cables and Busbars

DDP paper can be used as insulation liners in high-voltage power cables or layers in busbar systems.

Key Advantages:

Excellent moisture and aging resistance

Enhances overall equipment safety and reliability

Benefits of DDP Insulation Paper

High dielectric strength: Prevents electrical breakdown

Heat resistance: Suitable for high-temperature and high-load environments

Mechanical durability: Easy to process into sheets or rolls for installation

Long-term stability: Resistant to aging in high-voltage and humid conditions

How to Select DDP Insulation Paper

When choosing DDP insulation paper for high-voltage equipment, consider:

Conclusion

Thanks to its superior electrical and mechanical properties, DDP insulation paper is essential in high-voltage transformers, switchgear, and power cables. It ensures safe, stable, and efficient operation of modern electrical power systems.