Advantages of High-temperature Resistant Insulation Paper for Transformers

At the heart of many power and distribution transformers lies a seemingly simple yet highly engineered material: High-Temperature Resistant Insulation Paper which is thermally upgraded insulation paper. This specialized paper is not just a barrier; it's a performance-enhancing shield crucial for modern electrical systems.

This blog post delves into the unique characteristics, advanced manufacturing process, and advantages of this high temperature resistant insulation paper.

The Raw Material: 100% Pure Electrical Grade Pulp

The journey of high-performance insulation paper begins with its raw material. This is manufactured from 100% electric grade unbleached pulp. It ensures the highest levels of electrical purity from the start, free from contaminants that could compromise dielectric strength. The resulting paper possesses a fine, uniform texture, which is the bedrock of its exceptional electrical and mechanical properties.

Precision Engineering: The Manufacturing Process

The transformation from raw pulp to a high-density insulation paper is a marvel of precision engineering. The process involves several critical stages:

Pulping: The electric grade pulp is prepared, and a key upgrading step occurs here. Nitrogen is added to the paper pulp. This is a crucial "thermally upgrading" process where nitrogen replaces oxygen. Oxygen is a primary agent that causes oxidation and accelerates the aging of paper at high temperatures. By incorporating nitrogen, the paper's thermal endurance is significantly enhanced.

Papermaking & Pressing: The pulp is formed into a paper sheet. It then undergoes intense pressing, which begins the process of removing water and compacting the paper's structure.

‌Drying: The paper is carefully dried to remove residual moisture, further solidifying its structure.

Main Features of High temperature resistant insulation paper(Thermally Upgraded):

Type: Insulation Paper
Heat-resistance: E Class 120℃
Material: Electric grade unbleached pulp

Thickness: 0.05,0.075,0.085mm etc or customized

Color: Green

Advantages of Heat-resistant Thermally Upgraded Insulation Paper:

The meticulous manufacturing process results in a product with outstanding properties:

1. High Dielectric Strength: Made from electrically pure pulp and water, this paper offers excellent dielectric strength, effectively resisting electrical breakdown under high voltage stress. The high density achieved through compression further contributes to this superior insulating capability.

2.Superior Thermal Endurance: This insulation paper is classified with a 120°C thermal class rating. The thermally upgraded construction, achieved through nitrogen addition, ensures long-term stability and performance at continuous high operating temperatures. It resists embrittlement and degradation far better than non-upgraded papers.

3.Excellent Wrappability: The combination of strength, flexibility, and a mirror-smooth surface gives this paper the best performance for the paper wrapping process around magnet wires. It can be applied tightly and uniformly without tearing, ensuring reliable and void-free insulation.

Conclusion: The Intelligent Choice for Transformer Longevity

High-Temperature Resistant Insulation Paper is a testament to how material science drives reliability in electrical engineering. It is far more than just paper; it is a technologically advanced component designed for durability.

From its pure pulp origin and nitrogen-based thermal upgrading to its high-density, every aspect is optimized to protect the heart of your transformer. By choosing a 120°C class insulation paper, you are not just selecting a material—you are investing in enhanced safety, reduced downtime, and extended transformer lifespan.

Looking for a reliable insulation solution for your electrical equipment? Ensure your specifications call for high-temperature thermally upgraded insulation paper to guarantee peak performance and durability.