



Paperboard Insulating End Ring for Transformer
Product Description
The insulating end ring is made from pre-compressed insulating paperboard, offering good compatibility with transformer oil, so long-term immersion does not affect the oil’s performance. The product can be processed into trapezoidal or open styles according to actual requirements, with high dimensional accuracy and stable, reliable insulation performance, effectively meeting the insulation and support needs at the winding ends.
1.Product Features
Made of pre-compressed insulating paperboard for stable material performance
Good compatibility with transformer oil, no impact on oil quality after long-term use
Available in trapezoidal, open, and other structural styles
Customizable outer diameter, inner diameter, and thickness
Strict dimensional tolerance control for precise assembly
2.Specifications
Outer Diameter: D≤3150mm
Width: W≥15mm
Thickness: T≤120mm
Chamfering Angle: r≤2
3.Applications
The insulating end ring is mainly used at the winding ends of oil-immersed transformers, providing insulation isolation and structural support, making it a key component of the transformer winding insulation system.