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360 Epoxy Fiberglass Filament Winding Tube

360 epoxy fiberglass filament winding tube is made of fiberglass yarn and insulating jelly like epoxy resin. Its insulation class is H class and widely used in the main insulator of H-class dry-type transformer.

Description of 360 Epoxy Fiberglass Filament Winding Tube

360 epoxy fiberglass filament winding tube is tube-like laminated products, which is made of fiberglass yarn impregnated with insulating jelly with different resin ratios like epoxy resin, and then rolled, baked and cured under heat and hot pressing with good dielectric property and mechanical property, and higher thermal resistance property. The insulation class is H class.

Application of 360 Epoxy Fiberglass Filament Winding Tube

It is widely used as the main insulator of H-class dry-type transformer, on-load tap changers, reactors, surge arresters, SF6 instrument transformer and other products.

Advantage of 360 Epoxy Fiberglass Filament Winding Tube

360 epoxy fiberglass filament winding tube, produced by using fiberglass yarn as raw material, insulating jelly with different resin ratios like epoxy resin as additive, can be mass-produced with advanced production equipment and automatic production line. This product has the advantages of reliable quality, smooth appearance, uniform color, neat cutting ends and small thickness tolerance with strict manufacturing technology. Meanwhile, ZTelec Group is equipped with advanced ventilation facilities and dust-removing equipment to keep the products dry and clean. The mechanical and electrical properties of products are superior to the similar one of other companies. Its quality is recognized by domestic and foreign large enterprises such as Lens Technology in China and Schneider Electric and sold overseas such as European and American areas.

Property Parameter of 360 Epoxy Fiberglass Filament Winding Tube

Executive Standard:GB-T 23100-2008 IEC61212-2006

Number Item Unit Value
1 Density g/cm3 1.85-2.0
2 Flexural Strength at Perpendicular Lamination
Under Normal
MPa 400
3 Axial Compressive Strength MPa ≥150
4 Breakdown Voltage at Parallel Lamination
Transformer Oil at 90℃)
Kv ≥40
5 Dielectric Strength at Perpendicular Lamination
Transformer Oil at 90, 1mm
KV/mm ≥11.6
6 Surface Voltage Resistance after Damp kv ≥12
7 Insulation Resistance after Immersion Ω 1.0×103
8 Dielectric Loss Factor50Hz - ≤0.05
9 Water Absorption % ≤1
10 Partial Discharge PC ≤5
11 Thermal Index - 180

Product Specification of 360 Epoxy Fiberglass Filament Winding Tube

Name Unit Value
Minimum Wall Thickness mm 3
Minimum Bore Size mm 30
Maximum Bore Size mm 600
Length mm 1000-3000

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