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Pultruded Strip for Dry Transformer
High strength:
Flexural/compressive strength> 200 MPa, tensile strength < 900 MPa, impact strength ≥90kJ/m², resistant to electrodynamic forces and coil self-weight.
High insulation:
Insulation resistance ≥1.0×10¹²Ω under normal conditions (≥1.0×10¹¹Ω after 24h water immersion), dielectric strength ≥10kV/mm in transformer oil at 90°C, arc resistance ≥180s, comparative tracking index ≥600V.
High temperature resistance:
Thermal class F/H (155–180°C), heat deflection temperature ≥240°C, resistant to aging.
Moisture resistance:
Water absorption < 20 mg, no additional moisture protection required, stable performance in complex environments.
Easy processing:
Smooth surface allows fast cutting and assembly, suitable for automated production.
Safe and reliable:
Meets flame retardant standards, metal-free, does not interfere with electromagnetic performance.
Interlayer ventilation cooling:
The I-shaped structure creates uniform ventilation gaps in dry-type transformers, accelerating heat dissipation, reducing coil temperature rise, and preventing overheating damage.
Insulation structural support:
Used for coil to core and coil-to-enclosure support in dry-type transformers, as well as in reactors and line traps, dispersing electric field stress and reducing partial discharge risk.
High-voltage electrical equipment:
Can be used as an insulation structural component in high-voltage frequency converter power modules, power capacitors, disconnectors, on-load tap changers, and other high-voltage electrical products.
| Item | Information |
| Available Specifications | Full range of specifications |
| Standard I-beam Cross-section Sizes | 6×8 mm, 8×8 mm, 10×10 mm, 16×20 mm |
Customization:
Custom sizes can be manufactured as per customer requirements, suitable for manufacturing dry-type transformers of various power ratings and specifications
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