Products Description
Name:Electrical Insulation Paper for Transformer
Dielectric Strength:≥ 6 – 12 kV/mm(depending on thickness)
Volume Resistivity:≥ 1 × 10¹² Ω·cm
Surface Resistivity:≥ 1 × 10¹¹ Ω
Permittivity (εr):≤ 3.5 @ 50Hz
Dissipation Factor (tan δ):≤ 0.005 (dry condition)
Thermal Class:Class A (105°C)
Short-term Heat Resistance:Up to 120°C
Thermal Aging Stability:Excellent after oil impregnation
Compatibility with Insulating Oil:Mineral Oil / Silicone Oil / Ester Oil
Tensile Strength (MD):≥ 70 – 100 N/15mm
Elongation at Break:≥ 2.5 – 4%
Tear Resistance:High, suitable for high-speed wrapping
Flexibility:Excellent, no cracking during bending
Oil Absorption Rate:≥ 8 – 12%
Oil Impregnation Uniformity:Fast and even penetration
Bubble Formation:No air trapping after impregnation
Impregnation Time:Short, suitable for continuous cable production lines
Roll Length:500 / 1000 / 2000 m or customized
Core Inner Diameter:76 mm / 152 mm
Roll Type:Jumbo Roll / Slitted Roll
Standards:IEC 60554 ,IEC 60641 ,ASTM D202
Factory Certification:ISO 9001,ISO 14001
Technical Support & Inquiry
For Electrical Insulation Paper for Transformer selection, please share:
Transformer voltage level
Insulation structure and layer design
Oil impregnation process (if applicable)
Our technical team will support you with suitable insulation paper selection and coordinated electrical insulation solutions.
We are a professional manufacturer of insulation materials, support ODM/OEM, please contact us to get free samples
Product Display
applications
1.Electrical insulating paper is used as a base material for flexible materials, such as PMP, DDP, etc.
2.As a base material for oil duct strip
3.Directly applied to transformer windings
FAQ
Can you make our design for the package?
Yes, please send us the design you need ,we will value the price and make the exact same package basing on your design.
What's the universal lead-time for order delivery?
20-30days or basing on your qty.
What can you get from us?
Excellent products (unique design, advance printing machine,strict quality control ) Factory direct sale (favorable and competitive price) Great service(OEM,ODM, after-sales services, fast delivery) Professional business consultation.
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