Transformer Grade Insulation
Paper Insulated Copper Strip
Rectangular copper strip wrapped with multiple layers of kraft or thermally upgraded kraft paper insulation for oil-filled transformer windings. Supplied in single, twin, and triple configurations to match winding current capacity.
Why Universal Metals
Proven Insulation for Oil-Filled Transformers
High-Conductivity Copper
High-purity copper strip delivering reliable electrical performance in transformer windings. Full traceability from cathode to finished strip, with spectrometer-verified composition on every production run.
Kraft & Thermally Upgraded Kraft Paper
Standard kraft paper for general transformer applications and thermally upgraded kraft (TUK) paper for higher temperature ratings. Both options provide excellent dielectric performance when oil-impregnated, with superior conformability to conductor contours.
Tested and Certified
Every batch undergoes dimensional verification, insulation thickness measurement, conductivity testing, and dielectric strength validation, with test certificates supplied alongside every drum.
Get in Touch
Let’s Discuss Your Requirements
Our technical team is ready to help with your paper covered copper strip requirements, whether for power transformers, distribution transformers, or specialty winding applications.