Dielectric Strength
The dielectric strength of insulation paper is its ability to withstand electric stress without breaking down. This is one of the most critical properties, as a failure can result in transformer malfunction.
Mechanical Toughness
Transformer paper must be tough enough to withstand physical stresses, especially during installation and operation.
Thermal Stability
Insulating paper must perform well under high temperatures, as transformers often operate at elevated heat levels.