laminasjoner
Laminasjoner refer to the use of thin sheets of ferromagnetic material, typically silicon steel, arranged and insulated to form magnetic cores. The primary purpose is to limit eddy current losses that arise when magnetic fields vary in time, enabling higher efficiency in transformers, motors, and generators.
The sheets are usually made from electrical steel, available in grain-oriented (CRGO) and non-oriented (CRNO) varieties.
Manufacturing and assembly involve stamping or calendaring sheets, applying insonorating coatings, and then stacking the sheets
Applications and impact: lamination cores are fundamental in power transformers, electric motors (stator and rotor laminations),