▎ 摘　　要

NOVELTY - A graphene transformer comprises a core portion and a coil portion wound around an outer circumferential surface of the core portion. The coil portion comprises a base layer made of polyimide (PI), a metal layer (M1) provided on the base layer and containing a graphene coating layer, and a metal layer (M2) provided on the layer (M1) and containing a graphene coating layer having the same thickness as the graphene coating layer coated on the layer (M1). The base layer supports both the metal layers and performs an insulating function in the coil portion. When at least two of the coil portions are coupled based on power of a transformer, the base layer acts as an insulating paper between the layer (M2) arranged below and the layer (M1) arranged above. USE - Graphene transformer. ADVANTAGE - The overall weight of the transformer is reduced while maintaining the insulating performance. The working efficiency of transformer manufacturing is increased. The reliability and stability of transformer are maximized by reducing copper loss. The chemical resistance and corrosion resistance are improved by including graphene in the coil portion. The surface resistance of fluid and heat transfer tube is minimized.