In this paper the bond-graph modeling of an electrical transmission line and the analysis of this model using the 20SIM simulation software is presented. This analysis was made with the purpose of obtaining results as close to reality as possible tacking into account the importance of the influences of the electrical transmission lines at the interconnection of complex systems. The electrical transmission line is chosen to be a 1 meter long cable, with three conductors. The bond-graph modeling and simulation represent a unitary tool and environment that allow modeling, analyzing and designing any complex system that can contain any components as electrical, magnetic, hydraulic, pneumatic or any other components independent of their physical nature.

Keywords: Bond-graphs, Electrical transmission line, Electric circuits, Bond-graph modeling