The analysis of the electrical and mechanical effects for underground cable and fittings by electromagnetic force

This paper handles with effect of electromagnetic force on the cables by fault current accompanied by accident of underground transmission cable. Even though underground transmission cable is an essential transmission method to supply stable power for downtown and population center, interaction of electromagnetic force from fault current is very large comparing to overhead transmission line due to restricted installation space such as tunnel, etc. and close consideration is required for it. This paper describes analysis on electromagnetic force between cables upon burying formation and fault situation by utilizing EMTP and FEM(finite element method), which was utilized as basic materials for improvement and development of cleat, hanger, etc. to reduce and release effect of electromagnetic force in the future.