This article presents a bibliographic review accompanied by two electric arc models that can represent both dynamic characteristics for the first and static for the second. The proposed models were developed from the combination and modifications of the classical Cassie and Mayr equations for the dynamic case and the representation of the V-I characteristic for the static case. The equations have been expressed in a form suitable for EMTP-ATP incorporation using the subroutine models that use the nodal analysis method for solving equations. Simulated and experimental results show a pleasant approximation.