Recently introduced time domain formulations based on the Finite Integratio
n Method (FI) allow to calculate slowly-varying electromagnetic fields with
various implicit time-stepping techniques, In this paper such a Finite-Dif
ference-Implicit-Time-Domain (EDiTD) formulation is extended to consider un
idirectional motion of conductors within the computational domain. A moving
-coordinate scheme suited for high Peclet numbers and a fixed-coordinate fo
rmulation are presented on the basis of the Maxwell-Grid-Equations. The res
ulting large algebraic systems of equations are solved by iterative methods
for each time step. Numerical results of both methods are compared to resu
lts of a test problem configuration.