[en] The dipolar electric field induced by an isolated vortex aligned along a principal axis and moving at constant velocity in an anisotropic type-II superconductor is investigated. It is shown that the standard dipolar-field case can be extended by the inclusion of a mass-anisotropy parameter β. It is shown that the streamlines of the electric field can be easily calculated analytically. In addition, an inertial mass tensor per unit length of vortex is found