  We consider the low-energy effective action of the 5D
Einstein-Maxwell-Kalb-Ramond theory. After compactifying this truncated model
on a two-torus and switching off the U(1) vector fields of this theory, we
recall a formulation of the resulting three-dimensional action as a double
Ernst system coupled to gravity. Further, by applying the so-called normalized
Harrison transformation on a generic solution of this double Ernst system we
recover the U(1) vector field sector of the theory. Afterward, we compute the
field content of the generated charged configuration for the special case when
the starting Ernst potentials correspond to a pair of interacting Kerr black
holes, obtaining in this way an exact field configuration of the 5D
Einstein-Maxwell-Kalb-Ramond theory endowed with effective Coulomb and dipole
terms with momenta. Some physical properties of this object are analyzed as
well as the effect of the normalized Harrison transformation on the double Kerr
seed solution.
