An apparatus is provided for transferring power to an electrical load, including: a charging device including an assembly of at least three transmitting armatures, and a primary electrical circuit connecting each transmitting armature to a tension generator; a user device including the electrical load, at least a pair of receiving armatures, and a secondary electrical circuit connecting the receiving armatures to the electrical load, the pair of receiving armatures being faceable to at least a pair of transmitting armatures of the charging device realizing therewith at least two distinct electrical capacitors; an electronic system for monitoring and selecting, connected to the primary circuit of the charging device, which is configured to identify a first sub-assembly of transmitting armatures which face an armature of the receiving armatures of the user device, and to identify a second sub-assembly of transmitting armatures which face the other receiving armature of the user device.