Abstract: A power transmission apparatus manipulates the transmission of power of the mechanical and/or electrical form. The power transmission apparatus is constructed integrating together a power-transmitting device and a transmission interaction redistributing mechanism. The interaction redistributing mechanism redistributes, or remaps, an optimized section of the operating speed range of the power-transmitting device onto the full operating speed range, including the stall speed, of the power transmission apparatus. Full operating speed range, including low speeds, is optimized. In a mechanical implementation of the apparatus, an epicyclic gear train is utilized as the redistributing mechanism. In an electromagnetic implementation of the apparatus, a rotary commutator is utilized as the redistributing mechanism and the power-transmitting device is an electromagnetic device. The mechanical implementation is capable of handling mechanical-to-mechanical mode of power transmission.