Abstract: A system comprising a synchronous three-phase electric motor and a controller is provided. The synchronous three-phase electric motor comprises a rotor, a stator, a plurality of coils, and a plurality of switching devices. The plurality of coils formed from conductive windings each wound around one or more of a plurality of stator teeth of the stator. The plurality of coils comprises a plurality of permanent coils and a plurality of bypass coils. The plurality of switching devices configured to selectively switch between a tapped position and a primary position. The controller is configured to provide a first switching command to the plurality of switching devices to switch from the primary position to the tapped position based on a transition signal. The transition signal is based on comparing an electrical characteristic associated with one or more input currents to the plurality of switching devices with a threshold value.

Abstract: A privacy screen for tanning. The screen has a top screen panel and four vertical lateral wall screen panels, combining to form a canopy lowered over and covering a portion of a sunbather's torso. The screen panels are made from a material impervious to light in the visible spectrum and permeable to UV-A light. The top and two lateral screen panels are stored on reels enclosed in respective housings. The remaining two lateral screen panels are fastened, as by hook and loop material, to vertical legs holding the top screen panel above and spaced apart from the sunbather. Legs are adjustable as to height of the privacy screen. The two lateral screen panel housings are integral with two of four legs, which hold the canopy in its assembled configuration. The two remaining legs have external surfaces bearing hook and loop material for assembly of the canopy.