This documentation is archived and is not being maintained. A desktop has a logical display surface and contains user interface objects such as windows, menus, and hooks; it can be used to create and manage windows. Each desktop object is a securable object. When a desktop is created, it is associated with the current window station of the calling process and assigned to the calling thread.
A delta-wye transformer is a type of three-phase electric power transformer design that employs delta-connected windings on its primary and wye/star connected windings on its secondary. A neutral wire can be provided on wye output side. It can be a single three-phase transformer, or built from three independent single-phase units.
While connected in wye, the motor will draw 1/3 the current that it will in delta, which is great for starting, but it will also produce 1/3 the torque, which can be good or bad, depending on the load. This is the reason you see wye-delta starters and wye-delta motors. You can limit the inrush current to the motor and not hammer a load with a big mechanical shock while starting. If you take a small (1hp) motor and start it across the line in wye, it will start smoothly but if you reconnect it in delta and start it, the motor will jump because of the torque.