In the first place, it's cheaper to have these components installed at the factory level. Secondly, factory installed components maintain a homogenous integrity that aftermarket purchases lack. All RotaDynes come complete with a starter package . The efficiency of three phase power and the range of electric motor choices it accommodates are a desirable combination for many job applications. These motors are more readily available than single-phase, and are lighter, smaller, and come in a variety of enclosures.
Phase converters provide an inexpensive access to three-phase power and all it's advantages.
RotaDyne is a rotary phase converter. This is a moving phase converter consisting of a rotating transformer and control panel. The RotaDyne can virtually operate an unlimited amount of motors working individually or simultaneously. Three-phase motors operate at their normal efficiencies regardless of frequent starts, reversing and varying or variable speeds. Multi-speed motors can be operated normally.