>>14790593
I'll give you a better hint. The design of the system is to capture energy from the flow of magnetic flux through the Earth itself. This is accomplished almost purely via "good timing." The main purpose of the magnetic bearing is to keep the stator and rotor separate from one another, and a perfect vacuum is not necessary at all.
The active electrical portion of the system is just designed to keep it imbalanced so that the rotor continues wanting to rotate under the power of "gravity" (gravity is just the force exerted by the flux falling into the Earth before being ejected at the poles). This is done by varying the radial distance of counterweights from the axle of the rotor; ones that are meant to be ascendant are pulled inward, ones that are meant to capture gravitic energy and fall are moved further outward. This does cost energy, but less than what's being collected. It's not entirely dissimilar from the rhythmic motion of swinging on a playground swing, but you have to adapt your understanding since this is a rotational system with a few additional complexities.
It's real. Wish I had the facilities to build one, but I would probably just get shot in the head by the minions of an oil baron. Free energy depends on building a bank of huge ones of these, the input energy is entirely gravitational energy. The rotor is basically "constantly falling to Earth"