The law of Conservation of Energy states:
Energy can be neither created nor destroyed, but can change form, for instance chemical energy can be converted to kinetic energy in the explosion of a stick of dynamite.
You put X amount of energy in, and you have to get X amount out in whatever form.
In your example, you put in X amount of electrical energy. That gets converted into a combination of kinetic energy (movement of the motor), heat energy (the friction of the rotor bearings), and noise. So the kinetic energy is obviously going to be less than the electrical energy you put in.
You then pass that kinetic energy into 4 generators. So it gets then converted into more heat energy, noise, and electrical energy. Again, that's a split.
In a completely perfect system, where there is no friction, and no sound, then you possibly get 100% of the electrical energy converted to kinetic, then 100% of the kinetic converted back to electrical (in 4 quarters, one for each generator), but that is currently not actually possible to achieve in the real world.
So you will never get anywhere near as much electrical energy out of the system as you put in.
Let's illustrate it more by adding some numbers.
Say each time you convert energy you get 5% lost as heat and 5% lost as noise.
You put in 100W. 10W of that goes, 90W gets passed to the generators.
10% of that is then lost by the generators, so 81W is what you'd get out.
In all you'd have generated 81W of electricity, 9.5W of heat, and 9.5W of noise.
The whole lot adds up to the 100W you put in.