What's the difference between an excited motor and an ordinary motor?
The motor is a magnetic field that is generated by the ac input motor stator coil, which drives the rotor rotation, so don't confuse the two.
Exciter and excitation generator is important equipment of power plants, it is produced by coaxial prime mover rotational dc, for excitation voltage to establish a magnetic field to the rotor of the generator
The motor that provides the excitation current for the rotor of the generator is the dc generator