When using a rotating field to generate electricity, from where is the output voltage taken to supply the load?

When using a rotating field to generate electricity, from where is the output voltage taken to supply the load?

• A. The rotor
• B. The stator
• C. The exciter
• D. The rotor windings

Answer: (B)

The output is taken from the stator windings. In a generator with a rotating magnetic field, the rotor carries the DC-excited field windings that create a magnetic field which rotates as the rotor turns. This rotating field links with the stationary stator windings, and by electromagnetic induction it generates the alternating voltage in those stator windings. The stator is the part connected to the load, while the rotor (and its excitation system) stays part of the excitation path, not the load path. So the power delivered to the load comes from the stator.

The output is taken from the stator windings. In a generator with a rotating magnetic field, the rotor carries the DC-excited field windings that create a magnetic field which rotates as the rotor turns. This rotating field links with the stationary stator windings, and by electromagnetic induction it generates the alternating voltage in those stator windings. The stator is the part connected to the load, while the rotor (and its excitation system) stays part of the excitation path, not the load path. So the power delivered to the load comes from the stator.