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Question:

I know DC motors can be DC generators, but can AC motors be AC generators?

I know DC motors can be DC generators, but can AC motors be AC generators?

Answer:

The DC motor has a fastened magnetic container created by employing the two an enduring magnet or by employing DC present day flowing by a container winding. The armature has a winding that rotates interior the fastened container. A DC present day utilized to the armature winding will consequence interior the armature rotating to the factor the place the magnetic container of the armature is aligned with the fastened container. At this factor the armature might end, by no skill to show anymore. So there's a gadget reported as a commutator on the armature shaft it is used to maintain on with present day to the armature winding AND to opposite the direction of present day circulate interior the direction of the armature on the factor of rotation the place the armature might in any different case end. hence whilst the armature strategies the factor of container alignment whilst it would end, the present direction is unexpectedly reversed by employing the commutator, and the fields are bucking one yet another and the motor keeps turning, and this technique repeats itself continually. The DC motor will grow to be a DC generator notwithstanding if it quite is pushed by employing an exterior source of mechanical capability. If the commutator function have been faraway from the DC motor and altered with slip rings that habit present day to the rotating winding without reversing the direction of present day circulate, and if the motor have been pushed be an exterior capability source, you presently have an AC generator. The voltage and present day generated hence will opposite direction each 0.5 turn of the armature because of the fact the windings are crossing a magnetic container of opposite polarity.
Absolutely. As a matter of fact, most power plants use synchronous generators, but induction motors can also become generators when they are driven past their synchronous speed and start developing torque and are used in windmills and cogeneration projects. . .

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