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2. Wound rotor motor - Wikipedia

   en.wikipedia.org/wiki/Wound_rotor_motor

   Compared to a squirrel-cage rotor, the rotor of the slip ring motor has more winding turns; the induced voltage is then higher, and the current lower, than for a squirrel-cage rotor. During the start-up a typical rotor has 3 poles connected to the slip ring. Each pole is wired in series with a variable power resistor.

3. File:Rotor for dual rotor motor.pdf - Wikipedia

   en.wikipedia.org/wiki/File:Rotor_for_dual_rotor...

   This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

4. Slip ring - Wikipedia

   en.wikipedia.org/wiki/Slip_ring

   This can be used in starting a slip-ring induction motor, for example. A slip ring is an electromechanical device that allows the transmission of power and electrical signals from a stationary to a rotating structure. A slip ring can be used in any electromechanical system that requires rotation while transmitting power or signals. It can ...

5. File:Pressure sensitive paint measurement on a rotor (IA ...

   en.wikipedia.org/wiki/File:Pressure_sensitive...

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6. Doubly fed electric machine - Wikipedia

   en.wikipedia.org/wiki/Doubly_fed_electric_machine

   It is based on an induction generator with a multiphase wound rotor and a multiphase slip ring assembly with brushes for access to the rotor windings. It is possible to avoid the multiphase slip ring assembly, but there are problems with efficiency, cost and size. A better alternative is a brushless wound-rotor doubly fed electric machine. [12]

7. Rotary converter - Wikipedia

   en.wikipedia.org/wiki/Rotary_converter

   The rotary converter can be thought of as a motor–generator, where the two machines share a single rotating armature and set of field coils. The basic construction of the rotary converter consists of a DC generator (dynamo) with a set of slip rings tapped into its rotor windings at evenly spaced intervals. When a dynamo is spun the electric ...