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2. Wound rotor motor - Wikipedia

   en.wikipedia.org/wiki/Wound_rotor_motor

   A wound-rotor motor can be used in several forms of adjustable-speed drive. Common applications include hoists and conveyor systems. Common applications include hoists and conveyor systems. Certain types of variable-speed drives recover slip-frequency power from the rotor circuit and feed it back to the supply, allowing wide speed range with ...

3. Single-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Single-phase_electric_power

   Single-phase distribution is used when loads are mostly lighting and heating, with few large electric motors. A single-phase supply connected to an alternating current electric motor does not produce a rotating magnetic field; single-phase motors need additional circuits for starting (capacitor start motor), and such motors are uncommon above ...

4. Hoist (mining) - Wikipedia

   en.wikipedia.org/wiki/Hoist_(mining)

   A drum hoist (steel wire rope visible) and motor. In underground mining a hoist or winder [1] is used to raise and lower conveyances within the mine shaft.Modern hoists are normally powered using electric motors, historically with direct current drives utilizing Ward Leonard control machines and later solid-state converters (), although modern large hoists use alternating current drives that ...

5. Induction motor - Wikipedia

   en.wikipedia.org/wiki/Induction_motor

   Induction motors are most commonly run on single-phase or three-phase power, but two-phase motors exist; in theory, induction motors can have any number of phases. Many single-phase motors having two windings can be viewed as two-phase motors, since a capacitor is used to generate a second power phase 90° from the single-phase supply and feeds ...

6. Hoist (device) - Wikipedia

   en.wikipedia.org/wiki/Hoist_(device)

   Hoist atop an elevator. A hoist is a device used for lifting or lowering a load by means of a drum or lift-wheel around which rope or chain wraps. It may be manually operated, electrically or pneumatically driven and may use chain, fiber or wire rope as its lifting medium.

7. Repulsion motor - Wikipedia

   en.wikipedia.org/wiki/Repulsion_motor

   700 horsepower Brown-Boveri-Déri repulsion motor with 10 poles to be used with 12 kV, 16 2/3 Hz single phase current. Two of these motors were used in the French electric locomotive Midi E3301. A repulsion motor is a type of electric motor which runs on alternating current (AC). It was formerly used as a traction motor for electric trains (e.g ...