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2. Three-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Three-phase_electric_power

   A three-phase motor is more compact and less costly than a single-phase motor of the same voltage class and rating, and single-phase AC motors above 10 hp (7.5 kW) are uncommon. Three-phase motors also vibrate less and hence last longer than single-phase motors of the same power used under the same conditions. [32]

3. Siemens ACS-64 - Wikipedia

   en.wikipedia.org/wiki/Siemens_ACS-64

   Traction motors: 3-phase, AC, fully suspended, Siemens built (Norwood, Ohio) Head end power: 1,000 kW (1,340 hp) 3-phase, 60 Hz, 480 VAC, 1,000 kVA: Transmission: Pinion Hollow Shaft Drive w/ Partially Suspended Gearboxes: MU working: Yes: Loco brake: Regenerative braking, NYAB Electro-Pneumatic Cheek Mounted Disk Brakes: Train brakes: Electro ...

4. Rotary phase converter - Wikipedia

   en.wikipedia.org/wiki/Rotary_phase_converter

   With increasing power output, three-phase motors have preferable characteristics to single-phase motors; the latter not being available in sizes over 15 hp (11 kW) and, though available, rarely seen larger than 5 hp (3.7 kW). (Three-phase motors have higher efficiency, reduced complexity, with regards to starting, and three-phase power is ...

5. NEMA size - Wikipedia

   en.wikipedia.org/wiki/NEMA_size

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6. Motor controller - Wikipedia

   en.wikipedia.org/wiki/Motor_controller

   A motor controller is a device or group of devices that can coordinate in a predetermined manner the performance of an electric motor. [1] A motor controller might include a manual or automatic means for starting and stopping the motor, selecting forward or reverse rotation, selecting and regulating the speed, regulating or limiting the torque, and protecting against overloads and electrical ...

7. AOL

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