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2. Internal fan-cooled electric motor - Wikipedia

   en.wikipedia.org/wiki/Internal_fan-cooled...

   An internal fan-cooled electric motor (colloquially, fan-cooled motor) is a self cooling electric motor.Fan cooled motors feature an axial fan attached to the rotor of the motor (usually on the opposite end as the output shaft) that spins with the motor, providing increased airflow to the motor's internal and external parts which aids in cooling.

3. Electrical ballast - Wikipedia

   en.wikipedia.org/wiki/Electrical_ballast

   The ballast is a fixed resistor with usually two center taps, and the fan speed selector switch is used to bypass portions of the ballast: all of them for full speed, and none for the low speed setting. A very common failure occurs when the fan is being constantly run at the next-to-full speed setting (usually 3 out of 4).

4. Combimac - Wikipedia

   en.wikipedia.org/wiki/Combimac

   The company started in 1919 as a repair shop for direct current machines and transformed during the history into a designer and manufacturer of special electric motors. [8] [9] These electric motors are designed to drive and rotate all kinds of equipment, including pumps, compressors, winches, thrusters and radar systems, such as the SMART-L ...

5. Electric motor - Wikipedia

   en.wikipedia.org/wiki/Electric_motor

   An electric generator is mechanically identical to an electric motor, but operates in reverse, converting mechanical energy into electrical energy. Electric motors can be powered by direct current (DC) sources, such as from batteries or rectifiers, or by alternating current (AC) sources, such as a power grid, inverters or electrical generators.

6. Fan (machine) - Wikipedia

   en.wikipedia.org/wiki/Fan_(machine)

   It was commercially marketed by the American firm Crocker & Curtis electric motor company. In 1885 a desktop direct drive electric fan was commercially available by Stout, Meadowcraft & Co. in New York. [10] In 1882, Philip Diehl developed the world's first electric ceiling mounted fan. During this intense period of innovation, fans powered by ...

7. Three-phase electric power - Wikipedia

   en.wikipedia.org/wiki/Three-phase_electric_power

   Three-phase transformer with four-wire output for 208Y/120 volt service: one wire for neutral, others for A, B and C phases. Three-phase electric power (abbreviated 3ϕ [1]) is a common type of alternating current (AC) used in electricity generation, transmission, and distribution. [2]