stator
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GC: n

CT: An AC motor has two basic electrical parts: a “stator” and a “rotor” as shown in Figure 8. The stator is in the stationary electrical component. It consists of a group of individual electro-magnets arranged in such a way that they form a hollow cylinder, with one pole of each magnet facing toward the center of the group. The term, “stator” is derived from the word stationary. The stator then is the stationary part of the AC motor. The rotor is the rotating electrical component. It also consists of a group of electro-magnets arranged around a cylinder, with the poles facing toward the stator poles. The rotor is located inside the stator and is mounted on the AC motor’s shaft. The term “rotor” is derived from the word rotating. The rotor then is the rotating part of the AC motor. The objective of these motor components is to make the rotor rotate which in turn will rotate the motor shaft. This rotation will occur because of the previously discussed magnetic phenomenon that unlike magnetic poles attract each other and like poles repel. If you progressively change the polarity of the stator poles in such a way that their combined magnetic field rotates, then the rotor will follow and rotate with the magnetic field of the stator.

S: http://www.galco.com/comp/prod/moto-ac.htm (last access: 31 January 2015)

N: 1. “stationary part of a generator” (opposed to rotor), 1895, from Latin stator, agent noun from stare “to stand”. In classical Latin it meant “an orderly, attendant upon a proconsul.”
2. A generator produces electricity. It is constructed of two main parts, the Stator and the Rotor. These parts interact to generate electricity. Two important laws explaining how they interact are Faraday’s Law and Lenz’s Law. The speed of the generator must be kept constant to keep the electrical frequency at 50 Hertz.
3. The Stator is stationary and surrounds the Rotor.
The Stator:

  • has large coils of wire.
  • has coils that create voltage and current when a magnetic field “cuts” the wires.
  • has 2 or 4 magnetic poles. (The number depends on the speed the rotor spins).

S: 1. OED – http://www.etymonline.com/index.php?allowed_in_frame=0&search=stator&searchmode=none (last access: 31 January 2015). 2 & 3. http://www.nzgeothermal.org.nz/education/electrical-generators.html (last access: 31 January 2015).

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CR: rotor, wind turbine (1).