Electric Motors: "AC Motors and Generators" 1961 US Army Training Film

more at http://scitech.quickfound.net/

"DESIGN, OPERATION, AND USE OF SINGLE AND MULTIPHASE AC GENERATORS AND MOTORS - OPERATION OF GENERATOR WITH STATIONARY ARMATURE - 0PERATION OF SYNCHRONOUS MOTOR."

US Army Training Film TF9-3107

Electronics playlist: https://www.youtube.com/playlist?list=PLAA9B0175C3E15B47

Reupload of a previously uploaded film, in one piece instead of multiple parts.

NEW VERSION with more improved video & sound: https://www.youtube.com/watch?v=5zHMrS1zwqw

Public domain film from the National Archives, slightly cropped to remove uneven edges, with the aspect ratio corrected, and mild video noise reduction applied.

The soundtrack was also processed with volume normalization, noise reduction, clipping reduction, and equalization (the resulting sound, though not perfect, is far less noisy than the original).

http://en.wikipedia.org/wiki/AC_motor

An AC motor is an electric motor driven by an alternating current.

It commonly consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft that is given a torque by the rotating field.

There are two main types of AC motors, depending on the type of rotor used. The first type is the induction motor, which runs slightly slower than the supply freependent on voltage and winding connection.

Squirrel-cage rotors

Most common AC motors use the squirrel cage rotor, which will be fo