The shaded-pole motor is the original type of AC single-phase electric induction motor, dating back to at least as early as 1890. A shaded-pole motor is a motor in which the auxiliary winding is composed of a copper ring or bar surrounding a portion of each pole to produce a weakly rotating magnetic field.
The shaded-pole motor is the original type of AC single-phase electric induction motor, dating back to at least as early as 1890. A shaded-pole motor is a motor in which the auxiliary winding is composed of a copper ring or bar surrounding a portion of each pole to produce a weakly rotating magnetic field.
Source: Wikipedia "Shaded-pole motor" · CC BY-SA 4.0
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