Induction Motor Rotor Windings: Squirrel-Cage and Wound Rotor Basics for the Technician - Webinar Recordings - EASA | The Electro•Mechanical Authority
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Webinar recording

Induction Motor Rotor Windings: Squirrel-Cage and Wound Rotor Basics for the Technician

  • September 2025
  • Number of views: 2742
  • Article rating:

WEGMike Howell, PE
EASA Technical Support Specialist

This is an encore presentation of a January 2018 webinar and covers the following topics.

  • Induction motor basics for operation
  • Squirrel-cage
    • Conductor material
    • Deep-bar effect
    • Multiple-cage windings
    • Phase resistance
    • IEC/NEMA design letters
    • Speed-torque characteristics
  • Wound-rotor
    • Winding construction
    • Wave-wound connections
    • Distribution factor and chord factor
    • Rotor phase voltage
    • Speed-torque characteristics

This presentation will benefit both service center technicians and supervisors.

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ANSI/EASA AR100

More information on this topic can be found in ANSI/EASA AR100

EASA Technical Manual

More information on this topic can be found in EASA's Technical Manual
  • Section 2: AC Machines

Related Reference and Training Materials

Principles of Medium & Large AC Motors (NEMA Standards)
Principles of Medium & Large AC Motors (IEC Standards)
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