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Rebarring fabricated copper squirrel cage rotors: Steps, considerations and procedures to follow in the repair process

  • March 2008
  • Number of views: 9961
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By Tom Bishop, P.E.
EASA Technical Support Specialist

Being accustomed to rewinding AC stators, we may not realize that there is an equivalent repair service that can be performed on some rotors…namely, rebarring. Our focus in this article will be the rebarring of fabricated copper squirrel cage rotors. Redesign of rotors is outside the scope of this article.

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ANSI/EASA AR100

More information on this topic can be found in ANSI/EASA AR100
  • Section 2: Mechanical repair

Related Reference and Training Materials

Principles of Medium & Large AC Motors (NEMA Standards)
  • Section 8: Squirrel Cage Rotors

Principles of Medium & Large AC Motors (IEC Standards)
  • Section 8: Squirrel Cage Rotors

Mechanical Repair Fundamentals of Electric Motors
  • Section 8: Rotors

Tags: Rotor bars Rotors - fabricated
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