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Webinar Recordings

Webinar recording

Core Repair Tips To Reduce Core Loss

  • August 2024
  • Number of views: 1487
  • Article rating:
Recording duration: 56 minutes

Jasper Electric Motors, Inc.Chuck Yung
EASA Senior Technical Support Specialist

When a core loss test reveals localized hot spots, or visual inspection identifies physical damage, the ability to repair the damage in a cost-effective manner means the difference between repair or replacement.

Topics covered in this recording include:   

  • What core loss flux level is correct?
  • Clearing small localized hot spots
  • What is the best way to clear surface shorting?
  • Grinding versus spreading the laminations
  • “Watt knocking” or physically manipulating the core
  • Debunking the rusting myth — Coreplate, class F red insulator, waterglass
  • Restack: complete or partial — Does lamination grade really matter? 

This presentation is intended for owner-managers, shop supervisors, machinists, service center technicians, and safety directors.

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