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ANSI/EASA AR100-2020 cover

ANSI/EASA Standard AR100-2020
ANSI/EASA AR100-2020: Recommended Practice for the Repair of Rotating Electrical Apparatus is a must-have guide to the repair of rotating electrical machines. It establishes recommended practices in each step of the rotating electrical apparatus rewinding and rebuilding processes.

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Questions?

For information about ANSI/EASA AR100 or questions about the work on this standard, contact:

Mike Howell, PE
EASA Technical Support Specialist
+1 314 993 2220
mhowell@easa.com

ANSI Accredited Standards Developer Information

Advanced DC Testing Tips

  • June 2012
  • Number of views: 4594
  • Article rating: No rating

Chuck Yung
EASA Senior Technical Support Specialist

This paper covers:

  • Interpreting AC and DC drop test results (Is that coil really shorted?)
  • Differentiating between interpole and armature problems
  • Locating an armature short/ground
  • Locating shorted/open equalizers in an armature
  • Working neutral: Did that motor arc when it left the factory? Let’s cure that problem!

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ANSI/EASA AR100

More information on this topic can be found in ANSI/EASA AR100
  • Section 4: Testing

EASA Technical Manual

More information on this topic can be found in EASA's Technical Manual
  • Section 3: DC Machines

Related Reference and Training Materials

Fundamentals of DC Motors & Operation Tips
  • Section 4: Testing
  • Section 5: Armatures
  • Section 7: Frames
  • Section 9: Motor Assembly & Final Testing

Tags: Motor testing
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EASA Rewind Study cover

The Effect of Repair/Rewinding on Premium Efficiency/IE3 Motors
Tests prove Premium Efficiency/IE3 Motors can be rewound without degrading efficiency.

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EASA Good Practice Guide

Good Practice Guide to Maintain Motor Efficiency
Based on the 2019 and 2003 Rewind Studies of premium efficiency, energy efficient, IE2 (formerly EF1) and IE3 motors

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