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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

Training Film 21: Testing DC Machines

  • June 1987
  • Number of views: 13937
  • Article rating: No rating

Training Film 11: Winding Single-Phase Concentric Coils

  • June 1984
  • Number of views: 8579
  • Article rating: 4.2

Shows method of winding concentric coils, which includes determining the coil width for the various size coils within each group, how to set the concentric winding head and select the proper grooves for winding the coils. Also shows how to wind coils using the Holden Head.

Training Film 19: Layer-Winding DC Field Coils

  • June 1985
  • Number of views: 8399
  • Article rating: No rating

Covers all necessary steps for layer-winding DC field coils, how to layer-wind a shunt field coil, how to reinsulate an interpole field coil, and how to install large field coils in the frame.

Training Film 18: Random-Winding DC Field Coils

  • June 1984
  • Number of views: 8170
  • Article rating: No rating

Illustrates procedures for manufacturing random-wound interpole and main field coils for DC machines. Covers everything from removing old coils and taking data to installing and connecting new coils, including how to construct winding forms and jigs, how to shape coils to conform with the curvature of the field frame and how to insulate field coils. Both “wet” and “dry” winding techniques are illustrated.

Training Film 10: Disassembly of a Single-Phase Capacitor Motor

  • June 1984
  • Number of views: 8054
  • Article rating: 4.8

Step-by-step disassembly of a capacitor motor, both ball bearing and sleeve bearing. Includes bearing removal (both types), plus operation and replacement of various types of starting switches and governors. Stripping not included.

Training Film 14: Taking Data From a Hand-Wound DC Armature

  • June 1984
  • Number of views: 7940
  • Article rating: No rating

Describes the correct procedure for taking data from hand-wound DC armatures. Shows how to record the data on typical DC data sheets, and explains the terminology used describing DC data. Points out differences between lap and wave windings.

Training Film 12: Winding a Single-Phase Stator

  • June 1984
  • Number of views: 7834
  • Article rating: 3.3

Shows proper procedures for inserting concentric coils into a single-phase stator. Shows tools and insulations and points out relationship between running and starting winding coils.

Training Film 20: Testing Three-Phase, AC Motors Rated 600 Volts or Less

  • June 1987
  • Number of views: 7760
  • Article rating: No rating

Outlines the basic steps and procedures commonly used for testing three-phase, AC motors rated 600 volts or less, including preliminary insulation resistance, continuity and no-load tests, as well as the single-phase test for rotors.

Training Film 9: Taking Data From a Single-Phase Motor

  • June 1984
  • Number of views: 7422
  • Article rating: 5.0

Shows step-by-step procedure for properly determining and recording the type of connection, number of parallel circuits, turns per coil, wire size, span and groups, and how to distinguish between running and starting windings.

Training Film 13: Assembly of a Single-Phase Capacitor Motor

  • June 1984
  • Number of views: 6944
  • Article rating: No rating

Step-by-step assembly of a capacitor motor, including installation of both ball and sleeve bearings. Shows tools needed and how to align parts marked during disassembly.

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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