Air Gap: What Is It, What Does It Do, and Why Is It Important? - Webinar Recordings - EASA | The Electro•Mechanical Authority
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Air Gap: What Is It, What Does It Do, and Why Is It Important?

  • October 2019
  • Number of views: 35225
  • Article rating:

Presented by Chuck Yung
EASA Senior Technical Support Specialist

The physical air gap between the rotor or armature and the stator or field frame is complex and plays a critical role in the performance of AC and DC machines. Most repairers do not realize how little they understand about this subject.

This webinar will explain the role air gap plays in AC motor performance, how to recognize the symptoms of an uneven air gap, and share corrective measures. For DC machines, this webinar will cover the distinctly different role of the field air gap as opposed to the air gap of the interpoles.

  • Air gap tolerance of AC machines
  • Air gap tolerance of DC fields and interpoles
  • Allowable runout of rotor / armature
  • Recognizing the signs of air gap anomalies
  • Corrective actions

Target audience
This webinar recording is of benefit to managers, supervisors, winders, mechanics and field service personnel.

AVAILABLE AS PART OF A DISCOUNTED BUNDLE BUY A COPY

ANSI/EASA AR100

More information on this topic can be found in ANSI/EASA AR100
  • Section 2: Mechanical repair
  • Section 4: Testing

EASA Technical Manual

More information on this topic can be found in EASA's Technical Manual
  • Section 2: AC Machines
  • Section 3: DC Machines
  • Section 7: Electrical Testing

Related Reference and Training Materials

Principles of Medium & Large AC Motors (NEMA Standards)
  • Section 4: Safety & Handling Considerations
  • Section 8: Squirrel Cage Rotors
  • Section 10: Bearings & Lubrication
  • Section 12: Test & Inspection Procedures
  • Section 13: Motor Alignment, Vibration & Noise

Principles of Medium & Large AC Motors (IEC Standards)
  • Section 4: Safety & Handling Considerations
  • Section 8: Squirrel Cage Rotors
  • Section 10: Bearings & Lubrication
  • Section 12: Test & Inspection Procedures
  • Section 13: Motor Alignment, Vibration & Noise

Root Cause Failure Analysis
  • Section 2: Bearing Failures
  • Section 3: Stator Failures
  • Section 4: Shaft Failures
  • Section 5: Rotor Failures
  • Section 6: Mechanical Failures
  • Section 7: DC Motor Failures

Fundamentals of DC Motors & Operation Tips
  • Section 2: DC Motor Theory
  • Section 5: Armatures
  • Section 10: On-Site Troubleshooting

Mechanical Repair Fundamentals of Electric Motors
  • Section 8: Rotors
  • Section 9: Motor Assembly
  • Section 11: Motor Dynamics
  • Section 12: Vibration & Motor Geometry
  • Section 13: Shaft/Bearing Currents

Tags: Motor design Air gap
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