Tutorials | Iris Rotating Machine Conference

Monday May 7th

Partial Discharge Theory & Interpretation

Instructor: Howard Sedding

• Partial discharge phenomena and their causes in stator windings
• PD theory, PD detection, sensor installation, and calibration procedures
• Collection of off-line and on-line PD data
• PD characteristics of stator-failure mechanisms
• Case studies from continuous monitoring equipment and portable instruments

Stator Core Testing

Instructor: Mladen Sasic

• Stator core design basics
• Basic Principles of ELCID testing (safety, calculations)
• ELCID Test Procedures (turbo, hydro and motors, step iron, split areas, rotor bars test

Case Histories on Vibration Monitoring to Diagnose Mechanical Faults in Induction Motors

Instructor: Bill Thomson, Scotland, UK

Topics Covered

• Introduction to the types of roller element and sleeve bearings and types of faults.
• Industrial case histories on the measurement and analysis of vibration to diagnose:
• Faults in roller element and sleeve bearings in small, medium and high power induction motors.
• Misalignment and Soft foot.
• The seminar will be valuable to electrical and mechanical engineers responsible for the operation, maintenance and condition monitoring of induction motor drive

Thursday May 10^th

Advance Partial Discharge Interpretation

Instructor: Greg Stone

• PD interpretation one step further with pulse density linear plots to identify cross-coupled PD activity
• phase to phase activity, and general pulse phase pattern recognition
• behavior of PD activity over time
• defining reliable alerts based on PD activity
• Advanced Summary Numbers (ASN) and their diagnostic value
• PD interpretation on data where two or more different types of failure mechanisms are present

Stator Endwinding Vibration: Causes, Off-line Tests and On-line Monitoring

Instructor: John Letal

Topics covered:

• Introduction to vibration
• Turbo Generator design considerations
• Forces in stator winding
• Failure mechanisms
• Offline testing
• Online monitoring