Electrical Rotating Machine Stator Core Design Characteristics, Failure and Testing

Virtual instructor-led (VILT)

11th Apr, 2022 - 12th Apr, 2022

1 Participant

09:00 – 13:30 (GMT+8)

2 or more

4 Hours/Day

Early Bird Fee

USD 1099

Electrical Rotating Machine Stator Core Design Characteristics, Failure and Testing

Learn how to evaluate stator core conditions by learning its characteristics, failure modes and diagnostic techniques.


These 2 half-days Online Virtual instructor-led Training (VILT) waste no time but focus directly on the overview of the stator core design, different components, construction and characteristics. This will follow by the theoretical explanation and representation of the stator core current flows. Description of the different stator core’s failure modes with explanation and representation of the failure process. Aspects considered will include : Back of core burning, Burning at core bars, Surface anomalies, Damage at core ends, Effects of leakage flux and flux fringing, Catastrophic failure at core clamping and tooth supports and Overheating will also be discuss.

Excitation circuit design, Core Testing Types & Comparison: The second session, attendees will learn how to evaluate and design the excitation circuit. Required for the stator core tests. The instructor will show the types of core testing which is available to determine the condition of the stator core on big rotating machines which are:
  • Power Flux Test (The test is more expensive compared to the ELCID test, but the diagnostic data collection and interpretation is easier) and
  • Electromagnetic Core Imperfection detection (EL CID test) Test (which do not require external power source and no risk of damaging the stator core).

The instructor will further explain the testing principle, excitation requirement, measuring techniques and data interpretation. For each core testing types, advantages and disadvantages will be described during the explanation and comparisons are conducted in the case studies.

Designed For

This comprehensive virtual course will be valuable to professionals who work in the power industry (Generation), Hydropower, oil & gas plants, refineries, chemical & petrochemical plants, mining, manufacturing, fertilizer & process industries that uses all types of large HV rotating machines and power generators.
  • Electrical Engineer / Maintenance Engineers/Technicians
  • Service engineering / Testing engineering / Instrument Engineers
  • Engineering, Testing and Maintenance, Rotating Equipment Engineers
  • Mechanical Engineers, Reliability Engineers, Production Engineers.
  • Condition-based Monitoring Engineers involved in condition-based maintenance analysis.
  • Engineers performing core testing on power generators or large HV motors
  • Hydroelectric power stations synchronous generators with salient poles rotors.
  • Engineers responsible for the condition assessment rotating machine and would like to know the existence and the benefit of the core testing.
  • Engineers who wish to expand their service portfolio in testing.
  • Any industries/engineers involved with large HV Motors (6.6kV – 11kV / 17.5kV) and Generators (6.6 –30kV).

You will Learn

  • Stator core working principle
  • Stator core characteristics
  • Flux paths
  • Failure modes
  • Design the core flux test excitation circuit
  • Core Testing Types: Full flux test and ELCID test
  • Diagnostic test data interpretation


  • The design considerations for magnetic cores
  • In phase and quadrature flux in the laminations
  • How cores might fail
  • Core testing Testing principle
  • Core testing types
  • Power flux tests
  • Electromagnetic Core Imperfection detection (EL CID test)
  • Case studies


  •  Specialist Electrical Engineer with over 35 years’ experience in the field of machines and auxiliary equipment.
  • experience covers general design, redesign, construction, testing and application problems of motors, generators and auxiliary equipment.
  • leader in technical audits and specialized tests and measurements to qualify condition and cause of failure with recommendations of remedial methods using contemporary design techniques and practices.

Online – Virtual instructor-led

ENERGY1 ASIA Virtual instructor-led Training (ONLINE)

Due to the recent developments with COVID-19 we have, for the health and safety of our speakers and attendees, our selected multi-day courses will be delivered live online led by experience practitioners. This will enable you to experience a similar engagement experience to our successful traditional classroom setting which includes exercises, answering your question and provide feedback – all without having to travel anywhere!

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