COURSE NAME:Substation protection and Troubleshooting


This course can be scheduled at your convenience, to request this course please click here


This training course provides an in-depth study of the methods used in substation protection for medium- voltage & high-voltage equipment.  Also, this course explains power transformer protection and substation bus protection.

In this training course, participants will review also on balanced and unbalanced electrical faults, relaying fundamentals, current transformers, and basic digital relay concepts

Participants will cover the troubleshooting for common substation devices, including power transformers, oil, air and vacuum circuit breakers, switchgear, ground grid systems, batteries, chargers and insulating liquids. This course focuses on what to do, when to do it and how to interpret the results from testing and maintenance.



Upon completion of this course, the participant shall be able to;


  • Protect common substation devices, including power transformers
  • Protect oil, air, and vacuum circuit breakers, switchgear, ground grid systems, batteries, chargers and insulating liquids.
  • Maintain common substation devices
  • Troubleshoot  common substation devices, including power transformers
  • Troubleshoot oil, air, and vacuum circuit breakers, switchgear, ground grid systems, batteries, chargers and insulating liquids


Day 1:Protection Principles

  • Overview of Power System Faults
  • Substation Protection Fundamentals
  • Current Transformers (includes a class exercise)
  • Over-current Protection Principles (includes a class exercise)


Day 2:Busbar & Transformer Protection

  • Differential Protection Principle
  • Bus Protection (includes a class exercise)
  • Transformer Differential Protection
  • Transformer Protection Exercise


Day 3: Circuits and Breaker Failure

  • Transformer Overcurrent, Overload, and Mechanical Protection
  • Transformer Overcurrent Protection Exercise
  • Substation Trip Circuits and Breaker Failure


Day 4: Circuit Breaker troubleshooting

  • Inspection
  • Testing
  • Troubleshooting
  • Interpreting test results
  • Devices covered
    • Air circuit breakers
    • Vacuum circuit breakers
    • Oil circuit breakers

Day 5: Transformers & Lightning Arrestors Troubleshooting

  • Types
  • Inspection
  • Troubleshooting
    • Insulation resistance
    • Winding resistance
    • Power factor tests
    • Coree excitation curren
    • Turns ratio (TTR)
    • Gas blanket tests

 Lightning Arrestors

  • Types
  • Inspection
  • Troubleshooting


This course has been designed for operation electrical substation technicians and engineers. Also for plant electricians responsible for performing day-to-day servicing and repairing of a company’s electrical equipment. This course will also benefit plant and troubleshooting engineers, and protection engineers. In addition personnel involved in plant operation and design as well as engineering contractor equipment specialists, should also find the course beneficial

    • 5 Day(s)

    The presentation is generally appealing to me. The dedication & devotion of the instructor are both laudable & admirable.
    Mohammed F. Alotaibi

    Really this course is important for any inspector, so I will recommended it for our employees. And thanks a lot!
    Ahmed Al-Yami

    You are doing excellent bringing such very talented instructor. Please keep it up.
    Ahmed Afifi
    Al-Zamil CoolCare

    I would like to appreciate you as well as the instructor for a good training due to the fact that the helping to gain new information about the types of valve with advantages and disadvantage as well. Many thinking.
    Zaki Ali Aldawood

    This course was very beneficial and helpful to understand one of the Major NDT method. I encourage ITC to continue with this performance.
    Talal Saad AlHasawi

    ITC service was in overall excellent. Thanks.
    Wael M. Morsy

    This course was good and a nice guide to the PMP exam. Thanks.
    Yazeed Mohamed Mreki
    General Authority of Civil Aviation (GACA)

    It was good course & good preparation with excellent instructor. Thanks a lot.
    Faisal Mahdi Al-Qahtani

    It was a nice course to have. I suggest taking this course with the same instructor to other people. Thanks for the instructor for his kindness & helfull during the course.
    Abdul-Moniem Al-Humoud

    It is very important course, which enable us to improve our knowledge to work approaching our big account and can be recall us the key account. This is will support us to active result for the best of the Co.
    Mohammed Amjad
    Al-Suwadi Services

    The instructor is highly and technical knowledgeable in explaining all the subject in the course taken.
    Noel V. Garan
    Coldstorec Group Of Saudi Arabia

    Instructor was well prepared and knowledgeable I gain lot of useful information.
    Gulam Khan
    Saudi Aramco

    It was a good learning experience. Got to know the concept involved in key account.
    Muthuraman Nachiappan
    Al-Suwadi Services

    The instructor Mr. Ahmed Sabry has a very nice spirit.
    Salam Fakhoury
    Al Khodari Company

    It is very useful to us and increase our knowledge.
    Mohammed Rashed Afifi
    Al Khodari Company

    The course is excellent and helpful. It help me in organizing the work in more safe manner.
    Muzammil Hayat
    Al Khodari Company

    The instructor is very knowledge and hard working, his way of teaching is very good.
    Ibrahim Darwish
    Al Khodari Company