COURSE NAME:High Voltage Switches


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


High voltage equipment plays an important role in the safe distribution of electrical power. The equipment needs to be operated in a safe manner securing continuity of supply to consumers.


This requires the equipment to be:


  • Well designed, installed, commissioned
  • Operated, and maintained in a satisfactory manner
  • Within a management system
  • Effective in meeting the reliability goals and
  • Aware of the need of maintenance balanced against equipment downtime and cost


The course focuses mainly on the installation, operation and maintenance of high voltage switchgear and equipment, with reference to auxiliary equipment necessary for its operation.



On successful completion of this course delegate will be able to understand:

  • The TAMCO high voltage switchgears types, installation, operations and maintenance.
  • The need for routine inspection, adequate maintenance of equipment and accurate record keeping
  • Methods of maintenance management, using safe systems of work
  • How to co-ordinate maintenance activities for best utilisation of time and resources, while ensuring safety is not compromised
  • Switchgear maintenance requirements and techniques - properties of insulating oils and their analysis
  • Outdoor high voltage switchgear maintenance requirements and techniques - cable installation and fault finding techniques
  • The use of non intrusive condition monitoring methods


Day 1

The Role and importance of the medium and high voltage air insulated and gas insulated switchgears in power systems


  • Circuit breakers
  • Ring mains unit
  • Earth switches
  • Reclosers and sectionalisers
  • Switchgear symbols on single-line diagrams
  • Switchgear selection
  • Substation switchgear layouts
  • Switchboards


Introduction to HV switchgears and arrangements


  • Substation arrangements
  • Auto- reclosers
  • Air insulated switchgear verses gas insulated switchgears
  • Live tank HV circuit breaker
  • Types of switchgears in a substation switchyard

Day 2

Sulphur HexaFlouride (SF6) circuit breaker


  • Compression principles
  • SF6 hazards and test equipments
  • Dead and Live tank HV circuit breakers
  • Operation mechanisms of HV circuit breakers


Vacuum circuit breakers


  • Vacuum interrupters operation and maintenance
  • Types of vacuum circuit breaker characteristics
  • Other applications and installations of vacuum interrupters
  • Vacuum contactors

Day 3

TAMCO high voltage switchgears components, operation and maintenance


  • Air insulated switchgear
  • Gas insulated switchgear
  • Single busbar switchgear
  • Double busbar switchgear
  • High voltage fuses
  • Ring mains unit
  • Neutral earth resistors
  • Container sub station

Day 4

Maintenance and testing of TAMCO high voltage switchgears


  • Importance of maintenance and testing
  • Maintenance strategies
  • Preventive and condition-based maintenance services
  • Conventional maintenance servicing
  • Manufacturer testing
  • Installation and commissioning
  • Documentation requirements
  • Maintenance post commissioning
  • Failure reporting
  • Infrared testing
  • Typical switchgear alarms


Day 5

Protection and types of relay of high voltage installation incorporating TAMCO switchgears


  • Characteristics of switching devices
  • Protective relay types and characteristics
  • Busbar arrangement protection schemes
  • Solid state relays
  • Overcurrent relay
  • Differential relay
  • Fault currents
  • Short circuit current situation


  • Electrical Professionals
  • Electrical Engineers
  • Technicians
  • Professionals responsible for the operation and maintenance of distribution equipment, who will benefit from sharing experiences in the planning, organisation, and implementation of maintenance activities.
    • 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