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Start Date : 29 Sep,2024
End Date   : 3 Oct,2024
Duration    : 5 Days
Price          : $ 3,995 ( SAR 14,981.25 )




The course focuses mainly on the construction, operation, maintenance and testing of switchgears, with reference to auxiliary protective relays and equipment necessary for its operation. Industrial electrical installations usually comprise of low voltage, medium voltage and high voltage equipment and switchgears. These differences in voltage ratings has many safety aspects and understanding of its operations and maintenance to be considered very carefully. To ensure safety of operators and maintenance personnel, proper switching procedures are necessary and more so when the circuits have multiple feeds and are complex. Switchgear operation and maintenance plays an important role in the safe distribution of electrical power. 


Course Objectives: 

At the end of this course, participant will be able to:

  • Understand the role and importance of LV, MV and HV switchgears 

  • Determine the components and operations gas and vacuum circuit breakers 

  • Understand the operation and selection of relays and switchgear interlocking 

  • Explain the different types of maintenance and testing for switchgears 

  • Analyse results from condition based maintenance 



Course Content: 

1. Types of protection system in an electrical installation 

  • Types of low voltage protection and control equipment 

  • Circuit breakers operation and construction 

  • Fuses and classifications for protective devices 

  • Discrimination and protective devices rating selection 

  • Types of current situation and fault clearing process 

  • Preference of fuses over circuit breakers 


2. Air, Sulphur HexaFlouride (SF6) and vacuum circuit breakers 

  • Types of medium voltage circuit breaker 

  • Air circuit breaker construction and operation 

  • Sulphur HexaFlouride (SF6) circuit breaker construction and operation 

  • Vacuum circuit breaker construction and operation 

  • MV circuit breaker solid state tripping systems 

  • SF6 hazards and test instruments 


3. HV circuit breakers, current and potential transformers 

  • Types of high voltage switchgears 

  • Live tank and dead tank circuit breakers 

  • Operation and switching mechanisms of HV circuit breakers 

  • HV current transformer construction operation and maintenance 

  • HV potential transformer features and operations 

  • Auto reclosers, load switches, disconnectors and sectionalisers 


4. Types of relay for protection and safety 

  • Types of protective relays and functions 

  • Protection characteristics and applications 

  • Switchgear interlocking 

  • Solid state protection relays for MV & HV installation 

  • Safety in MV and HV substations 

  • Types of MV and HV switchboards 


5. Maintenance and testing of switchgears 

  • Importance of maintenance and testing 

  • Types of maintenance including conditioned base maintenance 

  • Installation and commissioning and post commissioning maintenance 

  • Documentation requirements 

  • Manufacturer testing, factory and site acceptance tests 

  • Failure reporting and analysis of partial discharge and infrared tests 


Targeted Audience: 

  • Electricians 

  • Electrical Supervisors 

  • Plant Electricians 

  • Operations & Maintenance Engineers & Supervisors 

  • Maintenance Professionals 

LV, MV, HV Switchgear Operation and Maintenance

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