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High Voltage Switches
Objectives

 

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

Outlines

 


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

Who Should Attend

 

  • 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.

Duration

5 Days

Start Date End Date Country City

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