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.