HV MV LV Substation Design,
Construction, and Maintenance.

Certified for 3 CPD Points (ECSA)

11 -15 March 2024
Sandton Centre, Johannesburg South Africa

Transformer Operations, Testing,  and Maintenance

Register Now! Limited Seats Available!

R17, 999.00 Per Delegate

Course overview:

High voltage substation design is a complex engineering activity that embraces a wide variety of disciplines. This comprehensive overview brings these disciplines together to give you an interactive guide to high voltage, air or gas insulated substation design.

The course considers all aspects of the design process, including a detailed review of network topology, the interaction of the different elements of substation design and operation, an introduction to substation equipment and its function, and an explanation of the many interfaces between engineers, architects and other specialists that are required for substation construction.

The attendees will be guided through a step-by-step study of the substation design and construction and maintenance processes. All phases for MV/LV, MV/MV & MV/HV substation design, from initial site review, selection, grounding design, all the way to substation start-up and commissioning will be covered. Moreover, regular Substation maintenance can limit exposure to the risk of significant plant downtime by preventing or identifying potential issues before problems occur.

Exercises, group discussions, pictures and videos will be used to further demonstration of concepts.

Key benefit of attending this event includes:

  • Have overall understanding of substation technology
  • Understand the concept of substation design practices and equipment selection
  • Acquire in-depth knowledge of substation earthing design, determination of step potential, touch potential, grid potential rise etc.
  • Understand and apply different methods and technologies of preventive, predictive and corrective maintenance of substation

Targeted Audience:

  • Substation design engineers
  • Industrial, utility, or plant engineers
  • Engineering technicians
  • Substation operations specialists
  • Consulting engineers
  • Transmission and distribution line design engineers and technicians
  • Project managers
  • Construction supervisors
  • Managers of design engineering departments
  • Electric utility engineers involved in distribution engineering, operations, or planning

Course Outline:


  • Classification of sub-stations and purposes
  • Comparison between indoor and outdoor substations
  • Transformer substations, pole mounted substations, underground substations
  • Bus-bar arrangement in substations
  • Key diagram of 66/11 substation, 11kV/400 V substation

substation design considerations

  • Site selection
  • Environmental considerations
  • Safety considerations
  • Maintenance considerations

 Substation Physical layout

  • Layout considerations
  • Distribution substations
  • Transmission substations
  • Switching stations
  • Typical bus configurations
  • Protection of substation insulation
  • Electrical clearances
  • Bare conductors
  • Rigid bus design
  • Application of mobile transformers and substations

 Selection and application of Substation equipment  

  • Major substation equipment: Power transformer , power circuit breakers, Metal Clad switchgear, substation voltage regulators, shunt capacitor equipment, air switches, surge arresters, automatic circuit reclosers, instrument transformers, coupling capacitors and coupling capacitor voltage transformers, mobile units
  • indoor cellular substations, gas-insulated substations (GIS) and 22kV-132kV mobile substation skids for open-cast mining
  • Secondary Substation Equipment
  • Auxiliary Equipment and Systems
  • Protective Relaying and Control
  • Bill of materials (BOM) and Bill of quantities (BOQ)
  • Substation control and automation

 Design of Substation grounding system

  • Differences in earthing design for various voltage levels (HV, MV & LV)
  • Earthing design flowchart
  • Grid Design Procedures and data requirements
  • Substation earthing system components
  • Common Substation earthing conductors
  • Preliminary Design
  • Main earth grid installation layout
  • Computation of Mesh Voltage, Step potential, Touch potential and Ground potential rise (GPR)
  • Equipment earthing
  • Yard surfacing
  • Fences
  • Use of Computer Analysis in Grid Design
  • 132/11 kV substation earthing practical design example
  • 132/33 kV substation earthing practical design example

 Substation Maintenance Program

  • Circuit Breaker Maintenance
  • Dissolved Gas Analysis
  • Oil Quality: Dielectric Strength, Acid, Interfacial Tension, Power Factor, Water
  • Relay maintenance – Electro-mechanical relays only
  • Relay functional testing – All relays
  • Battery Maintenance – Capacity discharge testing, Intercell resistance, Specific gravity, Temperature, Electrolyte level
  • Series Capacitor Bank, Maintenance
  • Thermographical (infrared) Inspection
  • Equipment Inspections
  • Public Safety Inspections: Warning signs, Fence and gate integrity, Ground erosion, Vandalism, Vegetation, outside grading or other providing, potential access
  • Doble Testing: Overall tests, Bushing tests, Hi-collar tests, Oil tests, Surge arrester tests, SFRA and LR testing

End of the workshop



While both In-House and Online training can present with cost-effectiveness and time-efficacy, there are some very specific differences between in-house courses and those based online.
The demand for additional courses by individuals or groups of people is increasing. Still, it depends entirely on the preferences of a person what type of training he or she wants to receive. Online courses and in-house training carry some similarities but they are considered to exhibit some very pivotal differences too. Despite that, both types of learning can be really beneficial for attendees.

For Registration and other Training arrangements,
contact us on the detail below.

SOUTH AFRICA : +27 11 057 6001
TANZANIA Cell: +255 769 688 544
WhatsApp +27 79 574 0389
info@bmktraining.co.za / www.bmktraining.com