Course Overview

The focus is on the building blocks of electrical engineering, the fundamentals of electrical design and integrating electrical engineering know-how into the other disciplines within an organization. Unnecessary theory will be minimized and you will focus on best practice over the two days of the course.

The course will commence by reviewing basic electrical circuits and electrical laws. You will then be exposed to the basic principles of electrical generation, transmission, and distribution. Electrical distribution will then be covered in considerably more detail. The interesting area of electrical measurements as applied to single phase and three phase systems will then be reviewed. You will be exposed to earthing with a strong focus on safety issues. Transformers will then be examined with an emphasis on power transformers as used in the electrical distribution industry. The first day will be concluded with coverage of power system components in terms of isolators, fuses and circuit breakers.

Course Objectives

On completion of this course participants should:

  1. Know the Basic Electrical Parameters (Voltage, Current, and Resistance), their units of measurement (Volts, Amperes, and Ohms) and inter‐relationship (Ohms Law).
  2. be able to relate these parameters to the Basic Electrical Circuit and Series and Parallel Circuit configurations.
  3. Understand the difference between continuity and insulation resistance;
  4. Know how to calculate Electric Power and Energy consumption;
  5. Understand the information marked on equipment for rating purposes;
  6. Understand the characteristics of and differences between direct current (D.C.) and alternating current (A.C.);
  7. Understand the need for electrical protection, the types of abnormal condition for which protection is required, the types of protective device available for use and method of operation;
  8. Be able to select a protective device of the correct type and rating;
  9. Understand the principles of earthing;
  10. Understand the need for and difference between switching and isolation, including the characteristics of such devices and the importance of correct polarity;
  11. Have an awareness of the different supply arrangements (LV and HV) to work premises and the arrangement of building electrical installations.
  12. Understand the different types constructions of electrical equipment and the use of extension leads.

Who Should Attend

  • Civil, mechanical, chemical, mining engineers, technologists and technicians
  • Managers who are involved with or work with staff and projects in electrical engineering
  • Non-electrical engineers and technicians
  • Non-electrical personnel who want to understand the broader picture
  • Plant and facility engineers
  • Procurement and buying staff
  • Project managers

Course Content

Module (01) Overview of the Electric Power Systems

  • A brief historical perspective
  • Overview of course

Module (02) Basic Concepts

  • Units and electrical quantities
  • Voltage, current, resistance, power, energy, frequency
  • Inductance and capacitance
  • Ohm’s law, rms and average values
  • Single and three phase systems
  • Power factor

Module (03) Electrical Generation, Transmission and Distribution

  • Various forms of energy
  • Energy conversion
  • Modern power station
  • Coal-fired power plant
  • Hydro and nuclear
  • Impact on environment
  • Solar, wind, geothermal
  • Transmission of electricity
  • Distribution
  • Power demand and tariffs
  • Power factor
  • HVDC

Module (04) Electrical Distribution

  • Power source
  • Typical electrical power system
  • Electrical distribution systems
  • Substations
  • Step down transmission
  • Distribution substation
  • Distribution feeder circuits
  • Switches and circuit breakers
  • Industrial and residential customers
  • Types – radial, loop, network
  • Network reliability (outages/power interruptions)
  • Power transformers and distribution boards

Module (05) Electrical Measurements & Applications

  • Electrical parameters – W/VA/VAr
  • Measuring
  • Power and energy measurement
  • Smart metering
  • Measuring voltages, currents and resistance

Module (06) Isolators, Fuses and Circuit Breakers

  • Isolation
  • Electrical faults
  • Fuses
  • Isolation, switching, tripping
  • Circuit breakers
  • Components of circuit breakers
  • Medium voltage circuit breakers

Module (07) Electrical Rotating Machines – Ac and Dc

  • Basic principles
  • Machines
  • DC motor operation
  • Speed, flux and armature voltage
  • Speed control
  • Single phase AC motors
  • 3-phase induction motor
  • Synchronous machines
  • Torque versus speed
  • Efficiency and power factor

Module (08) Electrical Lighting and Illumination

  • Incandescent lamps
  • High intensity discharge lamps
  • Mercury vapour
  • Metal halide lamps
  • Fluorescent lamps
  • Compact fluorescent lamps
  • LEDs
  • Luminaire concepts
  • Energy efficiency

Module (09) Power Electronics and Applications

  • Semi conductor devices
  • Motor controllers
  • Rectifiers
  • AC motors and soft starting
  • Variable speed drives

Module (10) Power Quality

  • Power quality problems
  • Voltage variations
  • Overvoltage and undervoltages
  • Voltage imbalances
  • Voltage and frequency variations
  • Interruptions and surges
  • Lightning and harmonics
  • Harmonic compensation

Module (11) Electrical Safety and National Electrical Codes

  • Key elements of National Electrical Codes (AS3000/NEC/CEC/SANS)
  • Electrical hazards
  • Electrical shock
  • Arc flash and burns
  • Personal protective equipment
  • Safety through better design and installation
  • Work permits
  • Authorisation personnel
  • Training and first aid
  • Legislation

Module (12) Customer Installations

  • Metering and billing
  • Tariff structures
  • Connections

Module (13) The Entire Electrical Project

  • Design rules
  • Specification
  • Procurement
  • Installation
  • Commissioning
  • Punchlist of defects
  • Contractual disputes
  • Certificate of compliance

Module (14) The Electrical Engineer/Technologist/Technician

  • The engineering team
  • Roles of the team
  • Management of the engineering team
  • Leading the team

Module (15) Load Forecasting, Planning and Project Evaluation

  • Load forecasting principles
  • Forward planning
  • Supply and demand side management
  • Evaluation of electrical projects

Module (16) Modern Developments

  • The smart grid
  • Substation automation and industrial IT
  • Data communications (including wireless)
  • Cost of carbon/emissions trading