Foundations of electricity: charge, voltage, current, power and energy, computation of power and
energy for electrical gadgets and household, simple billing calculations. Electricity supply:
definition and characteristics of AC and DC voltages and currents and their applications,
calculation of Instantaneous, RMS and Average voltage and current values and their relevance.
Transformer: definition and components of a transformer, principle of operation, ideal transformer
and characteristics, transformer types and ratings used by utilities in Ghana. AC circuit systems:
definition of 1-phase 2-phase and 3-phase circuit systems, voltage and current relationship
between the circuit systems, sample voltage drop and line loss calculation for electricity supply
from source to destination. Electricity supply: electricity utilities and functional roles, electricity
generation sources, hydro power generation process, transmission process, distribution process to
users in Ghana. Power factor: definition and relevance, active power, reactive power, and apparent
power, calculation of power factor and correction. Electric Motors: components of an electric
motor, basic principle of operation, motor types and applications. Electrical Safety: importance of
electrical safety, shock current, common sources of hazards, safe practices.