The module aims to provide a broad basic introduction to electrical science for non-specialists. It places an emphasis on dc circuit theory, electrical supply and rotating machinery.
Intended Learning Outcomes
The intended learning outcomes are that on completion of this module the student should be able to:
1. Employ the basic laws and analysis techniques of dc, single-phase and three-phase electrical systems.
2. Identify the requirements of various standard electrical systems and predict their performance.
3. Apply the fundamental laws of electromagnetism to transformers, motors, generators, and solenoids.
- Electrical quantities: resistance, inductance, capacitance, current, voltage, power, energy.
- Circuit theorems & analysis: Linearity, Ohm's law, Kirchoff's laws, application to dc circuits.
- Periodic waveforms, peak, mean and rms values.
- Simple phasor diagrams, power in ac circuits.
- Three-phase sources, balanced three-phase star connected loads.
- Magnetic fields: flux density, field strength, magnetic materials, permanent magnets, electromagnetism, Ampere's law, forces in magnetic systems.
- Energy storage: secondary batteries, fuel cells, capacitors and inductors. Common secondary battery technologies and their characteristics.
- Electromagnetic induction, the ideal transformer, forces on a conductor. Operation of a dc machine, 3 phase induction motor, synchronous machines. Generation of voltage.
Teaching and Learning
| Activity Type
| Practical Classes and workshop
| Guuided independent study
TTotal student effort for the module: 100 hours
Comprising 22 hours lectures and tutorials and a 2-hour practical exercise
|| Exam Length
Assessment is through an assignment report (50%) and a 1.5 hour unseen examination (50%).
- Warnes, L. (1998); Electronic and Electrical Engineering-Principles and Practice, 2nd Edition, UK: Macmillan Press Ltd (ISBN 0333743113)
- Cogdell, J.R. (1999); Foundations of Electric Power, UK: Prentice-Hall (ISBN 0139077677)
- Hughes, E. (2008) Electrical and Electronic Technology, 10th Edition Harlow, UK: Pearson Prentice Hall (ISBN 0132060110)
LECTURE 1: Introduction, Ohm’s Law, Electrical Components
LECTURE 2: Kirchhoff’s Laws, Voltage and Current Divider rule
LECTURE 3: Mesh analysis
LECTURE 4: Superposition Theorem
LECTURE 5: AC Circuits, Inductance, Capacitance
LECTURE 6: AC power, phasor diagram
LECTURE 7: Resonance
LECTURE 8: 3-phase circuit
LECTURE 9: Magnetic theory, transformers
LECTURE 10: DC generator, motor