Aims
The module aims to provide a broad basic introduction to electrical science for nonspecialists. 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, singlephase and threephase 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.
Content
 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.
 Threephase sources, balanced threephase 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

Hours

Comments

Practical Classes and workshop




Tutorial




Lecture




Guuided independent study




TOTAL

100


TTotal student effort for the module: 100 hours
Comprising 22 hours lectures and tutorials and a 2hour practical exercise
Assessment
Assessment Type

Weigth

Exam Length

Coursework

50%


Exam

50%

1.5h

TOTAL

100


Assessment is through an assignment report (50%) and a 1.5 hour unseen examination (50%).
Readings
 Warnes, L. (1998); Electronic and Electrical EngineeringPrinciples and Practice, 2nd Edition, UK: Macmillan Press Ltd (ISBN 0333743113)
 Cogdell, J.R. (1999); Foundations of Electric Power, UK: PrenticeHall (ISBN 0139077677)
 Hughes, E. (2008) Electrical and Electronic Technology, 10th Edition Harlow, UK: Pearson Prentice Hall (ISBN 0132060110)
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Lecture Plan
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: 3phase circuit
LECTURE 9: Magnetic theory, transformers
LECTURE 10: DC generator, motor