BEng Electrical and Electronic Engineering with Industrial Experience

Year of entry: 2024

Course unit details:
Power System Plant & Protection

Course unit fact file
Unit code EEEN30252
Credit rating 10
Unit level Level 3
Teaching period(s) Semester 2
Offered by Department of Electrical & Electronic Engineering
Available as a free choice unit? No


This unit will cover the following topics:

Power system plant:

  • Overhead line (Basic constructional details, illustration of electrical clearances, discussion of thermal ratings)
  • Cables (Basic construction of single core cables, electrical parameters of cables, thermal modelling)
  •  Switchgear (Types of switchgear, arc model, high and low resistance interruption techniques, description of transient recovery voltages)
  • Transformers (Transformer structure and functions of basic components including oil/cellulose insulation materials, magnetic circuit and volts per turn calculation, phasor connections / parallel operation / impedance selection)

 High voltage testing techniques and insulation design of power system plant (including a laboratory class)

Protection of power systems

  • Earth-fault calculation for a power system, basic principles of overcurrent, differential and distance protection, Numerical solution of an overcurrent protection and coordination scheme for protecting a typical power network. 



This course unit detail provides the framework for delivery in 2020/21 and may be subject to change due to any additional Covid-19 impact.  Please see Blackboard / course unit related emails for any further updates.

The course unit aims to:

  • Introduce the fundamental issues relating to the design of high voltage power system plant
  • Introduce the use of high voltage testing within a laboratory environment
  • Explore the protection of power systems


Learning outcomes

On the successful completion of the course, students will be able to:




  • Describe the fundamental design principles of the four major items of power system plant (cables, lines, transformers and switchgear)




  • Explain the basic design of simple power system protection schemes




  • Understand the need for HV testing of power system equipment




  • Analyse the design of a simple protection scheme and assess if it is fit for purpose




  • Appraise the design of an item of power system plant and determine whether it is fit for purpose




Teaching and learning methods

This course is delivered through face to face lectures that involve problem classes during the sessions. Additional material including films and worksheets are provided in the virtual learning environment. Students are encouraged to ask questions during the classes and use is made of to capture these.

The course also involves demonstrations within the high voltage laboratories where students see practical testing being carried out on power system equipment.


Assessment methods

Method Weight
Other 20%
Written exam 80%

Coursework Plant Design Exercise:

Report of a maximum of 5 A4 pages:

This coursework forms 10% of the unit assessment.

Coursework Blackboard quiz:

These quizzes form 10% of the unit assessment.

Study hours

Scheduled activity hours
Lectures 20
Practical classes & workshops 2
Tutorials 4
Independent study hours
Independent study 74

Teaching staff

Staff member Role
Haiyu Li Unit coordinator
Ian Cotton Unit coordinator

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