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The University of Southampton

ELEC6222 Power and Distribution

Module Overview

This module introduces students to fundamental issues in the design and operation of electricity transmission and distribution networks. There is a particular focus on understanding how to specify equipment, including through the use of power flow modelling tools such as ERACS and PowerWorld. The course is primarily designed for MSc Energy & Sustainability w/EPE students, but is available for MEng students as an option on the proviso that ELEC3213 has not been taken previously. The module is assessed 50% by courseworks and 50% by exam. Throughout the assessment there is an emphasis on the provision of engineering justification for design decisions, using the results obtained from simulations and calculations. These are key transferrable skills which will be valuable throughout your career.

Aims and Objectives

Learning Outcomes

Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

  • Identify major components of power transmission and distribution systems and substations
  • Know and appreciate the key factors in equipment specification and network design
Subject Specific Intellectual and Research Skills

Having successfully completed this module you will be able to:

  • Describe the principle of operation of transmission and distribution equipment
  • Design protection schemes for common distribution network scenarios
  • Demonstrate awareness of the drivers of change in how networks are designed and operated
Transferable and Generic Skills

Having successfully completed this module you will be able to:

  • Utilise the results of engineering calculations to justify design approaches
Subject Specific Practical Skills

Having successfully completed this module you will be able to:

  • Explain principles of operation of protection systems and design simple protection systems for transmission lines and transformers.
  • Solve typical problems associated with load flow, formulate admittance matrices and perform nodal analysis
Disciplinary Specific Learning Outcomes

Having successfully completed this module you will be able to:

  • Use commercial software for power systems analysis


Transmission and distribution (T&D) network design - Overview of common network structures - Position and function of key components Load flows - Simple radial and ring feeder load flow calculations - Interconnected system load flow by nodal analysis - Interactive solution of nodal admittance matrix by Gauss Siedel method Cables & Overhead Lines - Key design principles - Ratings & limitations - Accessories - Economics Distribution substation/network design - Radial and Ring configurations - Power flow analysis - Substation equipment layout - Remote monitoring & operation - Asset ratings Protection Schemes - Switchgear & breakers - Fuse protection - Overcurrent protection - Directional protection - Distance protection - Differential protection Distribution reliability - Faults - Automation of Protection - Post fault restoration New trends in T&D - Impact of automation - Condition Monitoring - Future challenges

Learning and Teaching

Teaching and learning methods

The theory is covered through a range of lecture activities, along with drop in sessions to provide assistance with the coursework elements.

Wider reading or practice50
Preparation for scheduled sessions12
Follow-up work12
Completion of assessment task42
Total study time150

Resources & Reading list

Gers & Holmes (2011). Protection of Electricity Distribution Networks. 

Glover, Sarma and Overbye. Power System Analysis and Design. 

Turan Gonen. Electric Power Distribution System Engineering. 

Turan Gonen. Electric Power Transmission System Engineering: Analysis & Design. 



MethodPercentage contribution
Continuous Assessment 50%
Final Assessment  50%


MethodPercentage contribution
Set Task 100%


MethodPercentage contribution
Set Task 100%

Repeat Information

Repeat type: Internal & External

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