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Study-Unit Description
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CODE EPC3102

 
TITLE Electrical Power 2

 
LEVEL 03 - Years 2, 3, 4 in Modular Undergraduate Course

 
ECTS CREDITS 5

 
DEPARTMENT Industrial Electrical Power Conversion

 
DESCRIPTION - Symmetrical Components and Unbalanced Faults: Definition of Symmetrical Components; Derivation of Sequence Circuits for Plant Components; Unbalanced faults.
- Power System Stability: Synchronous Generator Control Loops; Steady State Stability; Transient Stability.
- Current and Voltage Transformers: Construction; Applications; Equivalent Circuit; Operation; Errors; Operation under Fault currents; Effect of core saturation on behaviour; Terminology and specifications.
- Circuit Breakers: Theory of Circuit Breaking; Ratings; Effect of Network Parameters on CB Operation; Practical Circuit Breakers.
- Power System Voltage Surges: Over-voltages experienced by the power system; Over-voltage tests; Protection against over-voltages; Insulation Coordination; Propagation of surges; Bewley Lattice Diagram.

Study-unit Aims:

To further enhance the understanding of Electric Power Systems: Analysis of plant, transmission and distribution Systems under unbalanced and transient conditions.

Learning Outcomes:

1. Knowledge & Understanding:

By the end of the study-unit the student will be able to:
- Explain the principles of transient operation of synchronous generators.
- Understand how to use the symmetrical component method in power systems.
- Understand current transformers and voltage transformers used for protection.
- Explain the operation of circuit breakers used for protection in power systems.
- Explain voltage surges in power systems.

2. Skills:

By the end of the study-unit the student will be able to:
- Perform calculations related to unsymmetrical three phase faults in power systems.
- Perform calculations and analysis related to transient stability of synchronous generators in power systems.
- Calculate voltage surges in power systems.
- Calculate the ratings of CTs and VTs used for protection systems.

Main Text/s and any supplementary readings:

- Power System Analysis, John Grainger, Jr., William Stevenson.

 
ADDITIONAL NOTES Pre-requisite Study-unit: EPC2102

 
STUDY-UNIT TYPE Lecture, Laboratory Session and Tutorial

 
METHOD OF ASSESSMENT
Assessment Component/s Resit Availability Weighting
Practical No 15%
Examination (2 Hours) Yes 85%

 
LECTURER/S Cedric Caruana Mifsud

 
The University makes every effort to ensure that the published Courses Plans, Programmes of Study and Study-Unit information are complete and up-to-date at the time of publication. The University reserves the right to make changes in case errors are detected after publication.
The availability of optional units may be subject to timetabling constraints.
Units not attracting a sufficient number of registrations may be withdrawn without notice.
It should be noted that all the information in the study-unit description above applies to the academic year 2017/8, if study-unit is available during this academic year, and may be subject to change in subsequent years.
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