ENEX12001 - Electrical Power and Machines

General Information

Unit Synopsis

In this unit, you will model basic power system components and electrical machines using simplified linear equivalent circuits. You will explain the relationship between power and energy, and calculate power and energy in power networks and electrical machines. You will apply problem-solving techniques in the analysis of balanced three-phase power circuits using per-unit methodology. You will also investigate and compare the construction and operational characteristics of direct current (DC) and alternating current (AC) electrical machines. You will explain different drive system topologies for the electrical machines. You will explain electrical machine protection and control schemes. In this unit, you must complete compulsory practical activities. Refer to the Engineering Undergraduate Course Moodle site for proposed dates.


Level Undergraduate
Unit Level 2
Credit Points 6
Student Contribution Band SCA Band 2
Fraction of Full-Time Student Load 0.125
Pre-requisites or Co-requisites
Prerequisite: (ENEG11009 Fundamentals of Energy and Electricity or PHYS11185 Engineering Physics B) AND MATH11218 Applied Mathematics.

Important note: Students enrolled in a subsequent unit who failed their pre-requisite unit, should drop the subsequent unit before the census date or within 10 working days of Fail grade notification. Students who do not drop the unit in this timeframe cannot later drop the unit without academic and financial liability. See details in the Assessment Policy and Procedure (Higher Education Coursework).

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Unit Availabilities from Term 2 - 2023

Term 2 - 2023 Profile
Mixed Mode
Term 2 - 2024 Profile
Mixed Mode

Attendance Requirements

All on-campus students are expected to attend scheduled classes – in some units, these classes are identified as a mandatory (pass/fail) component and attendance is compulsory. International students, on a student visa, must maintain a full time study load and meet both attendance and academic progress requirements in each study period (satisfactory attendance for International students is defined as maintaining at least an 80% attendance record).

Assessment Overview

Recommended Student Time Commitment

Each 6-credit Undergraduate unit at CQUniversity requires an overall time commitment of an average of 12.5 hours of study per week, making a total of 150 hours for the unit.

Assessment Tasks

Assessment Task Weighting
1. Written Assessment 20%
2. Online Quiz(zes) 25%
3. Practical and Written Assessment 25%
4. Online Test 30%

This is a graded unit: your overall grade will be calculated from the marks or grades for each assessment task, based on the relative weightings shown in the table above. You must obtain an overall mark for the unit of at least 50%, or an overall grade of ‘pass’ in order to pass the unit. If any ‘pass/fail’ tasks are shown in the table above they must also be completed successfully (‘pass’ grade). You must also meet any minimum mark requirements specified for a particular assessment task, as detailed in the ‘assessment task’ section (note that in some instances, the minimum mark for a task may be greater than 50%).

Consult the University’s Grades and Results Policy for more details of interim results and final grades

Past Exams

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Previous Feedback

Term 2 - 2022 : The overall satisfaction for students in the last offering of this course was 100.00% (`Agree` and `Strongly Agree` responses), based on a 40.00% response rate.

Feedback, Recommendations and Responses

Every unit is reviewed for enhancement each year. At the most recent review, the following staff and student feedback items were identified and recommendations were made.

Source: Unit Evaluation
Students appreciated the set out of the unit, well-explained contents, clearly stated expectations, alignment of textbook and weekly contents, and additional resources in this unit.
Maintain this good practice.
Action Taken
This good practice was maintained.
Source: Unit Evaluation
Students identified the best aspects of the unit as both the practical hands-on experience conducted at the Lab sessions, as well as the interaction with the students throughout the tutorial and lecture zooms by the unit coordinator.
Maintain this good practice.
Action Taken
This good practice was maintained.
Source: Unit Evaluation
Students felt overwhelmed by the amount of unit contents covered in this unit.
Moderate the amount of unit contents further in the next offering to remove the unnecessary information.
Action Taken
Extra unit contents were introduced to students on Moodle as optional reading materials to extend their knowledge.
Source: Unit Coordinator
New online quiz questions require revision in terms of difficulty. Three attempts for each online quiz would be recommended.
Revise the fortnightly online quizzes and increase the number of quiz attempts to three.
Action Taken
A new set of quiz questions were implemented and students were allowed to try the online quizzes three times.
Source: In class student feedback
Students appreciated the amount of support and help they have recieved from the unit coordinator throughout the term.
Maintain this good practice in future offerings.
Action Taken
Source: Unit Coordinator
The difficulty of online quiz questions should be moderated according to the unit contents.
In future offerings, revisit the online quiz question bank and adjust the difficulty of the questions according to the class activities, and unit contents, especially to the tutorial workings.
Action Taken
Unit learning Outcomes

On successful completion of this unit, you will be able to:

  1. Model basic power system components and machines using simplified linear equivalent circuits
  2. Explain the relationship between power and energy; calculate power and energy in power networks and electrical machines
  3. Compare and explain features of DC and AC electrical machines with regard to their construction and operational characteristics
  4. Compare and explain features of drive systems, protection and control schemes for electric machines
  5. Apply appropriate laboratory techniques and software tools to understand power systems and electrical machines
  6. Create professional documentation of the solutions, designs and analysis processes using electrical terminology, diagrams and symbols that conform to Australian or International Standards
  7. Work individually and collaboratively in a team to produce high-quality outputs.

The Learning Outcomes for this unit are linked with the Engineers Australia Stage 1 Competency Standards for Professional Engineers in the areas of 1. Knowledge and Skill Base, 2. Engineering Application Ability and 3. Professional and Personal Attributes at the following levels:

1.4 Discernment of knowledge development and research directions within the engineering discipline. (LO: 1N 2N 3N 4N 5N )
1.5 Knowledge of engineering design practice and contextual factors impacting the engineering discipline. (LO: 4N )

1.2 Conceptual understanding of the mathematics, numerical analysis, statistics, and computer and information sciences which underpin the engineering discipline. (LO: 1I 2I 3I 4I 5I )
1.6 Understanding of the scope, principles, norms, accountabilities and bounds of sustainable engineering practice in the specific discipline. (LO: 3I 4I 5I )
2.1 Application of established engineering methods to complex engineering problem solving. (LO: 1I 2I 3I 4I 5I )
3.1 Ethical conduct and professional accountability. (LO: 6I 7I )
3.2 Effective oral and written communication in professional and lay domains. (LO: 3I 4I 5I )
3.3 Creative, innovative and pro-active demeanour. (LO: 5I 6I 7I )

1.1 Comprehensive, theory-based understanding of the underpinning natural and physical sciences and the engineering fundamentals applicable to the engineering discipline. (LO: 1I 2I 3A 4A 5I )
1.3 In-depth understanding of specialist bodies of knowledge within the engineering discipline. (LO: 1I 2A 3A 4A 5A )
2.2 Fluent application of engineering techniques, tools and resources. (LO: 2A 3A 4A 5A )
3.4 Professional use and management of information. (LO: 1A 2A 3A 4A 5A 6A )
3.5 Orderly management of self, and professional conduct. (LO: 5A 6A 7A )
3.6 Effective team membership and team leadership. (LO: 5A 6A 7A )

Note: LO refers to the Learning Outcome number(s) which link to the competency and the levels: N – Introductory, I – Intermediate and A - Advanced.

Refer to the Engineering Undergraduate Course Moodle site for further information on the Engineers Australia's Stage 1 Competency Standard for Professional Engineers and course level mapping information

Alignment of Assessment Tasks to Learning Outcomes
Assessment Tasks Learning Outcomes
1 2 3 4 5 6 7
1 - Written Assessment
2 - Online Quiz(zes)
3 - Practical and Written Assessment
4 - Online Test
Alignment of Graduate Attributes to Learning Outcomes
Introductory Level
Intermediate Level
Graduate Level
Graduate Attributes Learning Outcomes
1 2 3 4 5 6 7
1 - Communication
2 - Problem Solving
3 - Critical Thinking
4 - Information Literacy
5 - Team Work
6 - Information Technology Competence
7 - Cross Cultural Competence
8 - Ethical practice
Alignment of Assessment Tasks to Graduate Attributes
Introductory Level
Intermediate Level
Graduate Level
Assessment Tasks Graduate Attributes
1 2 3 4 5 6 7 8 9 10