Course Title: Solve problems in complex polyphase power circuits

Part B: Course Detail

Teaching Period: Term2 2013

Course Code: EEET6788C

Course Title: Solve problems in complex polyphase power circuits

School: 130T Vocational Engineering

Campus: City Campus

Program: C6112 - Advanced Diploma of Engineering Technology - Electrical

Course Contact: Program Manager

Course Contact Phone: +61 3 9925 4468

Course Contact Email: engineering-tafe@rmit.edu.au


Name and Contact Details of All Other Relevant Staff

Jan Jia

Phone: +613 9925 4390

Email: jan.jia@rmit.edu.au
 

Nominal Hours: 60

Regardless of the mode of delivery, represent a guide to the relative teaching time and student effort required to successfully achieve a particular competency/module. This may include not only scheduled classes or workplace visits but also the amount of effort required to undertake, evaluate and complete all assessment requirements, including any non-classroom activities.

Pre-requisites and Co-requisites

UEENEEG048A Solve problems in complex multiple path power circuits

Course Description

This unit covers procedures for determining correct operation of complex polyphase power circuits and providing solutions as they apply to electrical power engineering work functions. It encompasses working safely, problem solving procedures, including using electrical measuring devices, applying appropriate circuit theorems and providing solutions derived from measurements and calculations and justification for such solutions.


National Codes, Titles, Elements and Performance Criteria

National Element Code & Title:

UEENEEG049B Solve problems in complex polyphase power circuits

Element:

1. Prepare to solve problems in complex polyphase power circuits

Performance Criteria:

1.1 OHS procedures for a given work area are identified, obtained and understood.
1.2 OHS risk control work preparation measures and procedures are followed.
1.3 The nature of the circuit(s) problem is obtained from documentation or from work supervisor to establish the scope of work to be undertaken.
1.4 Advice is sought from the work supervisor to ensure the work is coordinated effectively with others.
1.5 Sources of materials that may be required for the work are established in accordance with established procedures.
1.6 Tools, equipment and testing devices needed to carry out the work are obtained and checked for correct operation and safety.


 

Element:

2. Solve problems in complex polyphase power circuits

Performance Criteria:

2.1 OHS risk control work measures and procedures are followed.
2.2 The need to test or measure live is determined in strict accordance with OHS requirements and when necessary conducted within established safety procedures.
2.3 Circuits are checked as being isolated where necessary in strict accordance OHS requirements and procedures.
2.4 Established methods are used to solving circuit problems from measure and calculated values as they apply to complex multiple path circuit.
2.5 Unexpected situations are dealt with safely and with the approval of an authorised person.
2.6 Problems are solved without damage to apparatus, circuits, the surrounding environment or services and using sustainable energy practices.
 

Element:

3. Complete work and document problem solving activities

Performance Criteria:

3.1 OHS work completion risk control measures and procedures are followed.
3.2 Work site is cleaned and made safe in accordance with established procedures.
3.3 Justification for solutions used to solve circuit problems is documented.
3.4 Work completion is documented and an appropriate person or persons notified in accordance with established procedures.

 


Learning Outcomes



Details of Learning Activities

Classroom tutorial activities to consolidate the theory of concepts of three phase power circuit analysis. Activities involve theoretical and practical exercises of polyphase power circuit analysis, complex power single and three phase circuits, balanced and unbalanced loads, three phase loads, line voltage drops, neutral currents, fault currents, fault loop impedance and transformer percentage impedance.

Practical activities to develop skill in software applications for calculation fault levels and voltage drops and verification of results with circuit simulation softwares: PSPICE or Multisim.

Projects on analysis of induction motor and transformer equivalent circuits and calculations of voltage drops, fault currents and application of Australian Standards for determination of Fault Loop Impedance
may be undertaken as part of a team or individual basis.


Research activities is designed to be independent study to do project research, design, construction, testing and problem solving activities.

The skills and knowledge described in this unit require a licence to practise in the workplace where plant and equipment operate at voltage above 50 V .

 


Teaching Schedule

weekTopic DeliveredCompetency Element CoveredAssessment Task
1Polyphase systems, Three Phase Y/D connected generators
 
1.1,1.2, 1.3in class activities: group discussion and practice exercises
 
2Phase Sequence Determination, Balanced three phase loads
 
1.4,1.5,1.6in class activities: group discussion and practice exercises
 
3Power in three phase system
 
2.1, 2.2, 2.3in class activities: group discussion and practice exercises
 
4Unbalanced three phase loads

Harmonics
 
 
2.4,2.5, 2.6


3.1,3.2,3.3
 
assignment 1, 15%
 
5Transformer equivalent electrical circuit Practical applications
 
2.1, 2.2, 2.3,3.2

3.3,3.4
 
 
6Transformer percentage impedance, fault currents
 
1.4,1.5,1.6in class activities: group discussion and practice exercises
 
7Fault currents in Multiple Earthing Neutral system
 
2.4,2.5, 2.6
 
in class activities: group discussion and practice exercises
 
8Symmetrical faults, Fault loop impedance 
 
2.1, 2.2, 2.3in class activities: group discussion and practice exercises
 
9
Solving problems in complex polyphase power circuits
 
2.4,2.5, 2.6

3.1,3.2,3.3
 
in class activities: group discussion and practice exercises
 
10
Asymmetrical faults
 
2.1, 2.2, 2.3in class activities: group discussion and practice exercises
 
11 Voltage drops
claculation, applications
1.4,1.5,1.6in class activities: group discussion and practice exercises
 
12Software simulation Multisim,Practical labs
 
2.4,2.5, 2.6

3.1,3.2,3.3
 
assignment 2 15%
 
13Induction motor equivalent circuit
 
3.1-3.4research project 20%
 
1414 Solving problems in complex polyphase power circuits, Multisim
 
2.4,2.5, 2.6in class activities: group discussion and practice exercises
 
15 Determining the operating parameters of existing circuit
 
2.1, 2.2, 2.3,3.2

3.3,3.4
 
 individual study
 
16 revisionall elements individual
17 &  18Centralised examinationall elementsexam 50% 


Learning Resources

Prescribed Texts

Boylestad"introductry to circuit analysis"


References

Boylestad, “Introductory Circuit Analysis”, Prentice Hall
-ASNZ3000 Wiring Rules



Other Resources

RMIT online learning resources are located on RMIT Online Learning Hub.
Follow the link to log in http://www.rmit.edu.au

student drive: S:/C6085/EEET6788C

 


Overview of Assessment

This course will be assessed through a range of practical exercises, assignments and progressive tests.


Assessment Tasks

Final Examination: 50%
Written assessment to demonstrate an understanding of polyphase power circuit analysis, complex power single and three phase circuits, balanced and unbalanced loads, three phase loads, line voltage drops, neutral currents, fault currents, fault loop impedance and transformer percentage impedance. 

2 Assignments  15% each

In each tutorial session students are give practice exercises to complete in class session
Practical activities in verifying calculations using simulation software for fault level calculations, voltage drops, motor and transformer equivalent electrical circuits.


Practical project 20%
Analysis of induction motor and transformer equivalent circuits and calculations of voltage drops, fault currents and application of Australian Standards for determination of Fault Loop Impedance may be undertaken as part of a team or individual basis.


Practical Exercises will be assessed progressively according to individual task criteria. All practical exercises must be:
- Undertaken according to safe working practice as specified by the School.
- Perform according to specified laboratory standards and practice including calibration, measurement and accurate reading.



This course is graded using the following course grades-

CHD- Competent with High Distinction
CDI- Competent with Distinction
CC- Competent with Credit
CAG- Competency Achieved - Graded
NYC- Not Yet Competent
DNS- Did Not Submit for Assessment

Make sure you understand the special consideration policy available at -

http://www.rmit.edu.au/browse;ID=qkssnx1c5r0y




 


Assessment Matrix

Competency UnitCourse CodeAssignments     practical project         exam
UEENEEG049BEEET6788C30%

cover element

1,2
 
20%

cover element 2, and 3

 
50%

cover elements 1,2 and 3

 

Other Information

In this course, minimum student directed hours are 12 in addition to 48 scheduled teaching hours.

Student directed hours involve completing activities such as reading on line resources, assignments, project work,individual student-teacher course -related consultation, visiting industrial exhibition.

Study and Learning Centre (SLC) provides free learning and academic development advice to you.
Services offered by SLC to support your numeracy and literacy skills are:

assignment writing, thesis writing and study skills advice
maths and science developmental support and advice
English language development

Please Refer http://www.rmit.edu.au/studyandlearningcentre to find more information about Study and learning Support

Disability Liaison Unit:

If you are suffering from long-term medical condition or disability, you should contact Disability Liaison Unit to seek advice and
support to complete your studies.

Please Refer http://www.rmit.edu.au/disability to find more information about services offered by Disability Liaison Unit

Late submission:

If you require an Extension of Submittable Work (assignments, reports or project work etc.) for 7 calendar days or less (from the original due date) and have valid reasons, you must complete and
lodge an Application for Extension of Submittable Work (7 Calendar Days or less) form and lodge it with the Senior Educator/ Program Manager.
The application must be lodged no later than one working day before the official due date. You will be notified within
no more than 2 working days of the date of lodgment as to whether the extension has been granted.

If you seek an Extension of Submittable Work for more than 7 calendar days (from the original due date) must lodge an Application for Special
Consideration form under the provisions of the Special Consideration Policy, preferably prior to, but no later than 2 working days
after the official due date.

Submittable Work (assignments, reports or project work etc.) submitted late without approval of an extension will not be accepted or marked.


Special consideration:

Please Refer http://www.rmit.edu.au/browse;ID=riderwtscifm to find more information about special consideration

Plagiarism:

Plagiarism is a form of cheating and it is very serious academic offence that may lead to expulsion from the University.

Please Refer: www.rmit.edu.au/academicintegrity to find more information about plagiarism.

Other Information:

All email communications will be sent to your RMIT email address and you must regularly check your RMIT emails.

 

Course Overview: Access Course Overview