ELEC5205: High Voltage Engineering (2020 - Semester 2)
| Unit: | ELEC5205: High Voltage Engineering (6 CP) |
| Mode: | Normal-Day |
| On Offer: | Yes |
| Level: | Postgraduate |
| Faculty/School: | School of Electrical & Computer Engineering |
| Unit Coordinator/s: |
Dr Sathiakumar, Swamidoss
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| Session options: | Semester 2 |
| Versions for this Unit: |
| Campus: | Camperdown/Darlington |
| Pre-Requisites: | (ELEC3203 OR ELEC9203 OR ELEC5732) AND (ELEC3206 OR ELEC9206 OR ELEC5734). |
| Brief Handbook Description: | The unit provides advanced knowledge associated with high voltage engineering methods, techniques and equipment. It is divided into two sections. The first section presents fundamentals of the failure mechanisms of solid, liquid and gaseous insulation at high voltages. It also discusses consequent design principles for high-voltage equipment; of the generation of high direct, alternating and impulse voltages for testing high-voltage equipment; and of methods for monitoring and assessing the condition of high-voltage equipment such as dissolved gas analysis for oil-filled transformers and partial discharge in cables. The second section presents in detail all the high-voltage equipment and in particular underground cables, overhead transmission lines, transformers, bushings and switchgear. It finally offers asset management solutions for modern transmission and distribution electricity networks. |
| Assumed Knowledge: | The following previous knowledge is assumed for this unit. Circuit analysis techniques, electricity networks, power system fundamentals. |
| Timetable: | ELEC5205 Timetable | ||||||||||||||||||||||||||||||
| Time Commitment: |
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| T&L Activities: | Tutorial: Tutorials on practical examples and industrial case studies. Laboratory: Laboratory experiments with electrical breakdown of gas, liquids and solids, and simulation of fuse element operation. Independent Study: Review of industrial standards and applications, industrial case studies |
Learning outcomes are the key abilities and knowledge that will be assessed in this unit. They are listed according to the course goal supported by each. See Assessment Tab for details how each outcome is assessed.
(1) Maths/ Science Methods and Tools (Level 4)
8. Conduct analysis of industrial equipment.
(2) Engineering/ IT Specialisation (Level 4)
6. Demonstrate an understanding of high voltage engineering techniques.
7. Proficiency in performing calculations for the selection of cables, overhead lines and high-voltage equipment.
(4) Design (Level 4)
5. Demonstrate an understanding of design methods for overhead lines and underground cables at the level of planning, selection and construction.
(6) Communication and Inquiry/ Research (Level 2)
1. Identify the most suitable equipment for performing specific testing on high-voltage applications.
2. Write a report to communicate project work.
(8) Professional Effectiveness and Ethical Conduct (Level 2)
3. Demonstrate an understanding of the professional environment of engineering work in terms of testing, commissioning and assessment techniques for oil-immersed equipment such as transformers and switchgear.
4. Proficiency in assessing equipment in the laboratory by testing and then developing diagnostics.
| Assessment Methods: |
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| Assessment Description: |
Project: Project presentation Lab Report: Laboratory Final Exam: 3 hr formal exam at the end of semester |
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| Grading: |
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| Policies & Procedures: | See the policies page of the faculty website at http://sydney.edu.au/engineering/student-policies/ for information regarding university policies and local provisions and procedures within the Faculty of Engineering and Information Technologies. |
| Prescribed Text/s: |
Note: Students are expected to have a personal copy of all books listed.
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| Recommended Reference/s: |
Note: References are provided for guidance purposes only. Students are advised to consult these books in the university library. Purchase is not required.
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| Note on Resources: | Website for the unit. |
Note that the "Weeks" referred to in this Schedule are those of the official university semester calendar https://web.timetable.usyd.edu.au/calendar.jsp
| Week | Description |
| Week 1 | Introduction to high-voltage engineering, testing voltages, testing with power frequency voltages, testing with lightning impulse voltages, testing with switching impulses, testing with DC voltages, testing with very low-frequency voltages, generation of high voltages, DC, AC to DC conversion, cascade circuits, voltage multiplier with cascaded transformers, generation of high AC voltages |
| Week 2 | testing transformers, series resonant circuits, impulse voltages, impulse voltage generator circuits, multistage impulse generator circuits, |
| Week 3 | measurement of high voltages, peak voltage measurement by spark gaps, rod gaps, electrostatic voltmeters, ammeter in series with high ohmic resistors and high ohmic voltage dividers |
| Week 4 | voltage dividing systems and impulse voltage measurements, capacitor voltage dividers,electrical breakdown in gases, ionization and decay process, surge breakdown voltage breakdown in solid and liquid dielectrics, |
| Week 5 | Non-destructive insulation testing techniques, dynamic properties of dielectrics, in the time and frequency domain, insulation ageing basic partial discharge testing circuit, PD instruments |
| Week 6 | overvoltages, testing procedures and insulation coordination, the lightning mechanism, energy in lightning, switching surge test voltage characteristics, laboratory high-voltage testing procedures and statistical treatment of results |
| Week 7 | Insulation coordination, insulation level, Statistical approach to insulation coordination, design and testing of external insulation, contamination and the environment, flashover mechanism of polluted insulators under AC and DC, contamination testing, |
| Assessment Due: Mid-semester test | |
| Week 8 | Transformer condition monitoring and diagnostics, transformer testing, preventative maintenance |
| Week 9 | High-voltage switchgear, circuit configurations for high and medium voltage switchgear installations, SF6-insulated switchgear, Station layouts, surge arresters, busbar connections, |
| Week 10 | Overhead power lines, electrical parameters, lightning protection, earthing, loading and strength, sag and tension cancellations |
| Week 11 | Basics of underground cables, testing and maintenance methods, calculations and ampacity, types and selection |
| Week 12 | Cable fault locating methods, condition monitoring and diagnostics,electrical safety and professional practices in the field. |
| Week 13 | Revision |
| STUVAC (Week 14) | Week free from classes. |
| Exam Period | Assessment Due: Final Exam |
Course Relations
The following is a list of courses which have added this Unit to their structure.
Course Goals
This unit contributes to the achievement of the following course goals:
| Attribute | Practiced | Assessed |
| (1) Maths/ Science Methods and Tools (Level 4) | No | 11.67% |
| (2) Engineering/ IT Specialisation (Level 4) | No | 43.34% |
| (3) Problem Solving and Inventiveness (Level 4) | No | 0% |
| (4) Design (Level 4) | No | 5% |
| (5) Interdisciplinary, Inclusiveness, Influence (Level 4) | No | 0% |
| (6) Communication and Inquiry/ Research (Level 2) | No | 16.67% |
| (7) Project and Team Skills (Level 2) | No | 0% |
| (8) Professional Effectiveness and Ethical Conduct (Level 2) | No | 23.34% |
These goals are selected from Engineering & IT Graduate Outcomes Table 2018 which defines overall goals for courses where this unit is primarily offered. See Engineering & IT Graduate Outcomes Table 2018 for details of the attributes and levels to be developed in the course as a whole. Percentage figures alongside each course goal provide a rough indication of their relative weighting in assessment for this unit. Note that not all goals are necessarily part of assessment. Some may be more about practice activity. See Learning outcomes for details of what is assessed in relation to each goal and Assessment for details of how the outcome is assessed. See Attributes for details of practice provided for each goal.
