This course focuses on the high-voltage technology used in electric power apparatuses and electric machinery. The gas breakdown, discharge initiation, electric conduction and breakdown of liquid/solid/composite materials are shown. The generation of DC, AC, pulsed high-voltage and large current, measurement techniques, and surge voltage propagation and protection will be explained. The topics include electric power equipment (bushings, cables, switchgears, and arresters), high-voltage and large-current test equipment, accelerators, electric precipitators, ozone generators, and other applications.
By the end of this course, students will be able to: 1) understand the basic theory of high-voltage engineering, 2) explain the operating principles of high-voltage and large-power apparatuses or other electric machinery, 3) understand measurement and evaluation methods for high voltage or large current, and 4) compute the basic breakdown phenomena with MATLAB® and analyze the transient circuit phenomena in high-voltage and large-power apparatuses using LTspice®.
Corresponding educational goals are:
(1) Specialist skills Fundamental specialist skills
(4) Applied skills (inquisitive thinking and/or problem-finding skills) Organization and analysis
(7) Skills acquiring a wide range of expertise, and expanding it into more advanced and other specialized areas
high voltage, large current, insulator, dielectric breakdown, sparking voltage, impulse voltage, voltage divider, bushing, gas-insulated switchgear, arrester, electric precipitator, ozone generator.
✔ Specialist skills | Intercultural skills | Communication skills | ✔ Critical thinking skills | Practical and/or problem-solving skills |
The class proceeds with the course text book. A high-voltage lab tour, numerical simulations of transient circuits, and exercise problems related to the lecture will be provided. A summary of the topics and learning outcomes of each class will also be given. Handbook® is used for preparation, review purposes, and active learning.
Course schedule | Required learning | |
---|---|---|
Class 1 | Overview, electrostatic field (basic properties of an electrostatic field, electrode arrangement and electric field strength, numerical simulation method), Numerical analysis of electric circuit, Demonstration of breakdown phenomena. | Peruse chapter 1 of the course textbook. Understand the calculation method with LTspice for circuit analysis. |
Class 2 | Dielectric properties in high-electric field (Gas breakdown) | Peruse section 2.1. |
Class 3 | Dielectric properties in high-electric field (Gas and liquid breakdown) | Peruse sections 2.1 and 2.2. |
Class 4 | Dielectric properties in high-electric field (Solid or composite material breakdown) | Peruse sections 2.3 and 2.4. Calculate the electric field strength within a void. |
Class 5 | High-voltage or large-current generation (AC high-voltage, impulse voltage, DC high-voltage). Tour of the high-voltage lab. Demonstration of electrical breakdown of atmospheric air. | Peruse sections 3.1–3.4. Understand real high-voltage apparatus. |
Class 6 | High-voltage or large-current generation (large AC current, large DC current, large pulsed current by capacitor discharge). | Peruse sections 3.6–3.9. Analysis of high-voltage or large-current circuit using LTspice. |
Class 7 | Measurements of high voltage or large current (high DC voltage, high AC voltage). | Peruse sections 4.1–4.3. |
Class 8 | Review and test level of understanding of classes 1–7. | Self-evaluate achievement. |
Class 9 | Measurements of high-voltage or large current (high impulse voltage, large current, partial discharge, discharge phenomena). | Peruse sections 4.4–4.7. Transient circuit analysis with LTspice. |
Class 10 | Overview of high-voltage apparatuses (bushing, insulator, high-voltage power cable, rotating equipment, gas insulated switchgear). | Peruse sections 5.1–5.6. |
Class 11 | Overview of high-voltage apparatuses (vacuum interrupter, arrestor, transformer, capacitor). | Peruse sections 5.7–5.10. |
Class 12 | High-voltage surge generation, propagation, and protection in power system (over voltage, lightning overvoltage, protection). Tour of the high-voltage electrical facilities. | Peruse sections 6.1–6.3. |
Class 13 | High-voltage breakdown test-1. | Peruse sections 7.1–7.4 |
Class 14 | High-voltage breakdown test-2. Applications of high-voltage engineering (accelerator, electron microscope, electric discharge machine). | Peruse sections 7.5–7.10. |
Class 15 | Applications of high-voltage engineering (ozone generator, hybrid DC circuit breaker, electric precipitator). | Peruse sections 8.1–8.8. |
Kawamura, Kawano, Yanabu, “High voltage engineering”, IEE Japan, ISBN: 978-4886862372. (Japanese)
R. Hanaoka, “High voltage engineering”, Morikita Publishing Co., Ltd., ISBN: 978-4627742512 (Japanese), O. Yamamoto, S. Hamada, “High voltage engineering”, Ohmsha, ISBN: 978-4274214448 (Japanese).
Students' course scores are based on midterm exams (50%) and final exams (50%).
Students must have successfully completed the following classes or have equivalent knowledge.
Electricity and Magnetism I(EEE.E201), Electricity and Magnetism II(EEE.E202), Electric Circuits I(EEE.C201), Electric Circuits II(EEE.C202)