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.
|Intercultural skills||Communication skills||Specialist 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)