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| EEE4013 | High Voltage Techniques | 3+0+0 | ECTS:5 | | Year / Semester | Fall Semester | | Level of Course | First Cycle | | Status | Compulsory | | Department | DEPARTMENT of ELECTRICAL and ELECTRONICS ENGINEERING | | Prerequisites and co-requisites | None | | Mode of Delivery | Face to face | | Contact Hours | 14 weeks - 3 hours of lectures per week | | Lecturer | Doç. Dr. Emre ÖZKOP | | Co-Lecturer | ASSOC. PROF. DR. Emre ÖZKOP, | | Language of instruction | | | Professional practise ( internship ) | None | | | | The aim of the course: | | A review of Electric and magnetic fields; Generation of high voltages; Electrostatic fields and field stress control; Electrical breakdown in gasses; Breakdown in solid and liquid bielectrics; Non-destructive insulation test techniques; Overvoltages, testing procedures and insulation coordination; Design and testing of external insulation. High voltage circuit elements; High voltage transformers, circuit breakers, surge arresters. Measurements of high voltages; Grounding in high voltage transmission systems. |
| Learning Outcomes | CTPO | TOA | | Upon successful completion of the course, the students will be able to : | | | | LO - 1 : | know why we use high voltage (HV), HV types, and HV applications | 7,8,10 | 1 | | LO - 2 : | compute electrostatic fields for all type electrode systems
| 1,3,5,12 | 1 | | LO - 3 : | design electrode system and HV device
| 1,3,6,10 | 1 | | LO - 4 : | understand discharge phenomena, breakdown in gases, liquids and solids dielectrics | 6,7,10 | 1 | | LO - 5 : | know HV parameters, generation and measurement principles, and methods | 2,5,12 | 1 | | CTPO : Contribution to programme outcomes, TOA :Type of assessment (1: written exam, 2: Oral exam, 3: Homework assignment, 4: Laboratory exercise/exam, 5: Seminar / presentation, 6: Term paper), LO : Learning Outcome | | |
| Introduction: Historical evolution of high voltage technology. Elements of high voltage system. Negative side of Alternating and Direct current power transmission. Determination of electric fields: Fundamentals, analytical field calculation. Calculation from Maxwell?s equation charge simulation method. Direct integration of Laplace?s equation. Conform transformation. Basic electrot systems. Breakdown of gases: Charge carriers in gases. Properties of different charge carriers. Non-self-sustaining discharge. Collision ionization by electrons. Self- sustaining discharge. Townsend mechanism in a strongly in homogeneous field corona effect. Breakdown phenomena in liquids: Mineral and Synthetic oils. Oil-impregnated paper. Breakdown of solid insulating materials: Intrinsic breakdown. Thermal breakdown natural and synthetic insulation materials used in high voltage technics. High voltage network elements: Insulators. Types of high voltage insulators material and their properties used in internal insulation of the insulators. Types of power cables. Conductors, Current switches. Circuit breaks. |
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| Course Syllabus | | Week | Subject | Related Notes / Files | | Week 1 | Introduction. Basic concepts of electrostatic field, Laplace's and Poisson's equations.
| | | Week 2 | Planar electrode systems. Concentric spherical electrode systems.
| | | Week 3 | Coaxial cylindrical electrode systems.
| | | Week 4 | Non-coaxial cylindrical electrode systems. Approximate calculation of max. electric field.
| | | Week 5 | Electrode systems with multi-dielectrics: planar and coaxial cylindrical systems.
| | | Week 6 | Uniform stress and high voltage cable and bushing applications. Conformal mapping.
| | | Week 7 | Numerical methods for electrostatic field calculations.
| | | Week 8 | Introduction to discharge phenomena. Ionization. Townsend theory. Paschen's law.
| | | Week 9 | Midterm exam | | | Week 10 | Breakdown mechanism in vacuum. Streamer theory. Corona discharges.
| | | Week 11 | Surface discharges. Lightning phenomenon. Breakdown in liquid dielectrics.
| | | Week 12 | Breakdown in solid dielectrics: breakdown theories, affecting parameters. Partial discharges.
| | | Week 13 | Breakdown in solid dielectrics: breakdown theories, affecting parameters. Partial discharges.
| | | Week 14 | A basic knowledge origin of overvoltages and protection against overvoltages.
| | | Week 15 | Yüksek gerilimde ölçme. | | | Week 16 | Final exam. | | | |
| 1 | Lecture notes, power point presentations | | | |
| 1 | High Voltage by T.J. Gallagher, John Wiley Sons, 1983 | | | 2 | High Voltage Engineering Fundamentals by E. Kuffel,W.S. Zaengl, Pergamon Press, 1984 | | | 3 | High Voltage Engineering : Fundamentals by E. Kuffel, Newnes, 2000 | | | 4 | Electrical Power Transmission Systems by J.R. Eatan, Printice Hall, 1972 | | | 5 | Power Transmission and Distribution by P.J. Freeman, 1983 | | | 6 | Yüksek Gerilim Tekniğinin Temelleri by Prof. Dr. Sefa AKPINAR, KTÜ Basımevi, 1997. | | | |
| Method of Assessment | | Type of assessment | Week No | Date | Duration (hours) | Weight (%) | | Mid-term exam | 9 | | 1,5 | 50 | | End-of-term exam | 16 | | 1,5 | 50 | | |
| Student Work Load and its Distribution | | Type of work | Duration (hours pw) | No of weeks / Number of activity | Hours in total per term | | Yüz yüze eğitim | 3 | 14 | 42 | | Sınıf dışı çalışma | 2 | 14 | 28 | | Laboratuar çalışması | 0 | 0 | 0 | | Arasınav için hazırlık | 2 | 8 | 16 | | Arasınav | 2 | 1 | 2 | | Uygulama | 0 | 0 | 0 | | Klinik Uygulama | 0 | 0 | 0 | | Ödev | 0 | 0 | 0 | | Proje | 0 | 0 | 0 | | Kısa sınav | 0 | 0 | 0 | | Dönem sonu sınavı için hazırlık | 3 | 7 | 21 | | Dönem sonu sınavı | 2 | 1 | 2 | | Diğer 1 | 0 | 0 | 0 | | Diğer 2 | 0 | 0 | 0 | | Total work load | | | 111 |
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