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Download EE426 Course title: High Voltage Engineering
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University of Management and Technology Course Outline Course code: EE426 Course title: High Voltage Engineering Program BSEE Credit Hours 3 Duration One Semester Prerequisites -- Resource Person Muhammad Haris Counseling Timing Monday (11:00-1:00) (Office # 7, Hall # 510, SEN Building ) Contact Ext: 3663 [email protected] Chairman/Director signature…………………………………. Dean’s signature…………………………… Date…………………………………………. Course Outline Page 1 Introduction: The course is an advanced course on high-voltage technology and electrical insulating materials. Learning Objective: The course contains the basic theories and the most important experimental methods of high voltage engineering. Generation of high voltages. Cockroft-Walton cascade rectifier. Transformer cascade. Impulse voltages. High voltage dividers. High voltage test technique. Electrical breakdown strength of gaseous, liquid and solid insulation. Dielectric properties of electrical insulation. Complex permittivity and dielectric response functions. Insulation diagnostics. Dielectric spectroscopy. Partial discharges. Learning Outcomes: When the students have passed the course, they shall be able to describe the principles behind generating high DC-, AC- and impulse voltages develop equivalent circuit models of the different high voltage generators perform a dynamic response analysis of high voltage measurement systems approximately judge the breakdown strength of contaminated gases, liquids and solids. describe the principles for measurement of capacitance and dielectric loss discuss ageing of electrical insulation from measurements of complex permittivity compute the complex permittivity from the dielectric response function and vice versa. discuss the measurement principles behind partial discharges compute phase resolved partial discharge patterns from simple models Teaching Methodology: Lectures will be used to describe and develop the concepts stated above. Group tasks will be given to enhance interactive learning. Industrial visits will be arranged to further strengthen the basic concepts and to increase practical exposure. Course Outline Page 2 Grade Evaluation Criteria Following is the criteria for the distribution of marks to evaluate final grade in the semester. Marks Evaluation Marks in percentage Sessional (Quizzes + Assignments) 25% Mid Term 25% Final exam 50% Total 100% Recommended Text Book: High Voltage Engineering, 2nd edition. By E. Kuffel, W.S. Zaengl, amd J. Kuffel Reference Book: High voltage Engineering, 2nd edition, By M. S. Naidu, and V. Kamaraju Course Outline Page 3 Calendar of Course contents to be covered during semester Course code: EE426 Course title: High Voltage Engineering Lectures Topics 03 Introduction Generation of transmission of electric energy, Voltage stresses, Testing voltages Generation of High voltages Direct Voltages, AC to DC conversion, Electrostatic generators, Alternating Voltages, Testing transformers, series resonant circuits, impulse voltages, impulse voltage generator circuits, operation, design and construction of impulse generators Measurement of high Voltages Peak voltage measurement by spark gaps, sphere gaps, reference measuring systems, uniform field gaps, rod gaps, electrostatic voltmeters, ammeter in series with high ohmic resistors and high ohmic resistor voltage dividers, generating voltmeters and field sensors, The measurement of peak voltages, The ChubbFortescue method, voltage dividers and passive rectifier circuits, active peak reading circuits, high voltage capacitors for measuring circuits, 06 07 Textbook (TB) / Reference Readings(RB) Ch # 1 of TB Ch # 2 of TB Ch # 3 of TB Mid Term Exam 05 03 04 02 Electric Breakdown in gases Classical gas laws, Ionization and decay processes, cathode processes-secondary effects, transition from non-self-sustained discharges to breakdown, the streamer or ‘Kanal’ mechanism of spark, Paschen’s law, Penning effect, The breakdown field strength, effect of electron attachment on the breakdown, Partial breakdown, corona discharges, Polarity effect, surge breakdown voltage Breakdown in solids and liquid dielectrics Breakdown in Solids, Breakdown in liquids Non-destructive insulation test techniques Dynamic properties of dielectrics, Dielectric loss and capacitance measurements, Partial-Discharge measurements Overvoltages, testing procedures and insulation coordination The lightning mechanism, Switching surge test voltage characteristics, Laboratory high voltage testing procedures and statistical treatment of results Chap # 05 of TB Chap # 06 of TB Chap # 07 of TB Chap # 08 of TB End Term Exam (Comprehensive) Course Outline Page 4