Course Details

Subject {L-T-P / C} : EE4103 : High Voltage Engineering and HVDC Transmission {3-0-0 / 3}
Subject Nature : Theory
Coordinator : Prof. Subrata Karmakar


Introduction: Design, planning and layout of H.V. laboratories Conduction and breakdown in Gaseous Dielectrics: Townsend's current growth equation, current growth in the presence of secondary processes, and streamer theory of breakdown in gases. Breakdown in non-uniform fields and corona. Conduction and Breakdown in Liquid dielectrics: Pure liquids and commercial liquids, conduction and breakdown in commercial liquids. Breakdown and pre-breakdown phenomena in solid Dielectrics: Intrinsic breakdown, electromechanical breakdown, thermal breakdown. Generation of High voltages: Generation of high D.C. voltage, high A.C. voltage, impulse voltage, impulse current, tripping and control of impulse generators. Measurement of high voltages and current: Measurement of high D.C., A.C. and impulse. Measurement of D.C. resistivity, dielectric constant and loss factor, partial discharge and Condition monitoring. H.V. Testing of Electrical Apparatus: Testing of insulators, bushings, isolators, circuit breakers, cables, transformers, and surge diverters.
HVDC Transmission System: DC Power Transmission Technology: Introduction, Comparison of AC and DC Transmission, Application. Analysis of HVDC Converters: Choice of converter configuration, Graetz circuit, Convertor bridge characteristics, Characteristics of a twelve pulse converters, Converter and HVDC system Control: Principles of DC Link control, Converter control characteristics, System control hierarchy Firing angle control, current and extinction angle control, Starting and stopping of DC link, Power Control. Smoothing Reactor and DC Line: Smoothing reactors, DC Line, transient over voltages in DC Line, Protection of DC line, DC breakers, Monopolar operation, Effects of proximity of AC and DC Transmission lines. Reactive Power Control: Reactive power requirements in steady state, Sources of reactive power, Static var systems, Reactive power control during transients. Harmonics and Filters: Generation of Harmonics, Design of AC Filters, DC Filters, Carrier frequency and RI noise. Multiterminal DC systems: Potential applications of MTDC systems, Types of MTDC systems, control and protection of MTDC systems, Control and protection of MTDC Systems study of MTDC systems.

Course Objectives

  1. To understand the basic concepts and properties of Solid, Liquid and Gaseous insulation.
  2. To understand the basic concept of High Voltage and Current generation and their measurements and testing.
  3. To understand the operation of HVDC conversion technology and power control techniques
  4. To identify factors affecting AC-DC transmission

Course Outcomes

1. Students will be able to understand the basic concepts and properties of Solid, Liquid and Gaseous insulation
2. Students will be able to understand the High Voltage and Current generation and measurements and high voltage testing techniques.
3. Students will be able to assess the degree of adequacy level in HVDC transmission.
4. Students can analyze problem related to HVAC and HVDC transmission system.
5. Students will understand the operation of HVDC conversion technology and power control techniques.

Essential Reading

  1. M. S. Naidu and V. Kamaraju, High Voltage Engineering, Tata McGraw Hill , 1995
  2. E.W. Kimbark, Direct Current Transmission-vol.1, Wiley Inter science, New York , 1971

Supplementary Reading

  1. J. Kuffel and W. S. Zaengl, High Voltage Engineering: Fundamentals, Newnes , 2000
  2. J. Arrillaga, HVDC Transmission, IET, peter pereginver Ltd., London, U.K , 1998