HIGH VOLTAGE ENGINEERING: A NPTEL Course

Prof. Ravindra Arora

Otro excelente curso de la NPTEL. Se trata de presentaciones en linea en formato htm.

Prof. Ravindra Arora

Department of Electrical Engineering Indian Institute of Technology, Kanpur

E-mail: rarora@iitk.ac.in  
Telephone: +91-512-2597665 ( Work )
+91-512-2598611 / 2590339 ( Res )
Fax : +91-512-2590063 / 2590265 /2590007

                                                      Topic                                                                                                                           

I Electric Field Strength (Electric Stress)           
Lecture 1 : An introductory lecture  
Lecture 2 : Importance of Electric Field Intensity in the Dielectrics  
Lecture 3 : Types of Electric Fields and Degree of Uniformity of Fields
Lecture 4 : Utilization of Dielectric Properties and Stress Control

II Gaseous Dielectrics         

Lecture 5 : Properties of atmospheric air, SF6 and vacuum, Related ionization Process    
Lecture 6 : Properties in vacuum, Related ionization Process 
Lecture 7 : Development of Electron Avalanche 
Lecture 8 : Breakdown Mechanisms, Townsend's Mechanism    
Lecture 9 : Breakdown Mechanisms, Streamer Mechanism    
Lecture 10 : Breakdown in Uniform Fields (Paschen's Law)   
Lecture 11 : Breakdown of gaseous dielectrics in Weakly Non-uniform and the limiting value of η   
Lecture 12 : Development of PB in Extremely Non-Uniform Fields   
Lecture 13 : Breakdown charactersistics in air with stable PB (corona)   

III Properties of Liquid and Solid Dielectrics    

Lecture 14 : Classification and  Properties of Liquid Dielectrics  
Lecture 15 : Classification and  Properties of Solid Dielectrics   
Lecture 16 : Permittivity and Polarization in Dielectrics   
Lecture 17 : Insulation Resistance, Conductivity and Losses in Dielectrics  
Lecture 18 : Partial Breakdown Phenomenon in Dielectrics    
Lecture 19 : Partial Breakdown Phenomenon on the Surfaces of Soild and Liquid Dielectrics and degradation due to PB    

IV Breakdown in Liquid and Solid Dielectrics    

Lecture 20 : Definition and Measurements of Intrinsic and Practical Breakdown strengths of Liquid dielectrics  
Lecture 21 : Measurement of Intrinsic Breakdown in solid dielectrics
Lecture 22 : Thermal and other Breakdown Mechanisms in extremely non-uniform fields
Lecture 23 : Comparison of the development of breakdown in extremely and weakly non-uniform fields and the requirement of time for breakdown in solid dielectrics
  
V Generation of High Test Voltages        

Lecture 24 : Methods of generation of Power Frequency high test voltage, Transformers in Cascade
Lecture 25 : Resonance Transformers   
Lecture 26 : Generation of high DC voltage, Voltage Multiplier Circuits and Ripple Minimization  
Lecture 27 : Sources of over voltages and Standard Lightning and Switching wave shapes  
Lecture 28 : Impulse Voltage Generator, Analysis of Single Stage Circuit   
Lecture 29 : Multistage Impulse Generator and their Triggering Methods     
  
VI Measurement of High Voltage         
  
Lecture 30 : Peak High Voltage measurement techniques      
Lecture 31 : Sphere gap; Construction; Effects of earthed objects and atmospheric conditions     
Lecture 32 : Electrostatic Voltmeters, Principle and Construction      
Lecture 33 : Potential Dividers, their types and applications       

VII Non-destructive High Voltage Testing and Quality Control    
Lecture 34 : Measurable properties of dielectrics     
Lecture 35 : Measurement of Dielectric properties with Schering Bridge and Megaohm meter       
Lecture 36 : Parital Breakdown (PB)  Measurement Techniques in Dielectrics/ Equipment       
  
VIII Insulation Coordination and Over Voltages in Power Systems    
Lecture 37 : Over Voltages and Basic Insulation Level Design Systems

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