Topic

Number of Lectures

Module1:Electric Field Strength (Electric Stress)

Levels of high voltage,Votage Levels,Electrical Insulation and Dielectrics

1

Importanceof Electric Field Intensity in the Dielectrics

1

Types of Electric Fields and Degree of Uniformity of Fields, Utilization of Dielectric Properties and Stress Control

2

Module2:Gaseous Dielectrics

Properties of atmospheric air, SF6 and vacuum, Relate dionization Process, Properties in vacuum, Related ionization Process

2

Development of Electron Avalanche

1

Breakdown Mechanisms, Townsend'sMechanism, BreakdownMechanisms, StreamerMechanism

2

Breakdownin Uniform Fields(Paschen'sLaw)

1

Breakdown of gaseous dielectrics in Weakly Non-uniform and the limiting value of η

1

Development of PB in Extremely Non-UniformFields, Breakdown charactersistics in air with stable PB(corona)

2

Module3:Properties of Liquid and Solid Dielectrics

Classification and Properties of Liquid Dielectrics, Classification and Properties of Solid Dielectrics

2

Permittivity and Polarization in Dielectrics

1

1

Partial Breakdown Phenomenon in Dielectrics

1

Partial Breakdown Phenomenon on the Surfaces of Soild and Liquid Dielectrics and degradation due to PB

1

Module4:Breakdown in Liquid and Solid Dielectrics

Definition and Measurements of Intrinsic and Practical Breakdown strengths of Liquid dielectrics

1

Measurement of Intrinsic Breakdown in solid dielectrics

1

Thermal and other Breakdown Mechanisms in extremely non-uniform fields

1

Comparison of the development of breakdown in extremely and weakly non-uniform fields and the requirement of time for breakdown in solid dielectrics

1

Module5:Generation of High Test Voltages

Methods of generation of Power Frequency hightest voltage, Transformers in Cascade, Resonance Transformers

2

Generation of high DCvoltage, Voltage Multiplier Circuits and Ripple Minimization

1

Sources of overvoltages and Standard Lightning and Switching wave shapes

1

Impulse Voltage Generator, Analysis of Single Stage Circuit, Multistage Impulse Generator and their Triggering Methods

2

Module6:Measurement of High Voltage

Peak High Voltage measurement techniques

1

Spheregap; Construction; Effects of earthed objects and atmospheric conditions

1

Electrostatic Voltmeters,Principle and Construction

1

Potential Dividers,their types and applications

1

Module7:Non-destructive High Voltage Testing and Quality Control

Measurable properties of dielectrics

1

Measurement of Dielectric properties with Schering Bridge and Mega ohm meter

1

Partial Breakdown(PB) Measurement Techniques in Dielectrics/Equipment

1

Module8:Insulation Coordination and Over Voltage sin Power Systems

Over Voltages and Basic Insulation Level Design Systems

1