UNIT- I: INTRODUCTION TO HIGH VOLATGE ENGINEERING
Electric Field Stresses, Gas / Vacuum as Insulator, Liquid Dielectrics, Solids and Composites,
Estimation and Control of Electric Stress, Numerical methods for electric field computation, Surge
voltages, their distribution and control, Applications of insulating materials in transformers,
rotating machines, circuit breakers, cable power capacitors and bushings.
UNIT- II: BREAK DOWN IN DIELECTRIC MATERIALS
Gases as insulating media, collision process, Ionization process, Townsend’s criteria of
breakdown in gases, Paschen’s law. Liquid as Insulator, pure and commercial liquids, breakdown
in pure and commercial liquids. Intrinsic breakdown, electromechanical breakdown, thermal
breakdown, breakdown of solid dielectrics in practice, Breakdown in composite dielectrics, solid
dielectrics used in practice.