Current Research

The department is pursuing advanced and fundamental research towards understanding and improving the overall design, and operational reliability of high voltage power apparatus and transmission systems, and application of high voltage to allied areas. Imparting specialised training in the above areas is another important activity. Major research interests are:

Breakdown phenomena in different insulation media, arc studies in SF6 circuit breakers, pollution and flashover studies on external insulation and studies in gas-insulated systems.

Insulating material characterisation and its aging, partial discharge detection techniques data analysis, interpretation, multifactor stress analysis and application of pattern recognition.

Overvoltage phenomena in power apparatus and systems, lightning, switching and very fast transient overvoltages, generation and measuring techniques, transient voltage distribution, overvoltage control, lightning protection systems and associated computation, fault diagnosis and application of signal processing.

EHV/UHV power transmission, problems of corona loss, radio interference, and audio noise, line and substation insulation design.
Electromagnetic field theory, electrostatic field theory in complex geometries and space charge phenomenon, transient field in composite lossy dielectrics and machine windings, field associated with lightning and lightning induced voltages, PD induced UHF/VHF fields in GIS, Electromagnetic Interference and compatibility in high voltage substations.

Diagnostic Testing and Condition Monitoring of power transformers using Dissolved Gas Analysis, Degree of Polymerisation, hottest spot and top-oil temperature prediction, Transfer Function method etc.

Application of High Voltage Engineering to air pollution control, advanced electrical discharge techniques for cleaning exhausts of thermal power plants and automobiles, simulation of plasma induced processes, high voltage or current pulse generators and probes for various industrial applications, development of surge protection devices and pulsed power engineering.