10-06-2017, 06:47 AM
high voltage engineering viva questions pdf
The high voltage engineering laboratory was formally started in 1946. In 1963 it became a separate department and in 2006 it once again became a part of the Electrical Engineering department. The department is a pioneer in high voltage research and this research group played a major role in the formation of Central Power Research Institute (CPRI) which is a major national laboratory now. The high voltage laboratory, when it was started, was a major national facility and even today it offers some unique testing facilities for manufacturers of insulation systems.
The current research in this area focuses on topics such as External random processes in insulation; polymeric outdoor insulators; pollution and flashover studies; Thermal problems in electrical insulation; partial discharge detection techniques; nano dielectrics; tracking and erosion, high power electromagnetics, computational EMC and pulsed power systems for HPM, NEMP, UWB and laser systems. Diagnostic testing and condition monitoring of power equipment; Overvoltage phenomena in power apparatus and systems; lightning; switching and very fast transient overvoltages; lightning protection systems; fault diagnosis; HVDC cables and GIS; super conducting magnets and cables; EHV/UHV power transmission; corona, radio interference; line and substation insulation design; Electromagnetic field theory; electrostatic fields; transient fields in composite lossy dielectrics and machine winding; Interference and compatibility in high voltage substations; Application of high voltage engineering to air pollution control; high voltage/current pulse generators and probes for industrial applications; surge protection devices.