Utilization of Electrical Energy Notes JNTU | UEE Notes JNTU of Total Complete Notes
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UNIT – I ELECTRIC DRIVES
Type of electric drives, choice of motor, starting and running characteristics, speed control, temperature rise, particular applications of electric drives, types of industrial loads, continuous, intermittent and variable loads, load equalization.
UNIT – II ELECTRIC HEATING
Advantages and methods of electric heating, resistance heating induction heating and dielectric heating.
UNIT – III ELECTRIC WELDING
Electric welding, resistance and arc welding, electric welding equipment, comparison between A.C. and D.C. Welding
UNIT – IV ILLUMINATION FUNDAMENTALS
Introduction, terms used in illumination, laws of illumination, polar curves, photometry, integrating sphere, sources of light.
UNIT – V VARIOUS ILLUMINATION METHODS
Discharge lamps, MV and SV lamps – comparison between tungsten filament lamps and fluorescent tubes, Basic principles of light control, Types and design of lighting and flood lighting.
UNIT – VI ELECTRIC TRACTION – I
System of electric traction and track electrification. Review of existing electric traction systems in India. Special features of traction motor, methods of electric braking-plugging rheostatic braking and regenerative braking.
UNIT – VII ELECTRIC TRACTION – II
Mechanics of train movement. Speed-time curves for different services – trapezoidal and quadrilateral speed time curves.
UNIT – VIII ELECTRIC TRACTION-III
Calculations of tractive effort, power, specific energy consumption for given run, effect of varying acceleration and braking retardation, adhesive weight and braking retardation adhesive weight and coefficient of adhesion.