OBJECTIVE: On completing the course, the students will be able to design illumination systems, traction systems, make suitable choice of eletronic drives, refrigeration and air-conditioning systems for given applications.
Production of light - lighting calculations - determination of MHCP and MSCP - Polar curves of different types of sources - Roasseau's construction - photometers - interior and exterior illumination systems - lighting schemes - Design of lighting schemes - factory lighting - flood lighting - electric lamps - gaseous discharge lamps - high pressure and low pressure neon signs - high frequency , low pressure discharge tubes.
Resistance, inductance and Arc Furnaces - Construction and fields of application - control equipment, efficiency and losses - high frequency dielectric heating, resistance - welding equipment - mechanical, thyratron, current and energy actuated control devices - characateristics of carbon and metallic arc welding - butt welding - spot welding.
Electric drives - Group drive - Individual drive - selection of motors - starting characteristics - Running characteristics - mechanical features of electric motors - Electric drives for general factory, textile mills - printing press, mines, hoists , lifts, conveyers, pumps, blowers, and ship propulsion - choice of drives - calculation of power requirement - power factor improvement.
Traction system - series, parallel control of D.C. motors, open circuited, shunt and bridge transition - tractive effort calculations - electric braking - control wire - A.C. traction - recent trend in electric traction.
Control of temperature - protection of motors - basic wiring diagram - simple heat load and motor calculations. Air-conditioning - function of complete air conditioning system - type of compressor motor and fan motor-wiring diagram for a typical air conditioning unit - estimation of tonnage capacity and motor power.
