Electric Drives:

Individual, group and collective drives; review of starting and running characteristics of electric motors, thermal rating, duty cycle, heating and cooling time constant of motors; dynamic performance and Mechanics of motor-load systems; load fluctuation and load equalization; speed control and speed-time relation of motors; electric breaking; energy consumption; selection of motors for specific services.

 Power Electronics:

 Basic characteristics, specification and ratings of thyristors, phase control; thyrister modules and trigger pulse circuits, current limiting device, converters and inverters, choppers and cyco-converters, speed control of d.c and a.c. motors using thyristors, frequency control of inverters and converters.

 


Level of Study: 500 Level