Effect of Harmonics on electrical systemDefines harmonic as a sinusoidal component of a periodic wave or quantity (for example voltage or current) having a frequency that is an integral multiple of the fundamental frequency.For example on 60Hz supply, the 3rd harmonic is 3 x 60Hz (=180Hz); the 5th harmonic is 5 x 60Hz (=300Hz) and so on....When...

Speed control methods of three phase Induction Motor Detailed explanation:A three phase induction motor is  a constant speed motor as dc  shunt motor.  But the speed of d.c.  shunt motor can be changed smoothly just by using rheostats. This maintains the speed regulation and efficiency of dc. shunt motor.  But in case of...

How three phase induction motor works?Fig.Induction motor Three-phase squirrel-cage asynchronous motors are widely used in industrial drives because they are rugged, reliable and economical. Single-phase induction motors are used extensively for smaller loads, such as household appliances like fansAn electric motor converts electrical...