Question { Airtel, 17335 }

What is harmonics. How does it get generated and means to
arrest harmonics

Answer

Harmonics are integral multiples of some fundamental
frequency ,if the fundamental frequency is f, the harmonics
have frequencies 2f, 3f, 4f, . . . etc., when added
together, result in a distorted waveform, It generates due
to improper switching action, they disturbance the Grid and
equipments.

filters generates Harmonics of opposite polarity to system
Harmonics to nullify the effects,We use filters to get a
stable system.