| What are harmonics?
Harmonics are undesirable sinusoidal voltages or currents whose frequencies are integer multiples of the fundamental supply frequency (usually 50hz or 60hz); for example a 5th harmonic is at 250 Hz (i.e. 5 times fundamental frequency, 7th harmonic is 350 Hz, and so on based on a 50 Hz fundamental).
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What are the effects of harmonics ?
The damage and/or disruption to plant and equipment caused by harmonics can be significant; some of the more widely acknowledged effects include......
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Where are harmonics usually encountered ?
The sectors where harmonics can be encountered can be summarised as follows.....
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