Disturbances caused by harmonics
Harmonics flowing in distribution networks downgrade the quality of electrical power.
This can have a number of negative effects:
Overloads on distribution networks due to the increase in rms current
Overloads in neutral conductors due to the cumulative increase in third-order harmonics created by single-phase loads
Overloads, vibration and premature ageing of generators, transformers and motors as well as increased transformer hum
Overloads and premature ageing of power-factor correction capacitors
Distortion of the supply voltage that can disturb sensitive loads
Disturbances in communication networks and on telephone lines
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