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Answer Posted / harshit shukla
-harmonics are unwanted frequencies which distort current and
voltage wave forms and also increase I2R losses in line.
-In transmission line harmonics are produced due to transient
effect.They are also produced during switching ON and OFF of
transformer(magnetic coupling device)
-It is also noticed that in line when current peak and
harmonic peak occur at the same time,I2R loss become maximun.
-harmonics can be reduced by mounting filters near
transformers or generators.
-In power electronics devices it causes fluctuation.
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