- #1
Adder_Noir
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I have recently come across the subject of harmonics in my new job and I am a little puzzled about them. I understand that they are produced by devices which draw current in a non-linear fashion and that they can travel throughout a network causing items to overheat and such like.
BUT...
I am a little unsure as to how they affect the voltage characteristics of the system they are present in. As I understand it they distort the current profile and thus distort the voltage profile. I also understand that harmonic current cannot be used as useful power and is termed 'dirty power'. I was told that they can cause voltage drops in other parts of the network. So my question is why do they cause such voltage drops? I am guessing it is because the power supply is having to power these useless harmonics Any help appreciated
BUT...
I am a little unsure as to how they affect the voltage characteristics of the system they are present in. As I understand it they distort the current profile and thus distort the voltage profile. I also understand that harmonic current cannot be used as useful power and is termed 'dirty power'. I was told that they can cause voltage drops in other parts of the network. So my question is why do they cause such voltage drops? I am guessing it is because the power supply is having to power these useless harmonics Any help appreciated