picotube
Member level 5
I attended a class on power harmonic couple of years ago. The presenter shared one of his experience, which I think it's interesting, that he gained during his visit to a Canadian university (if my memory is not corrupted yet ). In the university, a guy (probably a professor) showed him some interesting phenomenon regarding the measurement of even and odd harmonic current using a current clamp (hall effect type, non-custom-made, i.e. available in the market). When the current clamp was placed around a conductor/wire that carried EVEN harmonic current ONLY, he could not 'remove' the clamp from the wire because the jaws of the clamp could not be opened. He told us that it's like a strong 'magnetic force' that hold the jaws together. This 'strange' phenomenon did not happen when the current clamp was installed around a wire that carried ODD harmonic current.
Has anyone ever heard about this before? If YES, would you please share your experience or provide links to those sites?
Thank you very much.
Has anyone ever heard about this before? If YES, would you please share your experience or provide links to those sites?
Thank you very much.