wirenut1980
Senior Member
- Location
- Plainfield, IN
Thanks Charlie for that explanation. I believe that the idea of harmonics is a mathematical expression to give meaning and quantification to the very real effects of non-linear loads.
I can see that some of the peaks of the tripplen harmonics will coincide resulting in a magnitude that is 3 times that of each phase harmonics current magnitude, but I am still having difficulty seeing how each phase tripplen harmonic current being in sync with each other will trap them in the delta windings and not realease/travel further up the primary lines.
Jim, I think your explanation does explain why, in a wye (no pun intended) primary the harmonic currents have no choice but to dump into the primary phase conductors, however in a delta primary, using your analogy, it seems that you would have a current divider, with some harmonic current remaining in the delta windings and some harmonic current dumping into the phase conductors.
I can see that some of the peaks of the tripplen harmonics will coincide resulting in a magnitude that is 3 times that of each phase harmonics current magnitude, but I am still having difficulty seeing how each phase tripplen harmonic current being in sync with each other will trap them in the delta windings and not realease/travel further up the primary lines.
Jim, I think your explanation does explain why, in a wye (no pun intended) primary the harmonic currents have no choice but to dump into the primary phase conductors, however in a delta primary, using your analogy, it seems that you would have a current divider, with some harmonic current remaining in the delta windings and some harmonic current dumping into the phase conductors.