What exactly is transmission line harmonics?
Say for the purposes of this demonstration I have a brand new install of a very large set of solid state electronics that when under load will draw 2 MW from the transmission grid with almost instantaneous notice (no battery bank).
Let’s further say that I’ve had a phone call from the on site grid engineers who’ve told me I’ve not only started to make the lights in the building dim but engineers a few miles away have noticed a harmonic phenomena in the electrical grid. What on earth does this mean and is it really a harmonic?