One of the most interesting paragraphs I have ever read

[DejanC]

So in my studies of electrical engineering, I found some interesting information. During my research I found some interesting perspective from one of the legendary electrical engineers Charles Prometeus Steinmetz. He was the father of the phasor analysis of AC signals we still use today. A genius when it came to all things electrical engineering during his era.

He made a statement about oscillating currents which he defines in the attached paper. Please refer to the image for what is a profound statement on reactive power in the context of oscillating currents. What I find fascinating is the uniqueness of this phenomenon compared to any AC phenomenon as he mentions. We are always taught reactive power can not have any impact on real power, but here it shows a NEGATIVE energy component of the REAL power! It affects the REAL part of the impedance! Amazing? Or well known?

How can this be? How is this not mentioned regularly?

[ejeffrey]

I don't know the difference between an "oscillating current circuit" and an "alternating current circuit".  Without more context it's hard to say what this is all about.