The discussion revolves around the comparative analysis of copper losses in AC (Alternating Current) versus DC (Direct Current) power transmission. Participants explore the implications of the skin effect, voltage levels, and the efficiency of power distribution systems, focusing on theoretical and practical aspects of electrical engineering.
Participants express differing views on the comparative losses of AC and DC, with no consensus reached on the overall advantages of one over the other. The discussion remains unresolved regarding the implications of the skin effect and the conditions under which each type of current may be more efficient.
Participants reference various assumptions about voltage levels, power transmission methods, and historical developments in electrical engineering without fully resolving the implications of these factors on copper losses.
Buggsy GC said:Hi there everyone, I'm doing some study on electronics and the section on the advantages of A/C over DC mentioned that AC has less copper loss (I^2 x R), But to me this seems contradictory to the skin effect. Could someone please tell me why AC has less copper loss.
This is probably in reference to the development of the area-wide power distribution system, in an era when the choice was basically between DC all-the-way or AC all-the-way. Transformers enabled the efficient transmission of AC at high tension followed by a step-down to consumer voltages, whereas there was no equivalent available for efficiently stepping down DC at the power levels involved.Buggsy GC said:Hi there everyone, I'm doing some study on electronics and the section on the advantages of A/C over DC mentioned that AC has less copper loss (I^2 x R), But to me this seems contradictory to the skin effect. Could someone please tell me why AC has less copper loss.