It seems that long distance high voltage DC power lines are possible and indeed are being used over 600km according to wikipedia, which goes on to say that they are economical wrt power losses.
Can anyone explain in fairly basic terms what the theory is and why not A.C. which I always believed to be superior for long transmission lines.
Can anyone explain in fairly basic terms what the theory is and why not A.C. which I always believed to be superior for long transmission lines.