On 12/29/2024 6:43 PM, William Kim . wrote:
This is interesting. We (our utility) keep an eye on loads and distortion
caused by loads. There are restrictions.
The link seems to be "technobabble" from a reporter who didn't
understand most of what someone (or multiple someones) told him.
Power systems all over the world have been plagued with highly distorted
load currents for decades, ever since electronic loads have become a
very large fraction of the load on our power systems. Virtually all the
load current flows at positive and negative peaks of the sine wave,
causing very high levels of distortion. To make matters much worse,
triplen harmonics (those whose harmonic number is divisible by three)
from load currents ADD in the neutral in three phase systems, and
leakage currents add in the protective earth. I addressed all of this
about 20 years ago in this "White Paper for contractors installing large
audio and video systems for public buildings.
What is far more concerning about these data centers is the sheer
magnitude of their loads, and added demands it places on power systems,
cooling systems and the loads they place on the environment, and so on.
I've seen a lot of more intelligent and better informed reporting on on
these very real issues in the mainstream press.
73, Jim K9YC
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