I saw a presentation long ago about the early days of electrification, when
sales forces got "spiffed" for selling to customers with lagging or leading
loads depending on the current mix the power company had, and offering
discounts for customers with purely resistive loads!
At least 50% of all industrial location decisions are based on available power
options and costs.
73 John N5CQ
-----Original Message-----
From: RFI <rfi-bounces+woyb10051=outlook.com@contesting.com> On Behalf Of Jim
Brown
Sent: Monday, December 30, 2024 1:06 AM
To: rfi@contesting.com
Subject: Re: [RFI] Interesting...
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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