Anyone reading this know something about transformers? I'm still wondering what transformers may take months to build. I may do some searching.
Large high voltage transformers take a while to build.
Some of them are the size of a two story double garage and others are larger.
They are complex to an extent and not something a manufacturer can knock out in a few days.
And . . . as expensive as they are, it's too costly to have spares just sitting around.
Generally speaking, large transformers are a custom built deal.
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Finally the tv show stated that the intensity of the storm would not be fully realized until it was too late to shut down the power stations. I'm
just wondering what thoughts anyone may have on this. Were they referring to some kind of special transformers at substations?
Power companies subscribe to solar storm watch outfits and get solar storm predictions hours in advance.
If there is a major system wide problem, the system will shut down on it's own within a few seconds.
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However, when everything else goes out the Nuclear Plant will detect a sudden drop in power usage, and so will cut out a lot of its power-producing
abilities.
A Nuke plant is like any other generation station - except for it's method of generating heat - and simply backs down to compensate for the lesser
load.
(Or cranks in some throttle if the load increases.)
Nuke plants have several on-site cold start units to carry auxiliaries if the generation unit trips off.
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Interesting reading about the 1859 solar flare.
Solar Flare Information
Grid Information during Solar Flares
I question the comment about re-starting a system from zero and having the load go to 600 times the normal load.
My experience when energizing lines that have a lot of rotary load set to come on is that the load may go to 50% of the previous load and taper back
to normal in less than a half minute.
(Summer heat has a lot of rotary equipment running - A/C, fans etc. Winter is mostly resistive load, lights etc.)
Other sites about solar flares I checked use wildly overstated amp flow figures.
One site in particular calling for 13,000 + amps on a distribution level line.
(12kv - 16kv)
These lines usually carry 400-600 amps at a maximum.
Other basic electricity comments are incorrect as well which leads me to wonder how accurate their comments about solar flares are.
The two sites mentioned above - except for the 600 times bit noted - are reasonably accurate.