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I lived in a small midwestern town while I was growing up that had a
municipal power plant. This was in the 1950's. One of the hams and a
good friend of my dad's was an engineer at the plant. Since I was a ham
at an early age and very interested in electricity in general, my dad
arranged for a tour of the plant. I distinctly remember that the
engineer showed us a control panel that indicated the current frequency
and another display that either showed the lead or lag times; or the
accumulated cycles and another meter that showed what they should be. I
forget which was displayed. But the discussion of those meters involved
the fact that at certain times they would speed up or slow down the
frequency so that the right number of cycles occurred over a given
period. A day, a month, a year,? I don't recall that detail. So the
implication was that they could speed up or slow down and it was done
locally.
Now I wonder if this was before there was a "grid" and/or this
generating plant was not on the grid? I don't ever recall him talking
about a grid. Maybe this explains why the other member got the same
impression I did. Perhaps before stations were on the grid they did
have to regulate the line frequency.
Jim.
wrote:
>
> Because of this I cannot understand the message of another list member that
> says the Power Company whips up the squirrels before midnight to get the
> number of cycles per day to the right figure. This would be impossible. The
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