[time-nuts] Line Voltage - USA
phk at phk.freebsd.dk
Thu Jan 5 02:32:40 EST 2017
In message <CANX10hDU56pOQ1kQAbDBGLSS6U0D=AMp+=D7cajBhxb+zKDTfA at mail.gmail.com>
, "Dr. David Kirkby (Kirkby Microwave Ltd)" writes:
>I measured my voltage overnight in a peak hold at 255.10 V RMS as close to
>the meter as I could.
There is a very specific procedure for measuring this and it averages
over some number of seconds which I have forgotten.
Peaks happen all the time when stuff turns on and off.
>I spoke to a friend of mine who worked at the CEGB. He thought I might have
>a tough time getting the electricity company to do anything about 2.1 V if
>it was expensive for them to do.
All transformers have "Winding-couplers", basically switches that
pick how many windings to use for the exact same reason.
After they buried the distribution here, the voltage rose.
I called them and explained it was above limits for many minutes
at a time (causing my solar inverter to stop).
A truck popped around, cut power to the local area, and dropped a
couple of volts on the transformer, turned power on again and the
problem was fixed.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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