It's still +47 seconds. Perhaps they'll correct over the weekend. Wind generation is high at the moment, contributing 13.64GW to the 34GW UK total demand (it it 22:100 as I write). Perhaps the high wind generation level is the reason for the extended high frequency session.
Andy www.g4jnt.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Fri, 12 Feb 2021 at 21:38, Alex Pummer <[email protected]> wrote: > at the time I grew up in Eastern Europe -- "communist time" -- they kept > he clocks using the line frequency as reference -- by counting the > periods during the day and week and for longer time for equal time > interval the "provided" equal number of line frequency periods, as > longer the time interval was as more precise was the time. That way the > clocks were relative accurate. They could do it since everything was > "central governed". > > On 2/12/2021 9:24 AM, Lux, Jim wrote: > > On 2/12/21 8:23 AM, Thomas D. Erb wrote: > >> "I would think they try to hold it over 1 day, so that mains driven > >> > >> clocks don't run slow or fast.? That being said, I wonder how many > >> > >> clocks are still being built using a synchronous motor drive? Given that > >> > >> all the clocks on appliances in my kitchen have drifted apart, I'll bet > >> > >> they use their internal microcontroller crystal as a reference." > >> > >> Actually I think all of my kitchen appliances use line frequency for > >> time reference - it's so easy to count. > > > > > > Maybe.. you've got to condition the AC from the secondary side of the > > transformer and use a pin to bring it in on, which requires at least 2 > > or 3 passive components, and you already have a crystal for the > > microcontroller (thinking here of oven timers and the like, which have > > a numeric display). These applications are super price sensitive, and > > those 2 or 3 components cost money, in components, in board space, and > > in assembly costs. Pennies to be sure, but... > > > > And the fact that my appliances drift on the order of a minute in a > > month, differently. So maybe some count cycles and some have a rock. > > > > > > > > _______________________________________________ > > time-nuts mailing list -- [email protected] > > To unsubscribe, go to > > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > > and follow the instructions there. > > > > > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to > http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
