I maintain a real time display of mains frequency, and the cumulative timing offset from real time. It was last reset 10 days ago when we had a brief power outage (HV fault a mile or so away).
Since then, for the first few days the timing discrepancy kept within plus/minus perhaps 20 seconds. But in the last couple of days is has crept up and is now sitting at +48 seconds. On average the frequency will have been running about 0.013Hz high to give that. Given Nat. Grid still aim to average out to exactly 50Hz, does anyone know if there is a time scale associated with that long-term average? 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> _______________________________________________ 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.
