[time-nuts] 60 Hz power glitch, US West coast (Silicon Valley)

Jimmy Burrell jimmydburr at gmail.com
Wed Feb 5 12:14:36 UTC 2014


Hal,

Interesting.. I'm assuming the green graph is actual voltage and the red graph is..?

I've never done any mains monitoring/measuring and was wondering, what's your equipment setup?

Thanks,

Jimmy...
N5SPE

> On Feb 4, 2014, at 8:43 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
> 
> 
> This one caught my eye.
> 
> Jan 20, 2014, Wed
>  http://www.megapathdsl.net/~hmurray/time-nuts/60Hz/2014-Jan-29-a-dip.png
> I think this is the biggest dip I've seen, down below 59.8 Hz.
> That's averaged over 10 seconds.
> 
> Feb 02, 2014, Sun
>  http://www.megapathdsl.net/~hmurray/time-nuts/60Hz/2014-Feb-02-a-dip.png
> This one got below 59.9 Hz.
> 
> I guess I should write some code to scan the archives.  I wonder how many 
> similar glitches I've missed.
> 
> The last 50 days days:
>  http://www.megapathdsl.net/~hmurray/time-nuts/60Hz/Dec-2013.png
> Peak-peak offset is 15 seconds.
> 
> 
> -- 
> These are my opinions.  I hate spam.
> 
> 
> 
> _______________________________________________
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.



More information about the Time-nuts_lists.febo.com mailing list