[time-nuts] Line Frequeny Stablity

Magnus Danielson magnus at rubidium.dyndns.org
Tue Apr 4 15:10:02 UTC 2017


Hi,

It's based on UTC, as derived from GPS.

I think you will find the following NASPI report of interest:
https://www.naspi.org/node/608

You will find maps over the regions too!

While NASPI is PMU/synchro-phasor focused, older equipment use GPS too 
for phase capture.

Cheers,
Magnus

On 04/04/2017 03:33 PM, Thomas D. Erb wrote:
> I was wondering if anyone knew how the US power grids control their line frequency with respect to time ?
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> There seems to be four separate grids - Eastern, Texas, Western and Quebec - but I have no idea how they get their time.
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> Thomas D. Erb
> tde at electrictime.com<mailto:tde at electrictime.com> /
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