[time-nuts] Timing Distribution in Mountainous Terrain
lists at rtty.us
Sun Sep 12 16:34:32 UTC 2010
Quebec Hydro and I suspect others use it to regulate power generation facilities. Keeps them from simply cross feeding power through the reactance of the distribution network. They have some pretty long lines between source and load....
On Sep 11, 2010, at 10:53 PM, Brian Kirby <kilodelta4foxmike at gmail.com> wrote:
> I believe the primary reasons for GPS receivers for the power industry is power line fault location. They use time tagging to measure disturbances to locate a fault and it's accuracy directly determines its resolution.
> On 9/11/2010 7:33 PM, jimlux wrote:
>> Stan, W1LE wrote:
>>> If the odd harmonics were filtered out, would the zero crossing of the
>>> 60 (50) Hz fundamental
>>> be stable enough ?
>> not to 30 ns <grin>
>> Interestingly, one of the markets that Symmetricom/TrueTime/Datum sells
>> into is GPS disciplined receivers used for power control. Power
>> transmission is managed by controlling relative phases in the system,
>> not to mention things like synchronizing generators.
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