[time-nuts] line frequency website

bownes bownes at gmail.com
Fri Dec 30 17:55:05 EST 2011


Imagine a 3d map in which colour represents phase or frequency and Z displacement of the sample point represents voltage. 

Would make for a nice animation anyway. 



On Dec 30, 2011, at 17:47, shalimr9 at gmail.com wrote:

> The problem is that while the frequency is going to be pretty much the same anywhere on the same grid, the voltage is not. Knowing the voltage at some point in your state (or another) is not all that useful. They may record it, but I am not even sure it would be worth saving in a database.
> 
> Didier KO4BB
> 
> Sent from my BlackBerry Wireless thingy while I do other things...
> 
> -----Original Message-----
> From: David VanHorn <D.VanHorn at elec-solutions.com>
> Sender: time-nuts-bounces at febo.com
> Date: Fri, 30 Dec 2011 10:13:38 
> To: Discussion of precise time and frequency measurement<time-nuts at febo.com>
> Reply-To: Discussion of precise time and frequency measurement
>    <time-nuts at febo.com>
> Subject: Re: [time-nuts] line frequency website
> 
> 
> I would love to see something like that which plotted voltage.
> 
> 
> ________________________________________
> From: time-nuts-bounces at febo.com [time-nuts-bounces at febo.com] On Behalf Of Jim Lux [jimlux at earthlink.net]
> Sent: Thursday, December 29, 2011 5:16 PM
> To: Discussion of precise time and frequency measurement
> Subject: [time-nuts] line frequency website
> 
> Check it out:
> 
> http://fnetpublic.utk.edu/tabledisplay.html
> 
> line frequency measurements updated once a second
> 
> Operated by the Power Information Technology Laboratory at the
> University of Tennessee, FNET is a low-cost, quickly deployable
> GPS-synchronized wide-area frequency measurement network. High dynamic
> accuracy Frequency Disturbance Recorders (FDRs) are used to measure the
> frequency, phase angle, and voltage of the power system at ordinay 120 V
> outlets. The measurement data are continuously transmitted via the
> Internet to the FNET servers hosted at the University of Tennessee and
> Virginia Tech. The Power IT Lab has developed several applications which
> use the FNET data to study the power system, including:
> 
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