Empathy List Archives

JL

Jim Lux

Fri, Dec 30, 2011 12:16 AM

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:

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:

G

gary

Fri, Dec 30, 2011 2:16 AM

http://fnetpublic.utk.edu/gradientmap.html

So is Texas on it's own grid, or are they always out of sync with the
rest of the nation. ;-)

Any idea about the white streak leaving what looks like the Sacramento
delta towards Vegas?

On 12/29/2011 4:16 PM, Jim Lux wrote:

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:

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

> http://fnetpublic.utk.edu/gradientmap.html So is Texas on it's own grid, or are they always out of sync with the rest of the nation. ;-) Any idea about the white streak leaving what looks like the Sacramento delta towards Vegas? On 12/29/2011 4:16 PM, Jim Lux wrote: > 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: > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

JL

Jim Lux

Fri, Dec 30, 2011 2:20 AM

On 12/29/11 6:16 PM, gary wrote:

http://fnetpublic.utk.edu/gradientmap.html

I'm not sure if it's live data or a playback of recorded data, by the way

So is Texas on it's own grid, or are they always out of sync with the
rest of the nation. ;-)

Both.

Any idea about the white streak leaving what looks like the Sacramento
delta towards Vegas?

An artifact in the map drawing application, I'll bet.

On 12/29/11 6:16 PM, gary wrote: >> http://fnetpublic.utk.edu/gradientmap.html > I'm not sure if it's live data or a playback of recorded data, by the way > So is Texas on it's own grid, or are they always out of sync with the > rest of the nation. ;-) Both. > > Any idea about the white streak leaving what looks like the Sacramento > delta towards Vegas? > An artifact in the map drawing application, I'll bet.

PG

Peter Gottlieb

Fri, Dec 30, 2011 5:19 AM

Our battery-inverter systems follow frequency (or more usually the 4
second AGC signal from the ISO) and give or take power at multi-megawatt
levels to stabilize frequency changes.

This is the first I've seen a map of the entire CONUS though,
interesting stuff!

Peter

On 12/29/2011 9:20 PM, Jim Lux wrote:

On 12/29/11 6:16 PM, gary wrote:

http://fnetpublic.utk.edu/gradientmap.html

I'm not sure if it's live data or a playback of recorded data, by the way

So is Texas on it's own grid, or are they always out of sync with the
rest of the nation. ;-)

Both.

Any idea about the white streak leaving what looks like the Sacramento
delta towards Vegas?

An artifact in the map drawing application, I'll bet.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to
https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Our battery-inverter systems follow frequency (or more usually the 4 second AGC signal from the ISO) and give or take power at multi-megawatt levels to stabilize frequency changes. This is the first I've seen a map of the entire CONUS though, interesting stuff! Peter On 12/29/2011 9:20 PM, Jim Lux wrote: > On 12/29/11 6:16 PM, gary wrote: >>> http://fnetpublic.utk.edu/gradientmap.html >> > I'm not sure if it's live data or a playback of recorded data, by the way > >> So is Texas on it's own grid, or are they always out of sync with the >> rest of the nation. ;-) > > Both. > >> >> Any idea about the white streak leaving what looks like the Sacramento >> delta towards Vegas? >> > > An artifact in the map drawing application, I'll bet. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to > https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. >

PS

paul swed

Fri, Dec 30, 2011 3:46 PM

Interesting to watch the power freq shift.
Thanks
Paul

On Fri, Dec 30, 2011 at 12:19 AM, Peter Gottlieb nerd@verizon.net wrote:

Our battery-inverter systems follow frequency (or more usually the 4
second AGC signal from the ISO) and give or take power at multi-megawatt
levels to stabilize frequency changes.

This is the first I've seen a map of the entire CONUS though, interesting
stuff!

Peter

On 12/29/2011 9:20 PM, Jim Lux wrote:

On 12/29/11 6:16 PM, gary wrote:

http://fnetpublic.utk.edu/**gradientmap.html http://fnetpublic.utk.edu/gradientmap.html

I'm not sure if it's live data or a playback of recorded data, by the

way

So is Texas on it's own grid, or are they always out of sync with the

rest of the nation. ;-)

Both.

Any idea about the white streak leaving what looks like the Sacramento
delta towards Vegas?

An artifact in the map drawing application, I'll bet.

_____________**
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

Interesting to watch the power freq shift. Thanks Paul On Fri, Dec 30, 2011 at 12:19 AM, Peter Gottlieb <nerd@verizon.net> wrote: > Our battery-inverter systems follow frequency (or more usually the 4 > second AGC signal from the ISO) and give or take power at multi-megawatt > levels to stabilize frequency changes. > > This is the first I've seen a map of the entire CONUS though, interesting > stuff! > > Peter > > > > On 12/29/2011 9:20 PM, Jim Lux wrote: > >> On 12/29/11 6:16 PM, gary wrote: >> >>> http://fnetpublic.utk.edu/**gradientmap.html<http://fnetpublic.utk.edu/gradientmap.html> >>>> >>> >>> I'm not sure if it's live data or a playback of recorded data, by the >> way >> >> So is Texas on it's own grid, or are they always out of sync with the >>> rest of the nation. ;-) >>> >> >> Both. >> >> >>> Any idea about the white streak leaving what looks like the Sacramento >>> delta towards Vegas? >>> >>> >> An artifact in the map drawing application, I'll bet. >> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> and follow the instructions there. >> >> > ______________________________**_________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/** > mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> > and follow the instructions there. >

PL

Pete Lancashire

Fri, Dec 30, 2011 4:50 PM

and an effect

http://www.youtube.com/watch?v=25fS7kS6PfQ

-pete

On Fri, Dec 30, 2011 at 7:46 AM, paul swed paulswedb@gmail.com wrote:

Interesting to watch the power freq shift.
Thanks
Paul

On Fri, Dec 30, 2011 at 12:19 AM, Peter Gottlieb nerd@verizon.net wrote:

Our battery-inverter systems follow frequency (or more usually the 4
second AGC signal from the ISO) and give or take power at multi-megawatt
levels to stabilize frequency changes.

This is the first I've seen a map of the entire CONUS though, interesting
stuff!

Peter

On 12/29/2011 9:20 PM, Jim Lux wrote:

On 12/29/11 6:16 PM, gary wrote:

http://fnetpublic.utk.edu/**gradientmap.html http://fnetpublic.utk.edu/gradientmap.html

I'm not sure if it's live data or a playback of recorded data, by the

way

So is Texas on it's own grid, or are they always out of sync with the

rest of the nation. ;-)

Both.

Any idea about the white streak leaving what looks like the Sacramento
delta towards Vegas?

An artifact in the map drawing application, I'll bet.

_____________**
time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/**
mailman/listinfo/time-nutshttps://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

and an effect http://www.youtube.com/watch?v=25fS7kS6PfQ -pete On Fri, Dec 30, 2011 at 7:46 AM, paul swed <paulswedb@gmail.com> wrote: > Interesting to watch the power freq shift. > Thanks > Paul > > On Fri, Dec 30, 2011 at 12:19 AM, Peter Gottlieb <nerd@verizon.net> wrote: > >> Our battery-inverter systems follow frequency (or more usually the 4 >> second AGC signal from the ISO) and give or take power at multi-megawatt >> levels to stabilize frequency changes. >> >> This is the first I've seen a map of the entire CONUS though, interesting >> stuff! >> >> Peter >> >> >> >> On 12/29/2011 9:20 PM, Jim Lux wrote: >> >>> On 12/29/11 6:16 PM, gary wrote: >>> >>>> http://fnetpublic.utk.edu/**gradientmap.html<http://fnetpublic.utk.edu/gradientmap.html> >>>>> >>>> >>>> I'm not sure if it's live data or a playback of recorded data, by the >>> way >>> >>> So is Texas on it's own grid, or are they always out of sync with the >>>> rest of the nation. ;-) >>>> >>> >>> Both. >>> >>> >>>> Any idea about the white streak leaving what looks like the Sacramento >>>> delta towards Vegas? >>>> >>>> >>> An artifact in the map drawing application, I'll bet. >>> >>> ______________________________**_________________ >>> time-nuts mailing list -- time-nuts@febo.com >>> To unsubscribe, go to https://www.febo.com/cgi-bin/** >>> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >>> and follow the instructions there. >>> >>> >> ______________________________**_________________ >> time-nuts mailing list -- time-nuts@febo.com >> To unsubscribe, go to https://www.febo.com/cgi-bin/** >> mailman/listinfo/time-nuts<https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts> >> and follow the instructions there. >> > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

DV

David VanHorn

Fri, Dec 30, 2011 5:13 PM

I would love to see something like that which plotted voltage.

From: time-nuts-bounces@febo.com [time-nuts-bounces@febo.com] On Behalf Of Jim Lux [jimlux@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:

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

I would love to see something like that which plotted voltage. ________________________________________ From: time-nuts-bounces@febo.com [time-nuts-bounces@febo.com] On Behalf Of Jim Lux [jimlux@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: _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

JL

Jim Lux

Fri, Dec 30, 2011 5:28 PM

On 12/30/11 9:13 AM, David VanHorn wrote:

I would love to see something like that which plotted voltage.

Send them a note.. Their little monitoring widgets record all of that
and send it back to the databases. I'll bet the data is available, you
just have to know how to ask for it.

On 12/30/11 9:13 AM, David VanHorn wrote: > > I would love to see something like that which plotted voltage. > Send them a note.. Their little monitoring widgets record all of that and send it back to the databases. I'll bet the data is available, you just have to know how to ask for it.

S

shalimr9@gmail.com

Fri, Dec 30, 2011 10:47 PM

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@elec-solutions.com
Sender: time-nuts-bounces@febo.com
Date: Fri, 30 Dec 2011 10:13:38
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Reply-To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] line frequency website

I would love to see something like that which plotted voltage.

From: time-nuts-bounces@febo.com [time-nuts-bounces@febo.com] On Behalf Of Jim Lux [jimlux@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:

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

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@elec-solutions.com> Sender: time-nuts-bounces@febo.com Date: Fri, 30 Dec 2011 10:13:38 To: Discussion of precise time and frequency measurement<time-nuts@febo.com> Reply-To: Discussion of precise time and frequency measurement <time-nuts@febo.com> Subject: Re: [time-nuts] line frequency website I would love to see something like that which plotted voltage. ________________________________________ From: time-nuts-bounces@febo.com [time-nuts-bounces@febo.com] On Behalf Of Jim Lux [jimlux@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: _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.

B

bownes

Fri, Dec 30, 2011 10:55 PM

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@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@elec-solutions.com
Sender: time-nuts-bounces@febo.com
Date: Fri, 30 Dec 2011 10:13:38
To: Discussion of precise time and frequency measurementtime-nuts@febo.com
Reply-To: Discussion of precise time and frequency measurement
time-nuts@febo.com
Subject: Re: [time-nuts] line frequency website

I would love to see something like that which plotted voltage.

From: time-nuts-bounces@febo.com [time-nuts-bounces@febo.com] On Behalf Of Jim Lux [jimlux@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:

time-nuts mailing list -- time-nuts@febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.

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@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@elec-solutions.com> > Sender: time-nuts-bounces@febo.com > Date: Fri, 30 Dec 2011 10:13:38 > To: Discussion of precise time and frequency measurement<time-nuts@febo.com> > Reply-To: Discussion of precise time and frequency measurement > <time-nuts@febo.com> > Subject: Re: [time-nuts] line frequency website > > > I would love to see something like that which plotted voltage. > > > ________________________________________ > From: time-nuts-bounces@febo.com [time-nuts-bounces@febo.com] On Behalf Of Jim Lux [jimlux@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: > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ > time-nuts mailing list -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there.

time-nuts@lists.febo.com

line frequency website