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RE: Power monitoring Re: Power Outage in Chicago Loop
- From: David Hares
- Date: Tue Oct 10 16:06:07 2000
I'll bite ...
I've been looking for a unit that monitors just those parameters (voltage
and current on each phase as well as DC voltage, DC Current, temp, and
humidity) for the same reasons. Would you care to share how it's being
> -----Original Message-----
> From: email@example.com [mailto:firstname.lastname@example.org]On Behalf Of
> Nathan Stratton
> Sent: Monday, October 09, 2000 11:27 AM
> To: Sean Donelan
> Cc: email@example.com
> Subject: Re: Power monitoring Re: Power Outage in Chicago Loop
> On 9 Oct 2000, Sean Donelan wrote:
> > After my first summer in PG&E country, I've been wondering if there was
> > a way for ISPs to share power quality data about the local utility. For
> > the most part, every ISP in a region experiences the same woes
> and problems
> > of the electric utility. Most ISPs are capable of at least
> minimal monitoring.
> > If the shared data was limited to only the upstream side of the
> ISPs power
> > system, it would show the performance of the utility; but ISPs
> could still
> > keep any internal problems secret. While a power quality meter would be
> > nice, even SNMP capable UPSes can report basic data.
> We are just now starting to graph voltage and current on each
> phase as well
> as DC voltage, DC Current, temp, and humidity. We are doing all this via
> AI Spy units in each pop.
> > What is "normal" power throughout the country? How severe can power get?
> Well that thing that freaks me out is the voltage swing over a given
> day. At first I thought the problem was that the building did not have
> large enough feed, but now that we are graphing voltage on other
> datacenters we see the same trend. We see voltage swings in my cities of
> up to 25 volts every day.
> Nathan Stratton CTO, Exario Networks, Inc.
> firstname.lastname@example.org email@example.com
> http://www.robotics.net http://www.exario.net
> Check out telecom papers: http://www.robotics.net/papers