[69189] in North American Network Operators' Group
Re: UPS and generator interaction?
daemon@ATHENA.MIT.EDU (Joel Jaeggli)
Mon Mar 29 14:18:40 2004
Date: Mon, 29 Mar 2004 11:16:19 -0800 (PST)
From: Joel Jaeggli <joelja@darkwing.uoregon.edu>
To: Mike Lewinski <mike@rockynet.com>
Cc: "Brian (nanog-list)" <nanog@confluence.com>, <nanog@merit.edu>
In-Reply-To: <406870B5.6080205@rockynet.com>
Errors-To: owner-nanog-outgoing@merit.edu
On Mon, 29 Mar 2004, Mike Lewinski wrote:
>
> Brian (nanog-list) wrote:
>
> > Does anyone know of a way to get a UPS to trigger a generator to start, and
> > to switch over to the generator power automatically or does this type of
> > thing just not exist?
>
> What Patrick said.
>
> But, on a minor note that probably won't affect your Symmetra but I'm
> posting in case anyone else here can shed light on.... we had a power
> event this AM. The transfer switch did it's magic and all was good...
> Except for two new APC1400's- they failed once the batteries drained. I
> triple-checked that they were on the right panel, played with
> sensitivity, even tried daisy-chaining one off a good working 2200.
> Nothing I did would convince the two 1400s they had power. Once the
> house power was restored they came back to life and look normal. I later
> learned that two of our colo customers with APC1400s had the same
> problem :( Other models (even a couple non-essential lower-end, dumb APC
> 450s and 650s) didn't blink at the generator power.
It's possible that the generatar is running to fast or slow and the
frequency is out of range for the ups... I had this happen in Ghana,
generator was producing 47.5hz, opened the throttle and everything was
fine.
> Mike
>
--
--------------------------------------------------------------------------
Joel Jaeggli Unix Consulting joelja@darkwing.uoregon.edu
GPG Key Fingerprint: 5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2