Merit Network
Can't find what you're looking for? Search the Mail Archives.
  About Merit   Services   Network   Resources & Support   Network Research   News   Events   Home

Discussion Communities: Merit Network Email List Archives

North American Network Operators Group

Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical

Re: UPS and generator interaction?

  • From: Joel Jaeggli
  • Date: Mon Mar 29 14:21:09 2004

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






Discussion Communities


About Merit | Services | Network | Resources & Support | Network Research
News | Events | Contact | Site Map | Merit Network Home


Merit Network, Inc.