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North American Network Operators Group Date Prev | Date Next | Date Index | Thread Index | Author Index | Historical Re: UPS and generator interaction?
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 [email protected] GPG Key Fingerprint: 5C6E 0104 BAF0 40B0 5BD3 C38B F000 35AB B67F 56B2
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