power outage in San Francisco data center
power outage in San Francisco data center
(OP)
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power outage in San Francisco data center
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RE: power outage in San Francisco data center
RE: power outage in San Francisco data center
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: power outage in San Francisco data center
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Sometimes I only open my mouth to swap feet...
RE: power outage in San Francisco data center
RE: power outage in San Francisco data center
They work great and are good ride-through for power fluctuations.
The big question is where were they sensing the power at? Do they have multiple feeders?
Do they switch between feeders rather than start generators?
Do they have a main generator control system for staged starting of the units?
Lots and lots of questions.
Regards.
RE: power outage in San Francisco data center
That together with the problem at CDC in Atlanta, it's been a bad couple of weeks for standby power.
RE: power outage in San Francisco data center
RE: power outage in San Francisco data center
Are you have some new information?
Could you please send some links about "rotary UPS", it's intresting. I'm never see this and I would like learn about this system.
Thanks.
Slava
RE: power outage in San Francisco data center
Have a poke around on this web site: http://www.euro-diesel.com/total_technical.html
Eurodiesel are one of a handful of manufacturers who make this general type of UPS. I like them because they have great fault clearing ability and can start awkward loads like motors without massively oversizing the system. They have their downside too: they are relatively maintenance-heavy, only available in large sizes (I think the smallest is about 250kW) and are expensive per installed kW compared to a static unit of similar rating.
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Sometimes I only open my mouth to swap feet...
RE: power outage in San Francisco data center
Mike Halloran
Pembroke Pines, FL, USA
RE: power outage in San Francisco data center
"During over 100 start/stop tests late Saturday night on Unit 1, the investigation team was able to simulate failure. "
Seems like Unit 1 might be about worn about by now.