gabeNC
Member
Howdy gents,
Sorry about the long post and hopefully I can articulate the issue.
Just wonder if anybody here has experience with large UPS's in data centers. We've been having a discussion / argument about what happens when redundant power supplies fail. Ideally we would want the load evenly distributed across each UPS in the event of either a loss of power at the power supply, PDU or a UPS. (In the event of commercial power loss, a generator will be online within a couple of minutes).
so the question is... does power on a redundant power supply split across both (load balanced) or a hot standby? If it is considered a hot standby i would imagine there would be at least some current draw on the secondary so there would not be a noticeable hic-up.
One idea I had was to put one of those "kill-a-watt" meters and measure each PSU. (shrug).
The next question is that if one UPS was to fail would the other one's load double? My fear is that if one died, the other one could not sustain the entire load. I guess the answer to this question probably lies within the answer of the first one.
thanks!
Sorry about the long post and hopefully I can articulate the issue.
Just wonder if anybody here has experience with large UPS's in data centers. We've been having a discussion / argument about what happens when redundant power supplies fail. Ideally we would want the load evenly distributed across each UPS in the event of either a loss of power at the power supply, PDU or a UPS. (In the event of commercial power loss, a generator will be online within a couple of minutes).
so the question is... does power on a redundant power supply split across both (load balanced) or a hot standby? If it is considered a hot standby i would imagine there would be at least some current draw on the secondary so there would not be a noticeable hic-up.
The next question is that if one UPS was to fail would the other one's load double? My fear is that if one died, the other one could not sustain the entire load. I guess the answer to this question probably lies within the answer of the first one.
thanks!