I need to know what should be the KVA rating of an Online UPS to serve 15 desktops and 2 Air Conditioners. I would also like to know what rating should the batteries have and how many batteries I would be needing to have a back up for the above mentioned devices for a minimum of 6 hours. I would like a reply ASAP. Thank you.
You haven't provided nearly enough information, especially about the air conditioner load.
But, for a six-hour backup, including environmental, you'ronline upse talking about a substantial system that will include both a battery-powered UPS for instant response, and a fuel-burning generator (diesel, gasoline, natural gas, or propane) for long-term backup.
Since you don't need instant response for the air conditioners, you might consider using 15 off-the-shelf commercial battery UPS systems for the computers, and put the whole facility on a transfer switch for the generator. The battery UPS systems will keep the computers up, andonline ups it won't matter if the air conditioners are off for a couple of minutes while the generator warms up.
Well if each comp consumes lets say max 500VA, you would need 7500VA plus lets say some 4kVA for 2 air cond.. So some 15kVA or 20kVA ups might be good one. I would recomend some 30 or 60 small 12V7AH batteries - would give you some authonomy of 10-20 minutes at 70% load.
Marc
http://onlineups.me
Showing posts with label online ups. Show all posts
Showing posts with label online ups. Show all posts
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