Check the nameplate of the unit. It should indicate the VA or Watts and a time. Your needs are 100 KW for 2 hours or 200KW-Hour. Take into consideration any losses or power drops near the end, so size the UPS to somewhat larger.
First is the size of the UPS.
UPSs are sized in KVA with an allowance generally down to PF=0.8. So you need a 120kVA UPS to cater for the load at any given time.
Second is run-time.
A Rotary UPS can't help you past about 60secs.
A Static UPS runs on batteries.
The size of the battery bank associated with your UPS needs to have an AmpHour rating sufficient for two (2) hours.
So you need to look at the UPS find out what the battery voltage is. Then install sufficient AmpHours at that volatge to give you the run time you are after.
I suggest you get your UPS Vendor or electrician to help you out with the battery connections.
Regards,
Sapper.
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Your KVA rating as has has been already informed = 100/0.8 = 125 KVA by prev posts
Hence your UPS should be rated for minimum 125 KVA rating.
Next is your back-up battery bank
Assume your batteries are 9V so you need 125000/9 = 13888 A = say 14 KA and that for 2 hours
So your batteries added up AH rating should be at least 28 KAH @9V
say one battery provides you with 3 KAH rating (will be avl on the battery) - so you need 9.33 = 10 such batteries at least.
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UPS
Re: UPS
