DT Serie also is very good,output PF=0.9, and DT 30KVA,customer can choose use 28pcs,or 30pcs or 32pcs battery.DT 30KVA unit price: USD2450/PC.
I don't konw where this 30kva ups is used,so you can think yourself.
DT Serie is high frequency ups,RP Serie is low frequency ups.