3kva vs 1kva

Salam frnds..

Kia small load k liy.3kva a6a hy ja1kva?

48v vs 24v.?2fan k liy dono ki timeing ka kitna differnce ho ga.?or Apc homage ki trha off ni hota.mtlab agr load ni hy to off kr dia jay.bat save k liy.jb wabda jy to on na ho..any1 help.