Answer / sachin kusumkar

KW = KVA*PF,
45KW = KVA*0.8
KVA = 56.25
Considering DG Efficiency 80% of rated KVA=56.25*1.25=70
cONSIDERING 20% SPARE /FUTURE LOAD KVA=70*1.2=84
so you need to select nearby available rating for selected brand in the market.

how is choose &depending upon the load why?

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