Answer Posted / prakash veer singh

Dear vivak
first , we see.what is EER of used ac system , if ac EER
is 8. ac load less 20% .

then
1.5 ton= 18000 btu = 5.250kw
20 nos. acs load =20*5.250KW
= 105 KW
DG pf is 0.8 and DG safty margine is 20%.
than 105*1.4=147KVA

we use 150kva DG and more .

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