06-06-2012 10:26 PM
the customer's load is 200KVA, pf o.6, Smooth start, if I choose the standard alternator(PF 0.8), what the power of the alternator need, Tks!
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07-23-2012 08:02 PM
The ekw of load is 120ekw, the KVA is 200KVA.
The KVA and KW of alternator should be bigger than load, so the alternator should be less 200KVA @pf=0.8.
Because the alternator is standard designed for pf=0.8, so the prime mover is bigger.
But the alternator should be derated @ pf=0.6, the factor is 0.85, so the alternator should be oversized to 236KVA.
I suggest you select a standard 150kva/120kw(pf=0.8) genset and oversized the alternator to 236KVA.
Hope to help you.