Answer Posted / jc millar

When does the other KVA ratings come into play. For example consider
OA 55 C / OA 65C / FA 55 / FA 65 C.
Assuming the maximum demand process load is used to select the base rated KVA
i.e. OA 55C.
When do the other KVA ratings come into the load study ?
We understand the max. group motor load starting being = < 65 % Base KVA.
Can someone please explain.

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