My experience tells me that after the system is up and running normally, the VD using the 500KCMIL AL will be at, or less than 3%. But that's just my opinion.
I don't see how you can make that statement given the loads that were submitted by the OP.
bob said:VD using 2-500's and 2-4/0's results in a VD of 4.5%. Apparently that is to high for the OP's design
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