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Sorry about that, the new Voltage Drop percentages are as follows:
1 circuit @ 230V fed from a 11kV/400/230
Xformer, is 5.5%
1 circuit @ 400V fed from a 11kV/400/230
Xformer, is 10%

Now you've lost me. Are you referring to voltage drop from transformer to house?

Why would the voltage drop % be different for a 400V service? Is this to take into account that there is balance of load and hence no voltage drop in the neutral? [Linked Image]

[This message has been edited by C-H (edited 10-05-2002).]