If they are doing the single phase equivalent calculation and divide 480 by square root of 3, then why don't they divide the total balanced load of 400A by 3 to get the equivalent 133.33A per phase?
If they are doing the single phase equivalent calculation and divide 480 by square root of 3, then why don't they divide the total balanced load of 400A by 3 to get the equivalent 133.33A per phase?
what you are thinking of is diving the complex power by 3 in a 3 phase circuit. What they the formula calls for is the current which needs no alteration for our purpose here.
