Installing a 75KVA 480/208 3 Phase Transformer Secondary current is 208 amps. This would require 4/0 conductors and #2 grounding electrode conductor which will not fit in 2" GRC if the neutral is going to carry only the unbalanced current can I reduce the neutral conductor size, even a 3/0 and 3 - 4/0's and the #2GR would fit in a 2" GRC making for an easier install. Thanks in advance!!
