Subdivision if all households, while the coefficient can be selected 0.8, if there are schools, hospitals, stores, etc., can be selected 0.5-0.8 up and down, as for the 0.35 may be all the stores can be entertainment centers, if you calculate the 2880KW just add up with each household, then in the calculation of the transformer to be divided by 3,
that is, 2880/3 = 960KW, and then * coefficients 0.8 = 768KW, in addition to the transformer utilization factor of 0.85 = 903KW, which is the capacity, if you take the other coefficients at the same time, the results of your own can be figured out