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Two single-phase transformers serving 12 customers are shown in the Figure below:The 15-minute kW demands for the 12 customers between the hours of 5:00 p.m. and 9:00 p.m.are given in

the tables that follow. Assume a load power factor of 0.95 lagging. The impedance of the lines are Z = 0.306 + j0.6272 Q/mile. The voltage at node N1 is 250020 V. Transformer ratings are as follows: T1 25 kVA 2400-240 V Zpu = 0.01840° T2 37.5 kVA 2400-240 V Zpu = 0.020450° a) Determine the maximum kW demand for each customer. b) Determine the average kW demand for each customer. d) Determine the load factor for each customer. c) Determine the kWH consumed by each customer in this time period. e) Determine the maximum diversified demand for each transformer. f) Determine the maximum non-coincident demand for each transformer. g) Determine the utilization factor (assume 1.0 power factor) for each transformer. h) Determine the diversity factor of the load for each transformer. i) Determine the maximum diversified demand at Node N1. j) Compute the secondary voltage for each transformer, taking diversity into account. k) On a different day, the metered 15-minute kW demand at node N1 for the system of Problem 2.3 is 72.43 kW. Assume a power factor of 0.95 lagging. Allocate the metered demand to each transformer based upon the transformer kVA rating. Assume the loads are constant current and compute the secondary voltage for each transformer.

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