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For an AC single-phase P = I x V x PF Where, P = power (watts) I = current (MVA) V = voltage (volts) PF = power factor; for this effort we will assume it is equal to 1 P Therefore, I = V x PF For an AC three-phase P = I x V x √3 x PF Where, P = power (watts) I = current (MVA) V = voltage (volts) PF = power factor; for this effort we will assume it is equal to 1 P Therefore, I = V x √3 x PF Existing Circuit Information Voltage, kV 12.5 Capacity, MVA 13.01 Summer Peak, MVA 6.1 Phase 3 Current Peak Rating 46.89% Diversified Load Estimated Apartment Load = 807kW; 807/1000 = 0.81MVA Proposed new peak load = 6.1 + 0.81 = 6.91MVA Peak Rating % = (6.91/13.01) x 100 = 53.09% Diversified Total Power, kW 1,199 Total Load, MVA 1.20 New Peak Circuit Load, MVA 7.30 Peak Rating 56.10% Page 48 of 110