A 15 KVA, 2400/240 V, 1-o transformer has an equivalent resistance and reactance, both referred to the primary side, of Req = 2.5 2 and Xeq = 4.5 92, respectively. The core loss is 80 W. The transformer delivers rated kVA to a load at rated secondary voltage and 0.9 power factor lagging. a. Determine the voltage applied to the primary side. b. Determine the percent voltage regulation. C. Find the efficiency of the transformer.

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.