Three loads are connected in parallel with a terminal voltage of 250 V(rms). Load 1 absorbs 16kW and 18 kVAR. Load 2 absorbs 10kVA with a 0.8 leading power factor. Load 3 absorbs 8kVA at a unity power factor.
(a) Find the combined load impedance of the three loads.
(b) Draw the power triangle of the combined load.

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.