. Calculate the average power in kW that can be generated in a hydro-electric from the following data Catchment area = 5×109 m²; Mean head; H = 30 m; Annual rainfall; F = 1.25 m; Yield factor; K=80%, noveall =70% If the load factor is 40%; what is the rating of generators installed

If, in one (360 degrees), all of the instantaneous power falls under positive loops (no negativeloops), the load must be:a. A resistorb. An inductor or capacitorExplain:

If the voltage and current supplied to a circuit orload by a source are˜VS = 170∠(−0.157) V ˜IS = 13∠0.28 Adeterminea. The power supplied by the source which isdissipated as heat or work in the circuit (load).b. The power stored in reactive components in thecircuit (load).c. The power factor angle and power factor.

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Which of the following descriptions IS NOT correct for loads in power systems? A. The purely resistive load absorbs the real power from the power grid B. The purely inductive load absorbs the positive reactive power from the power grid C. The purely capacitive load absorbs the positive reactive power from the power grid. D. The average value of the instantaneous power through loads is equal to its real power. In an ac circuit, power factor correction or improvement is achieved by A. Connecting a resistor in parallel with the inductive load B. Connecting an inductor in parallel with the inductive load C. Connecting a capacitor in parallel with the inductive load A balanced delta-load can be converted to an cquivalent balanced wye- load by dividing the delta-load impedance by A. square root of 3 В.3 C. 1/3

a load of 15 mva with power factor 0.86 lagging is given. Calculate the reactive power delivered by shunt capacitors to increase power factor to 0.9 lagging​

A d.c. serier generator, having an external characteristic which is a straight line through zero to 50 V 200 A is connected as a booster between a station bus bar and a feeder of 0.3 ohm resistane. Calculate the voltage difference between the station bus-bar and the far end of the feeder qa current of (i) 200 A and (ii) 50 A.

The power output from steam turbine shown below is 500 kW when the steam flow rate is 1.4 kg/s. The enthalpy of the steam at inlet is 3033 kJ/kg and at outlet is 2653 kJ/kg. Determine the heat loss per second from the turbine.

A generating station has a maximum capacity of 100 kW and costs $300,000. The annual fixed charges are 12% of the cost of the generating station consisting of 5% interest, 5% depreciation and 2% taxes. Find the fixed charges per kWh generated if load factor is (a) 100% and (b) 25%.

This question is about electrical power and I want to answer in 20 minutes