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A hydroelectric power plant has a synchronous generator whose speed must be fixed at 180 r/min. The turbine is Francis type with 10 m runner diameter. When the flow rate at the nozzle of the penstock is 10 m3/s, the generated electricity is 50 MW. If the total efficiency of the generator, turbine, and hydro is 88%, compute the velocity of the water jet.
there are two infinite lines, each carrying uniform charge density and they reside in free space located parralel to the z axis at x = -1 and x =1. determine E at an arbitrary point along the y axis.
A dc power distribution cable has two #6 copper wires. The copper wire table in the textbook lists each wire as having resistance of Ro=.4028 ohms per thousand feet at temperature of 25C. The temperature coefficient of copper is alpha=.004 per C.
Draw a schematic diagram of a per-phase synchronous electrical, generator and define the components in the armature (stator) side of the diagram
Derive an expression for evaluating the measurement error, ?Terr = Ttip - T8,i, which is the difference between the tip temperature, T lip , and the water temperature, T8.i'
An FM receiver has a Foster Seeley discriminator that has a transfer ratio K = 0.03v/khz. If the maximum IF deviation is 75Khz, what is the maximum output voltage of the discriminator What is the minimum output voltage of the discriminator
Write a VHDL model of a negative edge-triggered T-type flip-flop. Write a VHDL model of a 10-state synchronous counter that asserts an output when the count reaches 10.
Suppose we have a 4Kword memory RAM with each word containing 32 bits. How many address bits and how many output bits are needed. Draw the block diagram of a negative edge-triggered JK FF which is asynchronously set by a 1 and asynchronously reset b..
Let Y1 denote the number of married executives and Y2 denote the number of never-married executives among the three selected for promotion. Assuming that the three are randomly selected from the nine available, find the joint probability function ..
Which part of the constitution states the six purposes of government
a mobile telelphone system mts has 10 channels operating at 30 khz with a max 80 kilometer range. what is the
We have a six-pole, 440-V-rms, 60-Hz delta connected synchronous motor operating with a constant developed power of 20 h p, unity power factor, and a torque angle of 10°. Then, the field current is reduced such that Br is reduced in magnitude by 2..
hat is voltage regulation of 3 phase bank if it delivers rated current at rated voltage and 0.9 lagging power factor? (b) What is the input line current, delta winding current, and wye winding current ifthe load is shorted?
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