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a) Two generators with ratings 100 MW and 300 MW operate at 50Hz frequency. Thesystem load increases by 100 MW when both the generators are operating at abouthalf of their capacity. The frequency then falls to49.5Hz. Ifthe generators are to share the increased load in proportion to their ratingswhat should be the individual regulations? What should be regulations if expressedin per unit megawatt?
b)A 100 MVA synchronous generator operates initially at 3000rpm,50Hz. A 25 MWload is suddenly applied to the machine and the steam valve to theturbine opensonly after 0.5 sec due to the time lag in the generator action. Calculate the frequencyto which the generated voltage drops before the steam flowcommences toincrease to meet the new load. The value of the stored energy forthe machine is5kW-sec per KVA of generator energy. Also calculate the value of Hconstant forthe generator.
write a VHDL module for the parallel-in, parallel-out right-shift register of figure 12-10 (page 360), but add an active-low asynchronous clear signal ClrN. Do not use individual flip-flops in your code. simulate the module to obtain a timing diag..
Through a three-phase transmission line, a three phase symmetrical load is supplied from a power system bus. The parameters per phase of the transmission line are: R=5 ohms, X=70 ohms, B=9*10^-4 ohms.
A system is required that represents 0 to 100 volts in a 10 bit code. What is the voltage increment that is represented by the LSB of this code.
Describe the type of response that would exist if the values of Kp and Ki placed the roots on the boundaries determined in part 1. Note consider each boundaries may exhibit a different performance
A µ-law compression encoder has: Vi(max) = 8 V, vi(max) = 1V, µ = 255 Determine the output voltage for an input voltage of 2 V
Your new assistant has measured the signal coming from a piece of test equipment, writing v(t) = Vxe(-2+j60)t, where Vx = 8-100V. (a) There is a missing term, what is it and how can you tell it's missing (b) What is the complex frequency of the si..
The system uses a 7-cell reuse pattern. If the offered traffic per user is 0.03 Erlangs and the average number of calls per hour per user is 1.5, for an Erlang-C system with a probability of delaying a call being 5%, calculate the traffic load per..
1. Sketch the polar plot of the frequency response for the following loop transfer functions: Gc(s)G(s) = 1 / ((1 + 0.25s)(1 + 3s)) Gc(s)G(s) = 5(s^2 + 1.4s + 1) / (s - 1)^2 Gc(s)G(s) = (s - 8) / (s^2 + 6s + 8) Gc(s)G(s) = 20(s + 8) / (s(s +2)(s + 2)..
A three-bit Johnson counter is clocked with pulses at a 120 MHz rate. What will be the pulse frequency of the output of the last flip-flop in the chain. Ten pulses are applied to a four-bit asynchronous counter. If the counter state was 0000 befor..
A tire is rolling along a road, without slipping, with a velocity v. A piece of tape is attached to the tire. When the tape is opposite the road (at the top of the tire), its velocity with respect to the road is.
Presuming that oscillations in wavefunction amplitude lead to oscillations at the same frequency in the charge density, and that the charge density at any point in the structure give rise to radiated electromagnetic radiation at the same frequency
A pulse compression radar transmits rectangular chirp pulses with bandwidths of 500 MHz. What is the approximate slant-range resolution after Dolph-Chebyshev frequency weighting that results in 30-dB sidelobes
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