Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
A 92in*24in*32in, 450kg Square D motor controller is used to drive a 1600 hp,2400V,3-phase,60Hz squirrel-cage motor. a. assumeing the motor has a minimum efficiency and power factor of 96%and 90%,respectively
Construct a truth table for a three variable function that includes minterms 1,4,6,7. Construct the corresponding K map and use it to find a minimal SOP expression for F.
Develop the VHDL text file for a binary down-counter to divide a frequency by 32. Use Q as the outputs and CLK as the falling edge clock input.
Using nodal analysis solve for the current and supemode used to solve this circuit is located between which two nodes?
(a) determine the contact resistor that can go on the base if the length of the contact is 10 * Wb. (b) Plot the change in conductance in relation to varying the doping from 1014/cm3 to 1018/cm3 at room temperature. Redo the graph at 77K;
Show that for wires of identical dimensions but made of different materials, such as copper and aluminum, the resistance is proportional to the resistivity of the material. the resistance of a certain copper wire is 1.5.
Design a system that repeatedly computes and outputs the sum of all positive numbers within a 512 word register file A consisting of 32-bit signed numbers.
If you have 1024 samples of a discrete-time band-limited signal sampled at a rate of 100MHz. what is the time period between samples. If you take a 2048 point FFT of the sampled signal, what will be the freuqency spacing between the output samples..
It will have vertical walls and be 15 feet wide. It will be 10 feet deep, have a slope of .0015 feet/foot, and a roughness coefficient of .014. How deep will the water be when 1000 cubic feet/second is flowing through the channel
A 12 bit ADC with Vref of 5V is used to digitize a sinusoidal signal a quiescent value of 2.5V and a p-p amplitude that is restricted to 1.5V p-p. What is the ENOB of this ADC with this input signal due to quantization noise
Calculate the composition of HgxCd1-xTe which can be used for a night vision detector with bandgap corresponding to a photon energy of 0.1 eV. Bandgap of CdTe is 1.6 eV and that of HgTe is -0.3 eV at low temperatures around 4 K.
Design an open-circuited, shunt stub matching network to match a 125 + j20 ohm load to a 700 MHz, 50ohm generator. Show the lengths of your transmission lines in fractions of a wavelength.
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd