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Three single phase transformers rated at 100kVA, 13.2kV / 2.4kV are connected in wye -delta on a 3 phase, 18kV line. What is the maximum load that can be connected to the transformer bank?
if a balanced, three-phase, 15MW total load is fed by a 138Kv power line at a 0.85 lagging power factor, determine the following. (a) The line current (b) The value of the capacitor in uf per phase, is a wye-connected capacitor bank is used to cor..
What approximate minimum BER is required for voice signals, data signals and what is the approximate BER level for the optical fiber systems ?
The motor driven by a switch-mode dc-dc converter, which has a bus voltage of 200V. The switching frequency fs = 25 kHz. Calculate and plot the waveforms for va(t), ea(t), ia(t), and id(t) under the following conditions
(a) Determine the mean, variance, and standard deviation of X. (b) Determine the value for x such that P(-x
A long straight metal wire of radius r1= 2.20E-2 m is surrounded by a metalic cylindrical shell of inner radius r2= 1.24E-1 m and outter radius r3= 1.91E-1 m. The axes of the wire and the cylindrical shell coincide.
1 To double the corner frequency in the low-pass and high pass two-pole filters, how would you change the values of the resistors and capacitors .2 Compare the one pole RC filters used in an active setup versus the passive setup
What effect do internal capacitances in the transistor model have on practical performance of a real system? How would you use these model values to predict system performance?
The output of an exclusive-NOR function is false only if exactly one of the inputs is true. Show the truth table of a two-input exclusive-NOR function, and implement it using AND gates, OR gates and NOT gates.
A pulsar lies 1000 light years from Earth. The average plasma concentration is 1 el/cc. Using the plasma dispersion relationship for group speed, what is the group delay between a pulsar pulse received at 1 GHz and at 800 MHz
what is the perceived colour if you mix red ,green and blue dyes in equal proportion and why What about red and green frequiencies only
A three phase synchronous motor has the synchronous reactance of 2.1 Ohm and draws 250 A with a lagging power factor for an excitation voltage of 1327 -15 degree per phase. Find the terminal voltage of the motor and power factor of the motor.
Plot the signal x(n) 0
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