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1. The following sequence voltages were recorded on an unbalanced fault:
Given that the positive sequence fault current is j1, calculate the sequence impedances. Assume E = 1.
2. The positive sequence current for a double line-to-ground fault in a system is -j1 P.u., and the corresponding negative sequence current is j0.333 p.u. Given that the positive sequence impedance is 0.8 P.u., find the negative and zero sequence impedances.
what happens when the electrical motor runs on different frequency from the designed for ex: an electrical motor is designed to run on 50 Hz frequency but the supply provided on 60 Hz , then what will be the consequences?
Time to failure in months, X Fx(x) = (1 - e ^(-x/5))u(x) for plant A Fx(x) = (1 - e ^(-x/2))u(x) for plant B Plant B produces three times as much as plant A. What is the probability that a bulb purchased at random will burn at least
he circuit is excited by a full-wave, ac/dc SCR converter. The ac voltage (input to the converter) is 120 V (rms), and the circuit resistance is 5 Ohm. At a trggering angle of 30 degrees, the load current is continous . Calculate the following
Find H[k], the 10 point DFT of h[n] and compute the output response of the system y[n], 0 ≤ n ≤ 4, using the convolution sum.
Determine the ROM size and contents to implement a function which converts a sign and magnitude number from -5 to +6 to two's complement format.
efficiency in a power transformer is 98.6 when loaded such that its core losses equal the copper losses. calculate
The transformer is to be used on a 50 Hz system, with the restriction that it maintain the same maximum core flux and the same total losses. Determine (a) the new voltage rating; (b)the new kVA rating.
Identify one or more experience goods. Identify one or more search goods. How does the retailing of experience goods differ from the retailing of search goods? Do these differences help consumers?
An enhancement-type NMOS transistor with Vt=2V has its source terminal grounded and a 3-V dc source connected to the gate. In what region of operation does the device operate for (a) VD=+0.5V
The switch in the circuit has been in position a for a long time. At t=0 the switch is moved to position b. A.Calculate the initial voltage on the capacitor ifv = 200V , and i = 1.9mA . B. Calculate the final voltage on the capacitor. C. Calculate t..
Find the inverse z-transform, x(n), of the following functions by bringing them into a form such that you can look up the inverse z-transform from the tables. This will require some algebraic and /or trigonometric manipulation/calculation.
What is the Gain dB? I thought dB=20 log (Vout/Vin) This would lead me to believe that it should be 20 log (1.99/1) = 5.98 dB...I am being told the answer is -0.44 dB. What is my problem
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