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In a balanced three-phase system, the source has an abcsequence, is Y-connected, and Van=120<20 ° V. The Source feed two loads, both of which areY-connected. The impedance of load 1 is 8 + j6 Ω/φ. Thecomplex power for the a-phase of load 2 is 600<36 ° VA.Find the total complex power supplied by the source?
If voltage and resistance are measured as a means of indirectly measuring power, show again that if the relative uncertainties in the direct measurements are +2%, that the relative uncertainty in the indirectly measured power will be +6%.
Consider the causal LTI system with system function H(s)=Y(s)/X(s)=1/(s+2)^2 If the input is x(t)=sin(2t) for t>0, find an approximate expression for the response y(t) that is valid for large t.
When you get to work one day you see that the station is delivering 6.0 MW of power with a power factor cosf=0.9. What is rms current. How much capacitance you should add in series to bring the power factor to 1.0. How much power the station will b..
An n+p junction with a long p-region has the following properties: Na=10^16 cm-3, Dp=13 cm2s-1, µn=1,000 cm2V-1s-1, tn=2×10-6 s. If we apply 0.7 V forward bias on the junction at 300 K, what is the electric field in the p-region FAR FROM the junct..
Three single-phase transformers, each rated 15 MVA, 13.2:66 kV, with a leakage reactance of 0.1 pu, are connected to form a three-phase Y-Δ bank, one side of which is connected to a 120-kV tranmission line and the other side, to three 12-ohm resis..
The circuit elements have parameter values L1= 1H, L2=1H, C = 1F, and R = 2.5+(0.5x0.244) ohms. The resistor value is then between 2.5 and 2.9995 ohms. Using Kirchhoff's voltage and currents laws, derive the 3thorder differential equation for vo(t)..
1- If the diameter of a spherical water droplet is 100.0 µm, how much energy is required to increase the diameter of the water droplet by 3.0 µm The surface tension of water is 1.0 x 10-3 J/m2. 2- A metal crystallizes in a face-centered cubic lat..
Determine which waveform in each pair is lagging: a) 6 cos(100πt-1000) and -6 sin (2π60t+1300)b) cos(10t-1000) and - cos(t-1000) c) cos (50πt - 1000) + cos (50πt - 200) and 9 cos (100πt - 200)
Build a 1Gbps link as long as possible without regeneration. Assume a transmitter power of 1mW and a receiver sensitivity of -30dBm for a BER of 10^(-9). The dispersion at 1.5 micron is 20 ps/km.nm, and the attenuation is 0.25 dB/km.
An engineer decides to take 600 samples at sampling frequency 9000Hz. A Fast Fourier Transform (fft) program was applied to obtain the frequency spectrum of the signal. What is the frequency resolution,df, for the analysis
If 15 newtons of force is applied to a surface and the pressure is measured as 4,000 Pascals, what is the area of the surface in units of square meters
The reliability of a certain automatic cutoff device is assumed 11/12. What is the reliability of a system consisting of 4 such devices so arranged
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