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A four-pole three-phase synchronous generator has Xs = 1.82 per unit and ratings of 60 Hz, 24 kV, and 650 MVA. The generator operates at the following point: 60 Hz, armature voltage of 24 kV, output apparent power of 650 MVA, and power factor of 0.900 lagging.
1. Calculate the output power in MW and per unit, the output reactive power in MVAr and per unit, the armature current in A and per unit, and the excitation voltage Eaf in per unit. Sketch the phasor diagram.
2. Repeat problem 1 but change the power factor to 0.900 leading, holding all else the same.
In other words, your approach should be able to answer the question whether two BDDs are complements of each other, without using the complement operation.
If the battery is replaced with a 6 Volt battery it was experimentally determine that the no load speed is reduced to 120 rpm. For this situation, determine a new equation for angular velocity,(in rad/sec) versus Torque (in Nm).
Use z transforms to find the ZIR yZI(k), the ZSR yZS(k), and the complete response y(k) for each system. (E+0.5){y(k)} = 0, y(0) = 0. (E2-3E+2){y(k)} = us(k), y(0) = 2, y(1) = 0. (us(k) = unit step sequence.)
A single-phase 240/120 V transformer has the following parameters: R1 = 1 ohm, R2 = 0.5 ohms, X1 = 6 ohms, X2 = 2 ohms, Ro = 500 ohms & Xo = 1.5k ohms. (a) Load voltage referred to the primary side (b) Currents of the primary and secondary windings
Determine the relative permittivity of the dielectric, the maximum and minimum electric field intensities in medium 1 and the electric field intensity in medium 2.
Develop a state diagram for a sequential circuit that has two input terminals (W and X) and two output terminals (Y and Z). When three consequtive 1's are detected on W, Y will become 1.
the capacitance varies depends on the distance of the two plates from 0 to about 20in. this model is needed to generate an input to an other part of the circuit to simulate it and obtain the output in PSPICE.
Design a second-order band-pass IIR filter with center frequency of 450 Hz when the sampling frequency is 2,000 Hz. In order to ensure the filter stability, set the poles at 0.96 radial distant from the origin
For example, if the time given is 10213 seconds, the function will give back 2 hours and 50.22 minutes. The function shall not print the results to console, but instead pass them back to the calling function.
The solutions to Schrodinger's wave equation for a particular situation is given by Psi(x) = sqrt(2/ao)*e^-x/ao. Determine the probability of finding the particle between the following limits: (a) 0
Design a combinational logic circuit which has one output Z and a 4-bit input ABCD representing a binary number. Z should be 1 iff the input is at least 5, but is no greater than 11. Use one OR gate (three inputs) and three AND gates
n a symmetrical T attenuator pad, each series arm has a resistance of 35-ohm and the shunt arm has a resistance of 110. Determine a. the characteristic impedance b. the insertion loss when feeding a matched load c. the A B C D constants of t..
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