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An 8 pole, three phase 50kVA, 220V, Y connected synchronousgenerator has a synchronous reactance of 4.8ohms per phase andoperates in stand-alone. Neglect all loses. The field voltage isadjusted to give rated voltage across the output terminal at no-load. Compute:a) the output voltage when rated load with power factor equal to 0.8 is connected to the generatorb) the change of excitation current(%) required to regulatethe load at rated value. Assume that the machine operates in the linear region of the magnetization curve.
determine whether a three-bit number, a3, a2, a1, is equal to another number, b3, b2, b1, or if it is greater than that number. (We do not need an output for less than.) a. Show how the 7485 would be connected to accomplish
An amplifier with a voltage gain of +40 dB, an input resistance of 10 k ohms and an output resistance of 1 kohm is used to drive a 1 k ohms load. what is the value of Avo. Find the value of the power gain in decibels.
A load ZL is connected to the secondary of a linear transformer that is characterized by inductance's L1 = 1 H and L2 = 4 H and a unity coefficient of coupling. If w(omega) = 1000 rad/s, find the equivalent series network (R, L, and C values) seen..
Three cells whose open-circuit voltages are each V are connected in series. What is the open circuit voltage of the series connection If the same three cells were connected in parallel
Why does the Thevenin's technique work only for circuits with linear elements (or at most a single non-linear resistor). Figure out where the mathematics of the theorem breaks down for non-linear elements and why
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
If the motor is driving a load whose torque requirement remains constant at 3Nm, independent of speed. Calculate the armature voltage Va to be applied in steady state, if the load to be driven at 1500RPM.
If you have an M/M/Infinity system with arrival rate lambda and service rate mu(µ), how would you show that the expected number of packets in the queue is equal
The noise voltage in an electric circuit can be modeled as a Gaussian random variable with 0 mean and 10^-4 standard deviation (a)What are the probabilities that the value of the noise exceeds 10^-4 and 4*10^-4
Two marbles are rolled towards each other. One marble (m1 = 4.2 g) has a speed of 5.1 m/s towards the right. The other marble (m2 = 6.1 g) has a speed of 3.8 m/s to the left. After the collision, the first marble moves to the left at a speed of 3...
a circuit with a resistor is connected to a DC supply and a Current of 2A and producing a heat. What is the rms Voltage that must be applied by a AC supply to produce 3 times this heat if all other conditions remain the same
Find the values of I and V for the circuits assuming diode are ideal. Consider Vin=0,2,6, and 10V. Also plot V vs. Vin for Vin ranging from -10V to +10V
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