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Suppose that a three-bus power system has the subtransient bus impedance matrix given below, and that the power system is initially unloaded with a pre-fault bus voltage of 0.98 pu. Assume that a symmetrical three-phase fault occurs at Bus 1, and find:
(a) The current flowing in the transmission line from Bus 2 to Bus 1 during the subtransient period.
(b) The current flowing in the transmission line from Bus 3 to Bus 1 during the subtransient period.
Important information about Frequency Divider, Design a frequency divider circuit that will output three pulse frequencies: 25 kHz, 10kHz, and 2.5kHz. Assume that only a 150 kHz CMOS compatible signal is available for the divider input
Three zero mean, unit variance random variables X,Y, and Z are added to form a new random variable, W = X + Y + Z. Random variables X and Y are uncorrelated, X and Z have a correlation coefficient of 1/2
design a regulated poewr supply with these specs Output a dc voltage of 10 V Load Variation: 0.3 -10000ohms Ripple Factor: less 0.1% for 2000ohms load
From a simple pn junction diode, predict the expected relative magnitudes of ac capacitances in a bipolar junction transistor under normal operating conditions(base emitter junction forward biased and base collector junction reverse biased).
Design a CE amplifier with gain of 10 using a 2N3906 transistor and a 20V power supply. Calculate the required resistor and capacitorvalues for the circuit, assuming a minimum frequency of 10 Hz.
The courses offered are usually of two types: practical, such as woodworking, word processing, and car maintenance; and humanistic, such as history, music, and fine arts. To satisfy the demands of the community, at least 10 courses of each type mu..
Let the filter length be 7 or 8. Design four different filters: Type I, Type II, Type III, and Type IV. Derive the equations for the ideal impulse response for these filters. Then multiply the ideal impulse response by the appropriate window funct..
For most low reluctance materials currently available and used in practical magnetic devices such as transformers, the slope of the BH curve may be always be considered constant over the possible range of operation of the device.
Fuel cell systems that also utilize the heat produced can achieve efficiencies approaching 80 percent , more than double of the gas-turbine based electruiical generation . Assume that 25 million houuseholds produce an average of 5 kw.
what are some good examples of test equipment that is available for use in diagnosing and repairing communications
Design an up / down counter with four states (0, 1, 2, 3) using clocked J-K flip-flops. A control signal x is used as follows: When x = 0 the machine counts forward (up), when x = 1, backward (down).
Draw a schematic diagram of a per-phase synchronous electrical, generator and define the components in the armature (stator) side of the diagram
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