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A three-phase, 318.75-kVA, 2300-V alternator has an armature resistance of 0.35 /phase and a synchronous reactance of 1.2 /phase. Determine the no-load line-to-line generated voltage and the voltage regulation at
(a) Full-load kVA, 0.8 power factor lagging, and rated voltage.
(b) Full-load kVA, 0.6 power factor leading, and rated voltage
The controlled variable in a closed-loop system is the direction of a robot arm. Initially it is at 50o; then it is commanded to go to 15o. When the error is 10o for the first time, what is direction of the robot arm
A single-phase overhead transmission line consists of two solid aluminum conductors having a radius of 2.5 cm, with a spacing 3.6m between centers. a)Determine the total line inductance in mH/m.
A current source of 12 cos 2000t A, a 200-ohm resistor, and a 0.2-H inductor are in parallel. Assume steady-state conditions exist. At t = 1 ms, find the power being absorbed by the (a) resistor; (b) inductor; (c) sinusoidal source.
Describe the functionality of the above DFSM using transition tables. Consider that the system starts always from state B. What happens if the system will start from another state - say A?
A circular polarized wave in air is incident on glass surface. The angle of incidence equals the Brewster angle. Refractive index of glass, n(glass) is 1.35. Find the following quantities 1) The Brewster angle. 2) The angle of refraction
Compute the first 10 samples of the step response for the nonrecursive difference equation: y(n) = x(n) -0.5x[n-1]-0.7x[n-2] Indentify which of the following filters are recursive and which are nonrecursive.
Sam (75 ) takes off up a 50--high, 10 frictionless slope on his jet-powered skis. The skis have a thrust of 200 . He keeps his skis tilted at 10 after becoming airborne. How far does Sam land from the base of the cliff
Determine the response of the system when aunit step is applied at input.
design a multirange ammeter with ranges of 1-10mA,0-100mA, and 0-1500mA, using a 5mA movement whose internal resistance is 3.8ohms. draw a circuit diagram of the meter.
Control Systems and Laplace Transformations, What is the step response of a system whose transfer function has a zero at -1, a pole at -2 and a gain factor of 2?
The open circuit voltage of the battery is 1.493 V. When a 100 resistor is connected across it, its measured voltage is 1.356V. Find its approximate Thevenin resistance and draw a model for the battery.
Consider two signals that have the same frequency. When the amplitude of the first signal is at its maximum, the amplitude of the second signal is at half its maximum from the zero level. What is the phase shift between the two signals
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