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A 2200-V, 1000-hp, three-phase, 60-Hz, 16-pole, wye-connected, wound-rotor induction motor is connected to a 2200-V, three-phase, 60-Hz bus that is supplied by synchronous generators. The per-phase equivalent circuit of has the following parameters: R1 = 0.1 = R 2, Xl1 = 0.625 = X l2, and Xm = 20 .Ifthe machine is driven at a speed of 459 r/min to act as a generator of real power, find the rotor current referred to the stator and the real and reactive power outputs of the induction machine.
What is meant by polling? In polling schemes, a set of address lines is driven by the controller to address every of the masters in sequence. When a bus request is received fro
Q. Write a short note on the frequency response of a R-C coupled amplifier. At low frequencies ( , the reactance of coupling capacitor Cc is quite high and hence very small pa
EXPLAIN UJT WITH ALL SUBTOPICS CONSISTS
Q. Show Binary Coded Decimal Number System? If we analysis single digit values for hex, the numbers 0 - F, they represent the values 0 - 15 in decimal, and occupy a nibble. Fre
Question: Figure shows the basic circuit of the BJT Common Emitter Amplifier. (a) What is the function of RB, RC, Ci, Co and CE ? (b) (i) Sketch the d.c. equivalent circu
Describe properties of the conducting materials . Conducting materials are classified by low resistivity materials and high resistivity materials. Low resistivity mater
Prepare the assembly code to make a Digital Volt Meter that shows the message and the correct voltage on the LCD. Once you managed to display the hex value for the conversion you w
Q. What do you understand by demagnetizing and cross magnetizing effects of armature reaction in a d.c. machine. Derive the expression for calculation of demagnetizing and cross
if the sheet resistance of a tin oxide is 100 ohms, what is the thickness of the oxide layer?
In the magnetic circuit shown in Figure (a) the coil of 500 turns carries a current of 4 A. The air-gap lengths are g 1 = g 2 = 0.25 cm and g 3 = 0.4 cm. The cross-sectional are
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