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a 2,200-V, 1,000-hp, three-phase, 60-Hz, 16-pole, wye-connected, wound-rotor induction motor is connected to a 2,200-V, three-phase, 60-Hz bus that is supplied y synchronous generators. The per-phase equivalent circuit has the following parameters: R1=.1 ohms=R'2; xl1=0.625 ohm=x'l2; xm =20 ohms.
If the machine is driven at a speed of 459rpm 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 would be the minimum sample rate needed to adequately acquire an EKG signal Note that this problem is not as simple as it appears to be, because while the fundamental frequency may be relatively low, artifacts in the EKG may be at frequencies..
Inflation in years 1-5 equals 3.1 percent, 2.2 percent, 1.6 percent, 1.3 percent, and 1.1 percent, respectively.
Write an instruction sequence to subtract the 4-byte number stored in memory locations 0x10-0x13 from the 4-byte number stored in memory locations 0x00-0x03 and store the difference in memory locations 0x20-0x2
What is the maximum symbol rate which can be sent over this link? If a binary line code is used, what is the maximum bit rate? What is the maximum bit rate with 4-ASK symbols?
A 4 pole 50 kW dc machine has a value of Ea = 110 V at 1100 rpm. What is the induced voltage is the speed is increased 20%. Note: omega(w) = (2f*n)/60 where omega is in rad/sec, and n is in rpm
Design a RC phase shift oscillator that makes a pure sine wave (no clipping or other distortions) at a frequency of 10 kHz. Output voltage should be 9 V pp. Design a differential amplifier with Icq = 0.5 mA in each BJT and Difference mode gain = 40..
A square cross section, air filled toroid has Inner radius 12 cm. outer radius 14 cm. and thickness 2 cm. How many turns are required to produce an inductance of 1 mH
a) Determine the self inductance of coil 1, L11 b) Determine the self inductance of coil 2 L22 c) Determine the mutual inductance between the two coils, L12 or L21
In region 1, defined by z>0, there is a magnetic field of H= 4.8x ˆ 6y ˆ +8z (A/m) and the relative permeability is 50. Determine the magnetic flux density B in region 2, z
The input, Vin, is differential not single-ended. Design an analog circuit with a transfer function of Vout = 50 Vin + 2.5 powered by a single +5 V supply. You may use any of the analog chips.
Suppose a random process is X(t) = A[cos(2fot + T)] where A and Fo are constants and T is a random variable that is uniformly distributed over [0, 2p]. 1. Is X(t) wide-sense stationary 2. Find power spectral density of x(t).
A. find the sixtieth percentile B. Find the seventy fifth percentile C. Determine the number of data points that fall between the sixieth and seventy fifth percentiles you found in parts A. and B.
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