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a three-phase,four pole,480 V,60 Hz,Y-connection slip-ring induction motor has the following parameters: R1=R'2=0.5 ohm ; X1+X'2=5 ohm.
compute the starting torque and inserted rotor resistance that increases the starting torque by factor of 4.
What causes the current gain to decrease both in the case of a low collector current and at a high collector current?
A synchronous generator rated 1350 MVA at 0.9 pf, 22.5-kV, Xs=11.6% is connected to a power system through a 1500 MVA, 7.9% 24-kV/230-kV generator step up transformer. The power is generated into a 230-kV system.
Write a program to create an array initialized with Hex digits in the ROM space. The main code should copy this array to a different array in the RAM space.
Using data from the data sheets of the MAX505 DAC, and the various temperature coefficient of DAC errors specified at 25 degrees Centigrade, calculate the total Worst Case Error for a temperature deviation of 45 degrees Centigrade.
The 3phSM is used in a pumped storage application which has a head of 250 m. When pumping or generating, it operates at 84% efficiency, rated stator conditions. Determine the turbine flow when (1) generating and (2) pumping.
Determine log10 0.2 = log10 18/90, and compare to log10 18 - log10 90.
Will the electric field inside change (how much if yes)? Will the stored energy in the capacitor change (how much if yes)?
A 300 ohms resistor is connected across the 300 ohms antenna input of a television receiver. The bandwidth of the receiver is 6 MHz, and the resistor is at room temperature (20' C). Find the noise power and noise voltage applied to the receiver in..
A unipolar 16 bit ADC measures 0-10 volts full scale. a) What is the minimum resolvable voltage b) What is the percent quantization error c) What is the percent quantization error if a 1 volt max signal is input
A single-loop negative feedback system has the loop transfer equation: L(s)=Gc(s)G(s)=K(s+2)^2 / (s(s^2+1)(s+8)) a. Sketch the root locus for 0 K infinity to indicate the significant features of the locus. b. Determine the range of the gain K for whi..
The fiber has a loss of 0.25 dB/km, and there is a splice with a loss of 0.1 dB every km. The coupling loss at the receiver is 0.5 dB, and the receiver uses an InGaAs APD with a sensitivity of -39 dBm. Find the system margin.
Please explanation how a Parallel RLC Filter circuit behave at Low Frequencies, Resonant Frequency and High Frequencies
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