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A Three-phase generator step-up bank transformer is rated 1000 MVA, 13.8 kV Y/500kV; with Zeq 4.38 pu. the Generator/step-up transformer feeds a load of 345kV rated. As typical in practice, the transformer taps are adjusted in steps, with each step changing the tap ratio by 0.625%. Because of the varying voltage drops caused by changing loads. LTCs should be operated to regulate the bus voltage. What is the minimum current in the transmission line for 500MW/100Mvar load?
consider a message signal m(t)= e^(-2t) cos(2000*pi*t) u(t) a) determine the minimum step size E necessary to avoid slope overload b) calculate the minimum avaerage quantazation noise power based on part a
Two concentric cirlces have radii of 5cm and 48mm. A particle traveling at 0.25 m/s smashes into the inner surface of the outer sphere. If the potential of the spherical capacitor is 50 V, what is the magnitude of charge picked up by the particle
The input output relation of a non-linear system is y(t) = x2(t), where x(t) is the input and y(t) is the output. a. The signal x(t) is a band limited with a frequency max( max) = 2000*pi rad/sec. Determine if y(t) is also a band limited, and if so..
Assume you are performing 2's complement arithmetic in a computer with 8-bit registers. After the following code is run, signed char a = -17, b = 120, c; c = a - b; What is the binary and decimal value of c
How many volts must be applied to a 3- ohm resistor to result in a power dissipation of 752W 3) A 0.27-k ohm resistor is rated 2W. Compute the maximum voltage that can be applied and the maximum current that it can carry without exceeding it..
The rate of production of ATP in the cell is about 10 million molecules per second. The steady-state number of ATP molecules in the human body is about 0.1 mol. The number of cells of a human body is approximately 1014.
A bar magnet is cut into 2 parts ,one part is kept over the other so that the pole c2 is above c1. IF M is magnetic momentof the magnet. What will be magnetic moment of the combination
The maximum decoded voltage at the receiver is ±2.56 V. If a minumum dynamic range of 46 dB is required, for an arbitrary analog signal, calculate the minimum sample rate, the minimum number of bits used in the PCM code, and the resolution.
A heat pump maintains a dwelling at 68 F. When operating steadily, the power input to the heat pump is 5 hp, and the heat pump receives energy by heat transfer from 55 F well water at a rate of 500 Btu/min.
A continuous-valued signal had a probability density function that is uniform over the range from -8V to +8V. It is sampled and quantized into eight equally spaced levels ranging from -7 to +7.
If we wish to design a communication system which carries voice securely, we need to ensure that others cannot tap into the conversation. In digital transmissions, we can do this by encryption.
Charges +Q and +3Q are separted by a distance 2m. A third charge is located such that the electrostatic system is in equilibrium. Find the location and kthe value of the third charge in terms of Q.
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