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Three single-phase, two-winding transformers, each rated 450 MVA, 20 kV/288.7 kV, with leakage reactance Xeq = 0.10 per unit, are connected to form a three-phase bank. The high-voltage windings are connected in Y with a solidly grounded neutral. Draw the per-unit equivalent circuit if the low-voltage windings are connected
(a) in Δ with American standard phase shift,
(b) in Y with an open neutral. Use the transformer ratings as base quantities. Winding resistances and exciting current are neglected.
Fifteen kg of the carbon dioxide (CO2) gas is fed to a cylinder having a volume of 20 m3 and initially containing 15kg of CO2 at a pressure of 10bar. Later a pinhole develops and the gas slowly leaks from the cylinder. Determine
Discuss the sequence of events that occur when an interrupt is detected. Discuss the key features of the 8259A. Include what it is used for, what it contains, etc.
A soil has a coefficient of permeability of 5.0 dday at 25°C. What is the standard coefficient of permeability of the soil in corresponding units and in 1/day/m2?
A medical facility treats non-emergency patients. Patients arrive according to an exponential interarrival time with a mean of 15 minutes. Upon arrival they check in at a registration desk staffed by a single nurse. Registration times follow a tri..
A convolutional encoder has a single-shift register with two stages, (i.e., constraint length K = 3), three modulo-2 adders, and an output multiplexer. The generator sequences of the encoder are as follows:
1. (TCO 4) What is the minimum number of bits required for a DAC that can span 12V with a resolution of 20 mV or less?
Design, simulate, and test an Audio Amplifier which delivers one of the above power outputs to an 8? speaker load. The output power of your design and the input signal of your design must be selected from the above list.
After reviewing the materials of this week, please answer the following question. Is there a relationship between the sign (positive or negative) of the slope of a line and the angle the line makes with the x-axis?
The requirements for the frequency resolution of the system specify that the largest allowable main lobe for the Kaiser window is p/100. What is the best side lobe attenuation expected under these constraints?
Please plot the solution gas oil ratio and instantaneous gas oil ratio with pressure relations, and explain the changes alone the instantaneous GOR plot
Formulate a linear programming model for this problem. Define decision variables, and then define your constraints and objective function accordingly.
Find the set of rationalizable strategies
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