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Two machines on speed-governor control are interconnected and supplying the same load, when the load suddenly increases such that the steady-state frequency deviation is 0.015 Hz. If both machines have a droop of 5% (R = 0.05), and machine A is rated at 250 MW while machine B is rated at 400 MW, compute the steady-state deviation in power for each machine.
The circuit also has a single bit output V. If the 4-bit input is not a valid 8421 BCD digit, V = 0; else V = 1. If V = 0, (the input is not valid) the gray code BCD outputs are don't cares.
Describe the filter that yields an AM signal for g (t). Give the necessary filter type and the frequencies of interest.
Mark on the diagram, the magnitudes and relative directions of the currents in the winding as well as in the input and output lines when delivering the rated kVA to load.
A source output consists of nine equally likely messages. Encode the source output using both binary Shannon-Fano and Huffman codes. Compute the efficiency of both of the resulting codes and compare the results.
Include the signal source and load and derive an expression for the overall gain
Assume we need to design a cellular system that covers an areaof Radius R=20 miles.For practical reasons (cost of BS , handoffcapability,etc.) ,each cell should cover at least an area of radiusr=1 mile.FDD is used and that each simplex channel re..
What is the inductance L of the primary of a transformer whose input is 220 V at 60 Hz and the current drawn is 5.8A? Assume no current in the secondary.
An air-standard Otto cycle has a compression ration of 9. At the beggining of compression, p1=100 kPa and T1= 300K. The heat addition per unit mass of air is 1350kJ/Kg. Determine. a) the net work, in kJ of air. b) the thermal efficiency of the cyc..
Given: The terminal pair of a hidden circuit has an open circuit voltage of 200 V. When a 50 k? resistor is placed across the terminal pair, a potential of 80 volts is observed. Required: Determine the terminal voltage that would result if the 50 k
A single-phase 50 Hz transformer has a voltage ratio of 230/2300 V. A capacitor rated 30 kVAR is connected on the 2300 V side. Calculate the value of this capacitor. What is the kVAR of the capacitor and the value of its capacitance as seen on 230..
The power factor of a load connected to a 120-V 60-Hz source is raised from 0.866 lagging to 0.966 leading by connecting a 110.5-?F capacitor in parallel with the load. Determine the load current I1 and the circuit current IT.
Construct a system of multiples reproducing the potential of a uniformly charged square plate of total charge q and side 2a so that the error in the potential does not exceed 0.1% at R > I0a, where R is the distance from the center of the plate.
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