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The plant capacity of a 3-phase generating station consists of two 10,000 kVA generators of reactance 12% each and one 5000 kVA generator of reactance 18%. The generators are connected to the station bus-bars from which load is taken through three 5000 kVA step-up transformers each having a reactance of 5%.
Determine the maximum fault MVA which the circuit breakers on (i) low voltage side and (ii) high voltage side may have to deal with.
A simple RC filter is to be designed to pass frequencies below a nominal value of 40 Hz. If the attenuationat 40 Hz is to be 5 dB, determine suitable values of R and C for the filter.
For each network of given figure, find the value of R for maximum power to R. - Determine the maximum power to R for each network.
A video system can accept video from one of two video sources, but can only display one source at a given time. Each source outputs a stream of digitized video on its own 8-bit output. A switch with a single bit output chooses
Design an npn current mirror for this purpose. Neglect the base curents.
description in the process of processor development functional verification is a crucial step that must be conducted
Should government tax breaks and other subsidies for fossil fuels and nuclear power be phased out and replaced with subsidies and tax breaks for improving energy efficiency and renewable energy alternatives. Explain
Note: Structures for the compounds in Problems 2.3, 2.8, and 2.9 can be found in the Merck Index, but are not required to solve the problems.
Design a frequency divider cicuit that will produce the following three ouput signal frequencies: 1 MHz. 800 kHz, and 100 kHz. Use 74HC160 and 74HC161 counter chips and any necessary gates. The input frequency is 12 MHz.
Three single phase transformers are used to form a three-phase transformer bank rated 13.8kV (delta)/120kV (wye). One side of the transformer bank is connected to a 120kV transmission line
Develop a sequential circuit with a single data input S and a single data output Y. The output is 1 when the input value in the current clock cycle is different from the input value in the previous clock cycle, as shown in the timing diagram in Fi..
Pick two functions, x1(t) = cos(w1t) and x2(t) = sin(w2t) where w1 and w2 are dierent frequencies (to make life easy you should probably select these frequencies such that their ratio is a rational number). By hand, solve for the Fourier Transform..
A shunt dc motor has RA= .1 ohmn and VT = 440 V. For an output power of 50 hp, we have nm=1500 rpm and IA = 103 A. The field current remains constant for all parts of this problem.
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