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A single-phase load is fed through a 66-kV feeder whose impedance is 120 + j 400 Ω and a 66/6.6 kV transformer whose equivalent impedance (referred to LV) is 0.4 + j 1.5 Ω. The load is 250 kW at 0.8 leading power factor and 6 kV.
(a) Compute the voltage at the sending-end of the feeder.
(b) Compute the voltage at the primary terminals of the transformer.
(c) Compute the complex power input at the sending-end of the feeder.
A buck-boost converter works with an input voltage of 12 V and switching frequency 10 kHz. The load resistance of 24 Ω requires doubled input voltage. The inductor and capacitors are 1 mH and 100 μF, respectively.
Write a function printBinary() that displays the number of bits used VB2010. Using 'sizeof()' if the user enters and int 17 the function should display 000000000000000000000000000010001.
The antenna current of an AM transmitter is 8A when only the carrier is sent, but it increases to 8.93A when the carrier is modulated by a single sine wave. Find the percentage of modulation.
Consider two three-phase transformers, the first transformerhas a delta connection on its primary side and a wye connection onits secondary side; whereas, the second transformer has a wyeconnection on its primary side and a delta connection on its..
build a cicuit that must be able to operate a 3 amp load of the LED while being able to operate at voltages around 3V or 6V. It must be able to keep the LED on constantly while also being able to pulse the LED.
Discuss the possible difficulty of such an approach.
Discuss the differences between series and parallel circuits. What are some advantages and disadvantages of each type Discuss why the total power equals the sum of the individual values of power, whether a series circuit or a parallel circuit is u..
Assume no phase shift between the current components and their corresponding voltages. Compute the load power.
Draw the sequence networks for this power system and draw the sequence networks with connections resulting from this fault and solve for the fault current.
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.
Consider the best possible heat engine working in air at 25°C. The engine continuously converts heat from a source at 300°C to work, and heat is continuously transferred into the engine at a rate of 100 kJ/s.
Consider a causal continuous-time LTI system whose input x(t) and output y(t) are related by the following differential equation: dy(t)/dt + 4y(t) = x(t). Find the Fourier series representation of the output y(t) for each of the following inputs
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