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Two three-phase wye-connected loads are in parallel across a three-phase supply. The first load draws a current of 20 A at 0.9 power factor leading, and the second load draws a current of 30 A at 0.8 power factor lagging. Calculate the following:
a. The transmission line current
b. The power factor of the load
c. The real power supplied by the source if the line-to-line voltage of the transmission line is 400 V
An industrial heater has a nameplate which reads: 210 V 60 Hz 12 kVA 0.78 pf lagging
Simulating shadow fading. Simulate a sample path of a shadow fading process for equispaced samples on a straight line. Assume a correlation distance Dc = 500 m and a standard deviation of σz = 7.5 dB (these values are from Gudmundson's paper).
Using a 500 Ohm resistance, design an RC low-pass filter that would attenuate a 120-Hz sinusoidal voltage by 20 dB with respect to the DC gain.
In order to measure the heart rate of the patient, you acquire 8000 datapoints at the Nyquist sampling interval. What is the spectral resolution of the frequency spectrum resulting from these data?
paper on the use of one of the primary resources - Include the role that your chosen resource plays in power generation, along with any pros or cons of its use.
(b) Find and list all essential prime implicants of the F function. (c) Find the minimal two level NAND gate implementation of the F function. Find the gate input cost. (d) Find the minimal two level NOR gate implementation of the F function. Find th..
A 500-kVA, 60Hz, 5000V, Y-connected, 10 pole synchronous has internal parameters of Armature Resistance 1ohm amd Synchronous Reactance 10ohms. The generator is operating at rated values and 0.9 pf leading.
A Si IMPATT diode is operated at 140 GHz with a dc bias of 15 V and an average biasing current 150 mA. (a) If the power conversion efficiency is 25% and the thermal resistance of the diode is 4OoCnV.
A self-excited DC shunt generator is delivering 20 A to a 100-V line when it is driven at 200 rad/s. It is known that Ra=1.0 ohms and Rf=100 ohms. When the generator is disconnected from the line, the drive motor speeds up to 220 rad/s
A sine wave has a peak amplitude of 2V and a frequency of 100Hz. Calculate the instantaneous voltage at a time of 250 micro seconds after the waveform passes through the 0-V baseline in a positive direction.
in this project we will consider the control of a synchronous generator supplying electricity to the grid. we will
If the motor is connected cumulatively compounded as shown in Figure and if Radj = 175 Ω, what is its no-load speed? What is its full-load speed? What is its speed regulation? Calculate and plot the torque-speed characteristic for this motor.
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