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A 3-phase, 600 kVA synchronous generator has a rated line voltage of 3300 V. The stator winding is star connected and has a resistance of 0.37 0/phase. Its synchronous impedance is 4.3 0/phase. a) Draw the synchronous generator's per phase voltage and current phasor diagram. b) Calculate the per phase output voltage. c) Determine the voltage dropped across the synchronous impedance. d) Calculate the synchronous generators voltage regulation and output power for full loads having power factors of: Unity and lagging.
Two charges, q and 5q, are separated by a distance d in air. Assume that the charge q is at the origin and the charge 5q is at x = d. A third charge is placed on the x axis so that the entire system is in equilibrium (there is no net force on any ..
The Signal power to noise power ratio is an important measure of the transmission quality of any channel. If at the receiver there is a 12 dB signal to noise ratio and the received signal power is 50 micro W then calculate the received noise power..
aims of the project1. to determine the energy uses on farms in middle east .2. to determine the best solar cell the use
The conveyor belt moves relatively slow therefore several seconds pass before the separator switches position. The piston moves two switches (N/A) when it is on position one or on position two. The control system requires a variable exit voltage b..
A DC motor has an input of 0-5V and runs at speeds from o to 80 rpm. What duty cycle signal is required to run the motor at approximately 20 rpm
What is the maximum value of voltage that is considered a valid logic 0 at bit D0 of the 8088's data bus Assume that the output is sinking 2mA
Each memory "word", therefore is a 'nibble', i.e, four bits wide. Sticking to the idea of accessing memory cells using a multiplexed addressing scheme, sketch the memory cells configuration for the four devices and circle the four cells that will ..
If we use a single mode fiber with 17 ps/nm/km dispersion for transmitting two different signals with two different wavelengths - 1550 and 1560 nm respectively -, what is the time delay between those two signals after 100 km?
An intercom system has a 13 kHz annoying whistle with amplitude of 20% of a typical voice signal. Assume that a typical voice signal has a frequency of 3 kHz and the intercom's output for a typical voice level has amplitude of 10V.
The input impedance of a 31cm long lossless transmission line of unknown characteristic impedance was measured at 1 MHz. With the line terminated in a short circuit, the measurement yielded an input impedance equivalent
(a) If E=Exax andH=Hyay, begin with Maxwell's equations anddetermine the second order partial differential equation that Ex must satisfy. (b) Show that Ex=E0 cos (ωt-βz) isa solution of that equation for a particular value of β.
A voltage source Vs = 10 V is in series with a resistor of 10 kOhm. If the source transformation theorem is applied, what will the value of the current source be in mA
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