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A 1500 kW. 3-phase, star-connected 2300 V, 50 Hz synchronous motor has a synchronous reactance of 2 W/phase. The motor is supplied from a 3-phase, star-connected, 2300 V, 1750 kVA turbo generator whose synchronous reactance is 2.8 Ω/phase. When the motor is drawing full-load power, at upf, calculate:
(a) the induced emf of the generator, and
(b) emf of the motor.
What maximum power can flow from the generator to the motor With machine excitations held fixed?
A full-wave bridge rectifier circuit with a 1-kohms load operates from a 120-V (rms) 60-Hz household supply through a 10-to-1 step-down transformer having a single secondary winding
Assume the resistance of a certain type of resistor is normal distrubuted random variable with mean =12.8 ohms and standard diviation of =1.3ohms. if a single reistor is to be randomly selected from the process producing resistors.
What is the resistance of a 100W bulb when it is operating in a circuit supply of 120V
1. A signal with a range of 0-12 V is sampled with an 8-bit ADC. What is the change in voltage (delta) between digitized levels 2. Using the SPI, we send three bytes to the LTC2600 DAC. What information is provided in each of the three bytes
Derive the transfer function for the system.- Find the first three terms of the output sequence in response to the finite input sequence of 2, 2, 1.
The amount of bending of the light into a material depends on the__- The wavelength of red light is:- The material surrounding the core of the optical wave-guide is called:
Where x(nTs), found above, is the input and x (nTs) is the output of the quantizer. Let the quantization step be delta= 0.5. Plot the input-output characterization of the quantizer, and find the quantized output for each of the sample values
A 12-V automobile battery has an output capacity of 100ampere-hours (Ah) when connected to a head lamp that absorbs 200watts of power. a) Find the current supplied by the battery.
A U manometer reads 20 cm air as operating fluid and a given manometric fluid. A single branch closed tube reads 35 cm connected to point 1. If P2 = 1.2 ATM calculate the pressure in point 1 and the density of the manometric fluid.
Consider the Schottky TTL circuit in Figure. - Determine all base currents, collector currents, and node voltages for vX = vY = 0.4 V.
A wide flange section has the idealized residual stress distribution shown below. Find the relationship (an equation) between the maximum compressive residual stress, frc, and the maximum tensile residual stress, frt, in terms of the dimensions b, ..
Determine the frequency/frequencies of aliasing noise.
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