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Thespeed of a 20-hp, 300-V, 1800-rpm separately excited DC motor iscontrolled by a three-phase full converter drive. The field currentis also controlled by a three-phase full converter and is set tomaximum possible value. The AC input is a three-phase, Y-connected,208-V., 60 Hz supply. The armature resistance is 0.25 Ω, thefield resistance is 245 Ω, and the motor voltage constantKv is 1.2 V/A rad/s. The armature and field currents canbe assumed to be continuous and ripple free. The viscous frictionis negligible. Determine:
The delay angle of the armature converter if the motor supplies therated power at the rated speed.
The no-load speed if the delay angles are the same as in (a) andthe armature current at no load is 10% of the rated value.
The speed regulation.
Consider the LTI described by the following input-output relation: y[n] = 3/4y[n-1]-1/8y[n-2]+x[n] a)Find system function H(z) and check is system is stable. b)Determine impluse response h[n] of system
A coil having an inductance of 10uH is intended for applications around 1-MHz frequency. Its Q is specified to be 200. Find the equivlent parallel resistance R. What is the value of the capacitor required to produce responance at 1MHz
Convert the value: $2103.25 using an IEEE standard 4 byte (32 bit) float floating point number representation. Identify every bit of the 32 bit number holding this record by first converting the number 2103.25 from decimal to binary
An AM receiver, operating with a sinusoidal modulating signal and 80 percent modulation, has an output signal-to-noise ratio of 30 dB. a) What is the correspoding carrier- to - noise ratio
And how long it will take to reach that temperature assuming no heat lost in the process and comments on your results and may research the properties of nichrom wire to determine the resistivity of the wire
Several copies of the signal, shifted in time and frequency as well as attenuated, are received-that is, the transmission is done over multiple paths each attenuating and shifting the sent signal. The sum of these versions of the signal appears qu..
The circuit will have as inputs a minimum of two inputs; the binary equivalent of two decimal numbers of not greater than (10,000)10. The circuit will also produce a minimum of two outputs, the quotient and the remainder.
Consider the following differential equation, where x(t) is the input and y(t) is the output: d/dt y(t)+5y(t)=2x(t) Suppose the input is x(t) = 4u(t) and the initial condition is y(0-) = 6 1. What is the impulse response for the system
What are the names of the three regions of the bipolar junction transistor? Why is there a thin region of one material type
Design a 0-1-2-3-0 counter circuit using flip flops. Flip flop A (most significant bit) is to be a T flip flop and Flip Flop B (leats significant bit) is to be a D flip flop.
A child is sitting on the outer edge of a merry-go-round that is 18 m in diameter. If the merry-go-round makes 5.4 rev/min, what is the velocity of the child in m/s
Find the maximum torque on an orbiting charged particle if the charge is 1.60E-19C, the circular path has a radius of 0.5E-10m, the angular velocity is 4E16 RAD/S, and B=0.4E-3T.
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