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A 40hp, 50Hz, 2300V, 8-pole induction motor is operating at 80% rated load and 6% reduced voltage. The efficiency and power factor for these conditions are 85 and 90% respectively. The combined windage, friction, and stray power losses are 1011W, the rotor conduction losses are 969W, and the stator conductor losses are 1559W. Sketch the power flow diagram, enter values, and determine (a) mechanical power developed; (b) shaft speed; (c) shaft torque; (d) slip speed; (e) line current; (f) core loss
Once a week a wagon driver leaves his hut and drives his wagon to the river dock to pick up supplies for his town. At 4:05 PM, one-fifth of the way to the dock, he passes the Temple. At 4:15 PM, one-third of the way, he passes the Preetam-Da-Dhaba..
Tones Input In To An Amplifier, Suppose two tones are input in to an amplifier. The tones are pure sinusoids with one at frequencies 8GHz and the other at frequency 8.03GHz,(delta f =0.03GHz).
What is the smallest frequency that can be used to sample each of the following continuous-time signals such that the signal can be recovered from the discrete samples (a) \(x(t)=1+cos(2000\pi t)+cos(4000\pi t)\)
A 200-ohm transmission line is to be matched to a computer terminal with XL = (50 - j25) ohm by inserting an appropriate reactance in parallel with the line. if f = 800MHz and er = 4, determine the location nearest to the load at which inserting
1- Why do we use PWMCTL What does it mean If we have PWMCTL=0x80 What does it mean if we have PWMCTL = 0x00 2- The PWMPER register and PWMDTY registers are 8 bits. What does it mean when we say we are using a 16-bit PWM
Find the absolute potential at a distance h off of the end of the segment. How much work is needed to transport a point charge Q1 from infinity to this location
(a) a circuit in which one fuse will be damaged and other three not, after making all connections as per you schematic and connecting power supply (b) a circuit in which two fuses will be damaged and other two not,d connecting power supply
A 300 V, 60 A, 1200 rpm series dc motor has an armature and series field resistance of .2 ohms each. When a .10 ohm resistance is connected in parallel to the winding, the motor's torque is doubled.
What is the minimum sampling rate that can be used to obtain samples that completely specify the following signalx(t) = 10cos(20*pi*t) - 5cos(100*pi*t) + 20cos(400*pi*t)
Devise a detailed algorithm for a ring with p nodes so that each node would atttain the final sum of original node values. Determine the worst case communication steps for the algorithm.
What are the transfer function and the impulse response of the system?
Consider that you have an op amp integrated circuit package such as the LM741 in Appendix C. what type of testing appropriate for testing this device. write a short test plan for doing.
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