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A three-phase 60-Hz induction motor runs at 715 r/min at no load and at 670 r/min at full load.
(a) How many poles does this motor have?
(b) What is the slip at rated load?
(c) What is the speed at one-quarter of the rated load?
(d) What is the rotor's electrical frequency at one-quarter of the rated load?
Consider the signal x (t) = 10+ 20 cos (100*2 t + 4) + 10 cos (250*2 t ) A. Using Euler's relation, the signal x(t) defined by the above equation can be expressed as a sum of complex exponentials in the form X(t) = x0 + Re{k=1N Xkejk2fot}
he circuit is excited by a full-wave, ac/dc SCR converter. The ac voltage (input to the converter) is 120 V (rms), and the circuit resistance is 5 Ohm. At a trggering angle of 30 degrees, the load current is continous . Calculate the following
Project objectives Design a controller using state-space method to meet the above specifications Your project report should contain the detailed justification of the type/structure of controller
Write about summing type and difference amplifiers?
What legal condition must be present for a Surety to act There are 6 courses of action that he can take (see slide 102). Assume the contract in question is to repave the Founder's Lot at UOIT; Pave-M-Good (PMG) being the contractor
Project to develop a controller for a new satellite.
1-for an FM reciever tuned to 94.5 MHZ using high side-injection and a first IF of 10.7 MHZ, Determine the image frequency and the local oscillator
Power Electronics - Diode, [Power electronics] The measured values of a diode at a temperature of 25 Degrees Celsius are: Vd=1V at Id=50A, Vd=1.5V at Id=600A. Determine (i) the emission coefficient n, and (ii) the leakage current.
The energy stored in a 2H inductor is 400J and is decreasing at 200J/s at t=4 seconds. Determine the voltage magnitude and curent magnitude at t=4 seconds. Does the current enter or leave the positive terminal of the inductor.
Scenario/Summary: At least two of the following simulations must be attempted by the student. Verify Loop Analysis Method by MultiSim simulation Verify Superpposition Theorem Method by MultiSim simulation
(a) Calculate the transformation matrix used to rotate an image by 45o clockwise about the Zaxis. (b) How would you use this transformation matrix to achieve the desired rotation (c) Use the transformation matrix to rotate the image point (x,y) = (0,..
• Explain the difference between an AC induction motor and an AC synchronous motor. Include in your discussion the differences in motor construction and torque-operating characteristics.
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