Engineering, 17.04.2020 02:26 sairaanwar67
In a 2-pole, 208 V (line-to-line, rms), 60-Hz, motor, Rs 1⁄4 0:5 Ω, R0r 1⁄4 0:45 Ω, X‘s 1⁄4 0:6 Ω, and X 0‘r 1⁄4 0:83 Ω. The magnetizing reactance Xm 1⁄4 28:5 Ω. This motor is supplied by its rated voltages. The rated torque is developed at the slips 1⁄4 0:04. At the rated torque, calculate the rotor power loss, the input current, and the input power factor of operation.
Answers: 1
Engineering, 04.07.2019 18:10
Assuming compressible flow of air and that the measurements are done at flagstaff a pitot static tube that gives the difference of total and static pressure measures 0.35 m of mercury. what is the velocity of air? assume the temperature to be 300k. (submit your excel or matlab calculation sheet)
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Engineering, 04.07.2019 18:10
Which of the following refers to refers to how well the control system responds to sudden changes in the system. a)-transient regulation b)- distributed regulation c)-constant regulation d)-steady-state regulation
Answers: 1
Engineering, 04.07.2019 18:20
Find the minimum film thickness for a journal bearing with the data below. shaft diameter, d-50 mm, clearance ratio, cdratio? 0.001, shaft speed, n 2000 rpm; bearing length. i 200 mm; eccentricity ration, ? -0.55. ( note, cdratio-ca/d) the minimum film thickness is um
Answers: 2
In a 2-pole, 208 V (line-to-line, rms), 60-Hz, motor, Rs 1⁄4 0:5 Ω, R0r 1⁄4 0:45 Ω, X‘s 1⁄4 0:6 Ω, a...
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