Engineering Electromagnetics
Engineering Electromagnetics
9th Edition
ISBN: 9781260029963
Author: Hayt
Publisher: MCG
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Chapter 8, Problem 8.5P
To determine

The torque on cylinder.

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Q3/A 8-pole, 3-phase, 50 Hz induction motor, running at 725 r.p.m, rotor is star connected its resistance and reactance 0.25 and 1.5 ohm per phase, the emf between slip rings is 100, find the rotor current per phase, power factor, synchronous speed, slip and rotor frequency
440 v, 4-pole, 3-phase, 50 Hz, star stator connected induction motor, full load speed 1425 r.p.m, rotor impedance 0.5+4.55ohm and rotor/stator ratio 0.8 calculate 1) starting torque, (2) rotor current (3) the value of external resistance to add to give maximum starting torque (4) power factor at maximum torque.
I would like to know the gear ratio and the tractive effort that a trolley must achieve with the following motor specifications: Voltage: 600 voltsSpeed: 1750 to 2300 RPMCurrent: 84 AmpsRated Power: 50-55 HP What percentage should be considered for gear efficiency, and what safe margin should be applied in these calculations? The constraints for the truck trolley are as follows:Maximum Speed: 50 MPHWeight of the Car Body: 46,000 lbs (the trolley weighs approximately 44,000 lbs)Diameter wheels: 86 inchesAdditionally, I would like to know how to plot a graph of tractive effort (in grams) versus speed (in MPH).

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Engineering Electromagnetics

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