Engineering, 13.06.2020 19:57 perezsamantha3oqr0za
A 3-phase, 4160 V, 50-Hz, 660 HP, 8-pole, Y-connected induction motor has its per-phase equivalent circuit when referred to stator side as shown below. The total friction, windage, and core losses can be assumed to be constant at 1000 W. For a per-unit slip of 0.015, when the motor is operated at rated voltage and frequency; (a) Sketch and find the value of the components of the per-phase Thevenin's equivalent circuit of an Induction motor (b) What are the starting current and the starting torque of this motor? (e) Find the slip at pull-out torque. (d) Find the pull-out torque of this motor. (e) Find the value of the external resistance required in each phase of the rotor circuit such that the maximum torque occurs at starting.
Answers: 1
Engineering, 04.07.2019 18:10, Candi9697
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:10, tobyhollingsworth178
Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer
Answers: 2
Engineering, 04.07.2019 19:10, shayshay7874
An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling
Answers: 2
A 3-phase, 4160 V, 50-Hz, 660 HP, 8-pole, Y-connected induction motor has its per-phase equivalent c...
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