Question: The nameplate on a 460-V, 50-hp, 60-Hz, four-pole induction motor indicates that its speed at rated load is 1755 r/min. Assume the motor to be

The nameplate on a 460-V, 50-hp, 60-Hz, four-pole induction motor indicates that its speed at rated load is 1755 r/min. Assume the motor to be operating at rated load.

a. What is the slip of the rotor?

b. What is the frequency of the rotor currents?

c. What is the angular velocity of the stator-produced air-gap flux wave with respect to the stator? With respect to the rotor

d. What is the angular velocity of the rotor-produced air-gap flux wave with respect to the stator? With respect to the rotor

Step by Step Solution

★★★★★

3.26 Rating (164 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a Synchronous speed is 1800 rmin Therefore s 1800 1755 1800 0025 25 b Rotor currents are at s... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

20-E-E-E-M (165).docx

120 KBs Word File

Students Have Also Explored These Related Electrical Engineering Questions!

Final Exam Simulation (50 points) Directions: Go to theHydrostatic Pressure Simulatorhttps://phet.colorado.edu/en/simulation/under-pressure Click the BIG RED 5 Explore the simulator by moving the...

The nameplate on a 50-MVA, 60-Hz single-phase transformer indicates that it has a voltage rating of 8.0-kV: 78-kV. An open-circuit test is conducted from the low-voltage side, and the corresponding...

The nameplate on a 7.97-kV: 460-V, 75-kVA, single-phase transformer indicates that it has a series reactance of 12 percent (0.12 per unit). a. Calculate the series reactance in ohms as referred to...

A sinusoidal wave of frequency 500 Hz has a speed of 350 m/s. (a) How far apart are two points that differ in phase by /3 rad? (b) What is the phase difference between two displacements at a certain...

( a ) The nameplate on a 3 5 0 V , 6 0 Hz , 4 pole induction motor indicates its rated speed at rated load is 1 7 5 2 rpm . When operating at rated load, determine ( i ) the angular velocity of the...

please answer all the questions:- A wound DC motor is connected in both a shunt and a series configuration. Assume generic resistance and inductance parameters Ra, Rf, La, Lf, let the field...

Statistics Questions:- The power rating of a motor can be modified to account for different ambient temperature, according to the following table: Ambient 30 35 C 40 C temperature C Variation of...

Please help me .. am stuck... please address all questions clearly:- The power rating of a motor can be modified to account for different ambient temperature, according to the following table:...

A 100-hp, three-phase, 60-Hz, 460-V, four-pole, 1750-rpm induction motor is used in an application, which would load the motor to only 65% of the rated torque (this is obviously a higher-rated motor...

Assignment IV An induction motor has an efficiency of 0 . 9 when the shaft load is 4 5 kW . At this load, stator ohmic loss and rotor ohmic loss each is equal to the iron loss. The mechanical loss is...

A thin metal strip of total weight W and length L is placed across the top of a flat table of width L/3 as shown in the figure. What is the clearance d between the strip and the middle of the table?...

Discuss the two aspects of psychoanalytic literary theory that are given below 1. Id, ego, and super-ego 2. The Oedipus complex and Electra complex

Hanley Corporation is considering the elimination of one of its segments. The segment incurs the following fixed costs. If the segment is eliminated, the building it uses will be sold. Required Based...

Nher the collapse of communism in fussia, successidal business owners often had to pary "protection money" to the Malla or face wholent retribution. This is an exameter of: fights corruption. public...

Euclid acquires a 7-year class asset on May 9, 2016, for $80,000. Euclid does not elect immediate expensing under 179. She does not claim any available additional first-year depreciation. Calculate...

Why might it be useful for a company to evaluate its prices more frequently than once per year? How might breakeven analysis help make it practical to carry out more frequent price evaluation?

Describe how the calculation of a price-change breakeven can take into account changes in both variable costs and fixed costs.

A common practice of fast-food and retail coffee shop chains such as Starbucks is to lease some or all of their retail space. Starbucks Form 10-K filing states that the firm leases retail store,...

Describe a situation when the incremental fixed costs used in a breakeven calculation would be a negative amount.

What is the service level method for determining Q and ROP? When should it be used?

A speed reducer has 20 full-depth teeth and consists of a 22-tooth steel spur pinion driving a 60-tooth cast-iron gear. The horsepower transmitted is 15 at a pinion speed of 1200 rev/min. For a...

A gear drive consists of a 16-tooth 20 steel spur pinion and a 48-tooth cast-iron gear having a pitch of 12 teeth/in. For a power input of 1.5 hp at a pinion speed of 700 rev/min, select a face width...

A gearset has a diametral pitch of 5 teeth/in, a 20 pressure angle, and a 24-tooth cast-iron spur pinion driving a 48-tooth cast-iron gear. The pinion is to rotate at 50 rev/min. What horsepower...

Principal Varimax Component Rotated Loadings Loadings Variables f1 f2 f1 f2 Communalities, h? y1 0.039 0.989 0.025 0.990 0.981 y2 0.889 0.268 0.893 0.256 0.863 y3 0.893 -0.158 0.891 -0.170 0.822 y4...

a. What is the expected return on a portfolio that is equally invested in the two assets? b If a portfolio of the two assets has a beta of .64, what are the portfolio weights? c. If a portfolio of...

What is the default storage class for any function Pick ONE option C ) Static C ) ) Extern O Auto o Register Clear Selection