Question: The following data apply to a 125-kW, 2300-V, three-phase, four pole, 60-Hz squirrel-cage induction motor: Stator-resistance between phase terminals = 2.23 . No-load test at

The following data apply to a 125-kW, 2300-V, three-phase, four pole, 60-Hz squirrel-cage induction motor: Stator-resistance between phase terminals = 2.23 Ω. No-load test at rated frequency and voltage: Line current = 7.7 A Three-phase power = 2870 W. Blocked-rotor test at 15 Hz: Line voltage = 268 V Line current = 50.3 A. Three-phase power = 18.2 kW

a. Calculate the rotational losses.

b. Calculate the equivalent-circuit parameters in ohms. Assume that Xl = X2.

c. Compute the stator current, input power and power factor, output power and efficiency when this motor is operating at rated voltage and frequency at a slip of 2.95 percent.

Step by Step Solution

★★★★★

3.41 Rating (157 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

part a ProtPnl312 R 2672 W part b The parameters are calculated foll... 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 (185).docx

120 KBs Word File

Students Have Also Explored These Related Electrical Engineering Questions!

The following data apply to a closed link traverse [like that of Figure 9.1(b)]. Compute preliminary azimuths, adjust them, and calculate departures and latitudes, misclosures in departure and...

The following data apply to items (a) through (g): Required Answer the following multiple-choice questions: a. The acid-test ratio for 2009 is 1. 1.1-to-1. 2. 0.9-to-1. 3. 1.8-to-1. 4. 0.2-to-1. 5....

Question 1: The flux per pole in a synchronous motor with the field circuit ON and the startor disconnected from the supply is found to be 25 mWb. When startor is connected to the rated supply with...

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...

Hello, you already did chapter 1 and 2 of my MASTERS Thesis already for me. (See attached) So normally you know masters thesis consist of 5 chapters right ??..... But in this case my thesis will be 4...

QUESTION ONE Lanexo Products Ltd who manufactures and retail products A, B and C employ sixty direct workers who work under a group of bonus scheme. The company engages three grades of workers who...

Can you please help me with questions 8 and 9 for Case 6..... I have answers to questions 1-7 if needed... Cases for Management Decision-Making CA-1 Suggested Uses of Cases Case Overview CASE 1 This...

Good Morning... I need help with questions 1-7 for Case 6 in the document attached...Please. Cases for Management Decision-Making CA-1 Suggested Uses of Cases Case Overview CASE 1 This case is the...

A uniform solid cylinder Figure of mass M is supported on a ramp that rises at an angle θ T above the horizontal by a wire that is wrapped around its rim and pulls on it tangentially parallel...

2. Determine a basis for and the dimension of the solution space of the homogeneous system X3 + X4 + x5 = 0 -X1 - X2 + 2x3 3x4 + X5 = 0 X1 + x2 - 2x3 - X5 = 0 2x1 + 2x2 x3 + X5

The net advantage to leasing uses NPV to determine lease benefits. Group startsTrue or False True, unselectedFalse, unselected

Enviro Company issues 8%, 10-year bonds with a par value of $ 250,000 and semiannual interest payments. On the issue date, the annual market rate for these bonds is 10%, which implies a selling price...

A factory manufactures jelly. The jars of jelly are packed six to a box, and the boxes are sold to grocery stores. The following types of cost were incurred: Jars Sugar Fruit Pectin (thickener used...

Parker Corporation's charter authorizes the issuance of 1 million common shares and 500,000 preferred shares. The following transactions involving share issues were completed. Assume that Parker...

The following selected data were taken from the financial statements of Robinson Inc. for December 31, 2016, 2015 and 2014: December 31 2016 2015 2014 Total assets...

URL Services has two divisions: Basic Web Pages and Custom Web Pages. Ricky Vega, manager of Custom Web Pages, wants to find out why Custom Web Pages is not profitable. He has prepared the reports...

Note: This project will require the use of computer program to facilitate com putation

(a) The CDF of the variety x is F (x) = 0.555x 33, where x is in millimeters. Find the PDF, the mean, the standard deviation, and the range numbers of the distribution. (b) In the expression = F/A,...

A regression model of the form Show that For the data set Find the regression equation and plot the data with the regression model. x 0.0 0.2 0.4 0.6 0.8 1.0 y0.0 0.15 0.25 0.25 0.17 -0.01

R. W. Landgraf reported the following axial (push pull) endurance strengths for steels of differing ultimate strengths: (a) Plot the data with Se as ordinate and Su as abscissa. (b) Using the y = mx...

M&M Proposition I with taxes states that the: Select one: a. Value of a levered firm is equal to the present value of the interest tax shield plus the value of an unlevered firm. b. Required return...

A leader who sets levels of expectation, then gives direction and guidance and determines work schedules uses what type of leadership theory? O A. Supportive O B. Directive OC. Participative O D....

You have approached your local bank for a start-up loan commitment for $290,000 needed to open a computer repair store. You have requested that the term of the loan be one year. Your bank has offered...