A 3-phase, 8-pole, squirrel cage induction motor, connected to a 60 Hz line, possesses a synchronous...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
A 3-phase, 8-pole, squirrel cage induction motor, connected to a 60 Hz line, possesses a synchronous speed of 900 r/min. The motor absorbs 40 kW, and the copper and iron losses in the stator amount to 5 kW and 1 kW, respectively. Calculate the torque developed by the motor. A large 3-phase, 4000 v, 60 Hz squirrel cage induction motor draws a current of 385 A and a total active power of 2344 kW when operating at full-load. The corresponding speed is accurately measured and found to be 709.2 r/min. The stator is connected in wye and the resistance between the 2 stator terminals is 0.100. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate: a. Power factor at full-load b. Active power supplied to the motor c. 'R losses d. Mechanical Power (kW) e. Torque f. Efficiency A 3-phase, 8-pole, squirrel cage induction motor, connected to a 60 Hz line, possesses a synchronous speed of 900 r/min. The motor absorbs 40 kW, and the copper and iron losses in the stator amount to 5 kW and 1 kW, respectively. Calculate the torque developed by the motor. A large 3-phase, 4000 v, 60 Hz squirrel cage induction motor draws a current of 385 A and a total active power of 2344 kW when operating at full-load. The corresponding speed is accurately measured and found to be 709.2 r/min. The stator is connected in wye and the resistance between the 2 stator terminals is 0.100. The total iron losses are 23.4 kW and the windage and friction losses are 12 kW. Calculate: a. Power factor at full-load b. Active power supplied to the motor c. 'R losses d. Mechanical Power (kW) e. Torque f. Efficiency
Expert Answer:
Related Book For
Thermodynamics An Engineering Approach
ISBN: 978-0073398174
8th edition
Authors: Yunus A. Cengel, Michael A. Boles
Posted Date:
Students also viewed these electrical engineering questions
-
A1 GW synchronous generator is connected to an infinite bus through a transmission line. The infinite bus voltage (per phase) is 100 kV (reference voltage), the inductive reactance of the...
-
1. A three-phase, 6KVA, Y-connected synchronous motor has a synchronous reactance of 12 0 per phase and negligible armature resistance. Calculate the induced voltage when the motor takes 1000 kVA at...
-
A 50-kg iron block and a 20-kg copper block, both initially at 80°C, are dropped into a large lake at 15°C. Thermal equilibrium is established after a while as a result of heat transfer...
-
When Ralph Lauren makes shirts to a customers exact preferences, what utility is provided?
-
If you were the CEO of Toyota when the story was first publicized, how would you have reacted?
-
NACA 23012 is considered in the study at = 4, while the CL = 0. and Cm,c/4 =0.005. The zero-lift angle of attack is 1.1. In addition, at =4, Cm,c/4 =0.0125. Based on the given information,...
-
What the differences are between federal and state court jurisdiction?
-
Some communication experts claim that men and women have different styles of communication that create barriers to decoding messages from a sender of the opposite sex. What do you think are the...
-
Definitions: 9. Define the derivative f'(a). Discuss two ways of interpreting this number. 10. What is the relationship between continuity and the substitution method? 11. What does the squeeze...
-
Jack Tasker opened his Auto Repair Shop in November 2023. The balance sheet at November 30, 2023, prepared by an inexperienced part-time bookkeeper, is shown below. Required Prepare a correct balance...
-
The Addition to Harvey Hall at Berkshire School of Business In an effort to improve the level of quality of its classroom instruction, the Berkshire School of Business recently decided to reduce the...
-
IN-CLASS TASK Mr. W. is a 63-year-old recently retired engineer with a history of irritable bowel syndrome that causes frequent diarrhea and rectal bleeding. His wife is a schoolteacher. In...
-
After inheriting some money, a woman wants to invest enough to have an annual income of $5,000. If she can invest $20,000 at 9% annual interest, how much more will she have to invest at 7% to achieve...
-
What annual compound interest rate is required for the debt of a compound interest loan to grow by 58% in 6 years? Round your answer to the nearest tenth of a percent.
-
Consumers expect brands to be more intelligent and want them to provide meaningful, personalized experiences and demonstrate strong, authentic values they can identify with quickly. If you were to...
-
1. Explain how Maslow's hierarchy of needs could be used in an introductory speech or to create identification.
-
Sam is hearing impaired. He has applied and has been turned down for a secretarial job (at a large manufacturing company) that included answering phones. Sam told the interviewer that he could...
-
Funds are separate fiscal and accounting entities, each with its own self-balancing set of accounts. The newly established Society for Ethical Teachings maintains two funds-a general fund for...
-
An air-standard Diesel cycle has a compression ratio of 16 and a cutoff ratio of 2. At the beginning of the compression process, air is at 95 kPa and 27oC. Accounting for the variation of specific...
-
Steam is generated in the boiler of a cogeneration plant at 600 psia and 650F at a rate of 32 lbm/s. The plant is to produce power while meeting the process steam requirements for a certain...
-
An air-conditioning system is used to maintain a house at 72F when the temperature outside is 90F. If this air-conditioning system draws 5 hp of power when operating, determine the maximum rate of...
-
Why is the thermodynamic process also called cyclic process? Explain with suitable example.
-
A mercury manometer reads \(40 \mathrm{~cm}\) at \(30^{\circ} \mathrm{C}\) and \(1 \mathrm{~atm}\). Determine the absolute pressure, given that \(ho_{\mathrm{Hg}}=14.02 \mathrm{~g} /...
-
Define isothermal, isochoric and isobaric processes with suitable examples.
Study smarter with the SolutionInn App