Calculate the starting torque when rated voltage is applied

Assignment Help Electrical Engineering

Reference no: EM131267272

For the motor of Prob P9.27

(a) calculate the starting torque when rated voltage is applied to the stator.

(b) calculate the slip at which the motor develops maximum torque and the value of this torque.

Prob P9.27:

A squirrel-cage induction motor is rated 25 kW, 440 V, 3-phase, 50 Hz. On full-load it draws 28.7 kW with line current 50 A and runs at 720 rpm. Calculate

(a) the slip,

(b) the power factor, and

Reference no: EM131267272

Questions Cloud

Calculate the external resistance to be added : The rotor of a 6-pole, 50 Hz slip ring induction motor has a resistance of 0.25 Ω/ phase and runs at 960 rpm. Calculate the external resistance/phase to be added to lower the speed to 800 rpm with load torque redcing to 3/4th of the previous value..

What the job would involve on a day-to-day basis : Blog discusses the cost control of recruiting and the different ways to recruit or advertise to employees. Provides several different recommendations for recruiting, and explains the costs associated with each method.

List and explain some of the pros and cons of the law : List and explain some of pros and cons of the law. How does ethics play a role in the law? Who is mostly impacted by the law? Find at least one additional article in the CSU Online Library related to your disappearing future.

Determine the company resources and capabilities : Assess the external threats affecting this corporation and the opportunities available to the corporation. Give your opinions on how the corporation should deal with the most serious threat and the greatest opportunity. Determine the company's res..

Calculate the starting torque when rated voltage is applied : A squirrel-cage induction motor is rated 25 kW, 440 V, 3-phase, 50 Hz. On full-load it draws 28.7 kW with line current 50 A and runs at 720 rpm

List and explain a variety of pricing objectives : List and explain a variety of pricing objectives. - Give an example of each major type of pricing objective.- Why do many firms not maximize profits?

Individual-applying risk management consulting : You have been hired as a consultant and asked to provide a presentation on the company's risk management to the CIO.

Describe the business ethics issues and definitions : Analyze two (2) of the legal mandates that workers and U.S. government has accused Walmart of violating. Provide an explanation as to why these legal mandates were violated, citing specific violations.

What role does effective interpersonal communication play : What role does effective interpersonal communication play in decision making within organizations

User Account

All Pages