Calculate the mechanical output power, Mechanical Engineering

A 415 V, 5 kW, 50 Hz, 4-pole, 3-phase wound-rotor induction motor has the following characteristics: 

  1. Stator winding resistance R1 = 2.1 Ω,
  2. Referred rotor winding resistance R'2 = 1.8 Ω,
  3. Stator leakage reactance X1 = 2.25 Ω.
  4. Referred rotor leakage reactance X'2 = 2.25 Ω.

The magnetising current, core losses and rotating losses can be neglected for this question.   

The motor is started direct on-line from a 415 V 50 Hz three phase supply. 

(a)  Calculate the starting current.

(b)  Calculate the starting torque.

(c)  Discuss how the starting current could be limited for this wound-rotor motor. 

(d)  If the motor is running at a speed of 1450 rpm, calculate the mechanical output power.

Posted Date: 2/18/2013 3:00:39 AM | Location : United States







Related Discussions:- Calculate the mechanical output power, Assignment Help, Ask Question on Calculate the mechanical output power, Get Answer, Expert's Help, Calculate the mechanical output power Discussions

Write discussion on Calculate the mechanical output power
Your posts are moderated
Related Questions

Strength tests : These tests are carried out to check the holding powers of various binders used in green moulding sand, dry moulding sand and core sand. These tests are performed

Operating characteristics of the valve is nonlinear (Fig.), a cascade controller established to reduce the effect of this. Both controllers are proportional controllers. TC has

Due Diligent:   There are many literatures on sand blasting and manufacturing processes. Historically, sand blasting had been used for many tasks before. It was pretty famous

Find out the motion of the system: Block (A) of mass M A = 40 kg is resting on coarse table having coefficient of friction = 0.1. This is tied up with an inextensible rope (

Stress Distribution in Beams: 1. learn the section modulus of beams of several cross section. 2. found the normal force for partial beam section & its moment around the neu

Resultant of Concurrent Force System: The resolution of forces helps in finding out the resultant of a number of forces working on a body as it decrease vectorial addition to

Q. What is Shatter test? Shatter test: This test is measure of toughness of the moulding sand. It indicates the capacity of the moulding sand to with stand rough handling dur

Q. Factors in the design of high temperature materials? There is typically little correlation between room temperature strength and high temperature strength of creep-resistant

Q. Corrosion in Steam Condensate System? Carbon dioxide and oxygen, either acting alone or in combination, account for the majority of steel corrosion problems in the condensat