Calculate the mechanical output power, Mechanical Engineering

Assignment Help:

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.


Related Discussions:- Calculate the mechanical output power

High temperature materials in boilers, Q. High temperature materials in Boi...

Q. High temperature materials in Boilers? A thin refractory layer between the shield and boiler tube is recommended in areas subject to moderate temperatures and levels of corr

Rankine Cycle, In a nuclear power plant saturated steam at 30 bar enters a ...

In a nuclear power plant saturated steam at 30 bar enters a h.p. turbine and expands isentrophically to a pressure at which its quality is 0.841. At this pressure the steam is pass

GOVERNOR, APPLICATION OF GOVERNOR

APPLICATION OF GOVERNOR

Short life cycle demand uncertainty - risk management, how I can formulate ...

how I can formulate mathematically the risk management in demand uncertainty of short life cycle product.

Tensile and compressive force - mechanics, Tensile and Compressive Force: ...

Tensile and Compressive Force: T ensil e Forces A force, that pulls the body, is called as tensile force. Here member AB is tension member carrying tensile force P. As

Example of wedge friction, Example of Wedge friction: T wo blocks A...

Example of Wedge friction: T wo blocks A and B are employed to raise load of 2000 N resting on another block C by the application of force P as shown in the figure g

Find out force on each member - truss, Find out force on each member - Trus...

Find out force on each member - Truss: A truss is as shown in the figure given below. Find out force on each member and the nature of it.  Sol.: First we calculate sup

Define the gear hobbing, Define the Gear Hobbing This is the most produ...

Define the Gear Hobbing This is the most productive of all the gear production processes. However, it can only be used for producing spur gears and worn gears. It cannot be use

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd