Calculate the generator emf , Electrical Engineering

Q. The armature of 6 -pole dc generator has a wave winding containing 664 conductors. Calculate the generator emf when flux per pole is 0.06 weber and the speed is 250 rpm. At what speed must the armature be driven to generator an emf of 250 V. If the flux per pole is reduced to 0.058 weber.

  Sol.  Given P = 6; A = 2 (as wave wound); Z = 664    Φ = 0.06,       N = 250 rpm

 

           Thus    Eg = PΦZN/60A = 6/2 × 0.06 × 664 × 250/60 = 498V

 

           Now , given Eg = 250 V; Φ = o.o58 weber

 

            Then            N = ?

 

            Thus              Eg1/Eg2 = Φ1/ Φ2 × N1/N2

 

             Or               498/250 = 0.06/0.058 × 250/N2

 

              Or           N2 = 130 rpm

Posted Date: 7/23/2012 1:55:01 AM | Location : United States







Related Discussions:- Calculate the generator emf , Assignment Help, Ask Question on Calculate the generator emf , Get Answer, Expert's Help, Calculate the generator emf Discussions

Write discussion on Calculate the generator emf
Your posts are moderated
Related Questions
3-phase 180 0 mode VSI In 1800 mode VSI  each thyristor  conduct  for 1800 and two  thyristor  are fired  at 600 interval. For  example  if thyristor  T1  is fired at 00 then

Interpret the Assembly Output of the LC - 3 Compilers Goals to understand the stack convention of the LC3 compiler: How the stack pointer and frame pointer are managed

Q. The response y(t) of a linear system to a unit-step excitation is y(t) = (4 - 10e -t + 8e -2t )u(t). (a) Find the system function. (b) Find the frequency at which the fo

1. Sum of forces is zero velocity remains constant.[If the particle is initially at rest, it will remain at rest for as long as the sum of the forces is zero]. 2. Sum F of for

A three-phase transposed line is composed of one ACSR conductor per phase with flat horizontal spacing of 11 meters as shown in Figure (a). The conductors have a diameter of 3.625


the base of isosceles triangle and the altitude drawn from one of the congruent sides are equal to 18cm and 15cm, respectively. Find the lengths of the sides of the triangle.

what ''s part of dcmotor or dc generator

whether piezo crystal and quazt crystal oscillator are same?

define the physical significance of damping coefficient