Example numerical of dc generator., Electrical Engineering

Assignment Help:

Q. An 8 - pole dc generator has 500 armature conductors and has a useful flux per pole of 0.065 web. What will be the emf generated if it is lap connected and runs at 1000 r.p.m.  What must be the speed at which it is to be driven to produce the same emf if it is wave wound?  

Ans.

E1   = N1PΦZ/60A = 10000 × 0.065 ×500 ×  P/A

               For lap connection A = P

 

                       E1  =  10000 × 0.065 ×500 /60 = 541.67 volts

 

                       E2  = N28ΦZ/60 × 2

 

 Since                  E2  = E1

 

                             8N2ΦZ/60 × 2 = 8N1ΦZ/60 × 8

 

                       N2 = N1 × 2/8 = 1000 × 2/8 = 250 rpm


Related Discussions:- Example numerical of dc generator.

Classify the different types of insulating materials, Classify the differen...

Classify the different types of insulating materials with reference to their limiting safe temperatures for use. On the basis of insulating materials and their limiting safe te

Push psw instruction , PUSH PSW Instruction It is similar to above  pu...

PUSH PSW Instruction It is similar to above  push  instruction but instead of normal  register Paris it use PSW as its  operand. Program status  word comprises of  the content

Exponentially weighted moving average, 1. The Excel file contains daily clo...

1. The Excel file contains daily closes for the S&P/TSX composite index from January 2, 2008 to December 31, 2010. Assuming that December 31, 2010 is the current day. A) Using the

Bcd to excess 3 code converter, What are the industrial applications of the...

What are the industrial applications of the project bcd to excess 3 code converter?

#DSP ., #The requirement is as follows- There is a signal which is in the r...

#The requirement is as follows- There is a signal which is in the range of 0 to 5Hz. This signal frequency composition is to determined. The resolution of the determination is 1Hz.

Two stage rc coupled amplifier, Q. Two Stage Rc Coupled Amplifier? ...

Q. Two Stage Rc Coupled Amplifier? It is the most popular type of a multistage amplifier because it is cheap and provides excellent audio fidelity over a wide range of fre

Calculate the resistivity of an alloy of copper, The resistivity of pure co...

The resistivity of pure copper is 1.56 micro-ohm -cm.  An alloy of copper contains 1 atomic percent nickel has a resistivity of 2.81 micro-ohm-cm. An alloy of copper containing 3-

Find the equivalent components of the network, Q. At the two terminals (A, ...

Q. At the two terminals (A, B) of a one-port network, the voltage and the current are given to be v(t) =200 √2 cos (377t + 60°) V and i(t) = 10√2 cos(377t + 30°) A. (a) Determin

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