14. Armature of a 2-pole, 200-V generator has 400 conductors and runs at 300 r.p.m. Calculate the useful flux per pole. If the number of turns in each field coil is 1200, what is the average value of e.m.f induced in each coil on breaking the field if the flux dies away completely in 0.1 sec ? (JNTU, Hyderabad, 2000) Hint: Calculate the flux per pole generating 200 V at 300 rpm. Calculate the e.m.f. induced in 1200-turm field coil due to this flux reducing to zero in 0.1 sec, from the rate of change of flux-linkage. (4 = 0.1 Wb, e = 1200 V]

14. Armature of a 2-pole, 200-V generator has 400 conductors and runs at 300 r.p.m. Calculate the useful flux per pole. If the number of turns in each field coil is 1200, what is the average value of e.m.f induced in each coil on breaking the field if the flux dies away completely in 0.1 sec ? (JNTU, Hyderabad, 2000) Hint: Calculate the flux per pole generating 200 V at 300 rpm. Calculate the e.m.f. induced in 1200-turm field coil due to this flux reducing to zero in 0.1 sec, from the rate of change of flux-linkage. (4 = 0.1 Wb, e = 1200 V]

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

Please see attached picture
A 6 pole wave wound d.c. shunt generator has 500 conductors. A generator delivers 50 kW of power at 250 voltage at full load. The resistance of the field circuit is 125 2. Actual brush shift is 10°. Then find the demagnetizing and cross magnetizing ampere turns per pole and how many additional turns must be wound on each pole to eliminate the demagnetizing effect.
A four-pole Series connected generator has a lap connected armature with 728 conductors. If the generator supplies one hundred incandescence lamp (100V, 60 W). The series field and armature resistance are 0.2 ohms and 0.015 ohms respectively. Find the generated voltage.
5
9. How does the concept of magnetic saturation impact the performance of transformers and inductors?
A 4 pole generator with wave wound armature has 50 slots each having 22 conductors. The flux per pole is 0.01 Wb. At what speed must the armature rotate to give an induced EMF of 220V is,
Please answer both subparts i will really upvote. Thanks
(a) A single phase distributed winding carries alternating current. Show that the time maximum of the peak mmf for a P pole machine is given by 4 N V21 Fipm -K ph ATs per pole P