Question three A short-shunt compound d.c. generator supplies a current of 83 A at a voltage of 235 V. If the resistance of the armature is 0.035 Q, the resistance of shunt field is 42 Q, the resistance of series field 0.032 Q, the iron losses amount to 824 w, find the copper losses, the mechanical ?power, and electrical efficiency

Question three A short-shunt compound d.c. generator supplies a current of 83 A at a voltage of 235 V. If the resistance of the armature is 0.035 Q, the resistance of shunt field is 42 Q, the resistance of series field 0.032 Q, the iron losses amount to 824 w, find the copper losses, the mechanical ?power, and electrical efficiency

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

Kindly solve what is ask with complete solution so that I can understand. I want a handwritten solution. Thank you very much pois!!
A 12 pole generator has a lap wound armature with 78 slots with 40 conductors per slot. Then the total number of armature conductors are ............... Answer
The voltage a cross the terminals of a certain 3-phase machine is 400 <40 ͦ V whereas the current which is assumed to be into this machine is 55<-60 ͦ Find the real and reactive powers consumed or delivered by this machine. What is the type of this machine?
A. The brushes used in a DC generator a) ride against the commutator segments. b) are made from material softer than the commutator segments. c) are generally marked Al and A2 d) all of the above B. A magneto is a DC generator that uses for its pole pieces. a) electromagnets b) permanent magnets c) either "a" or "b" d) neither "a" nor "b"
Question No.4 A dc generator has an armature emf of 100 V when useful flux/pole is 20 mWb, and a speed of 800 rpm. The generated emf at a speed of 1000 rpm and same flux is
The DC shunt generator with the terminal voltage 375 V, armature drop 7 V and the each brush drop 2 V, then the value of generated emf is
Dc machine.............
6. Calculate the flux in a 4-pole dynamo with 722 armature conductors generating 500 V when running at 1000 r.p.m. when the armature is (a) lap connected (b) wave connected. Subject: Electrical Machine 1
Please include the equivalent circuit complete with labels for each problem in the solution as my guide. Thanks!
Show detailed solution with illustration.
A D.C. shunt wound generator running at constant speed generates a voltage of 120V at a certain value of field current. When flux is reduced by 10% calculate the new value of flux Estimate the change in the generated voltage when the field current is reduced by 10%, assuming the flux is proportional to the field current.
The DC shunt generator with the terminal voltage 375 V, armature drop 6 V and the each brush drop 4 V, then the value of generated emf is