A 250 V, compound generator has armature, series field and shunt felid resistance of 0.4 Q,0.20 and 125 Q respectively. If this generator supply10 Kw.at rated voltage. Ignore armature reaction and assuming a drop of 1 volt per brush. Find the induce e.m.f and the armature current when the machine is connected Long compound.

A 250 V, compound generator has armature, series field and shunt felid resistance of 0.4 Q,0.20 and 125 Q respectively. If this generator supply10 Kw.at rated voltage. Ignore armature reaction and assuming a drop of 1 volt per brush. Find the induce e.m.f and the armature current when the machine is connected Long compound.

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 solve this problem step by step and illustrate your answer properly. Write your answer in a piece of paper please. Box the final answer.
Q2-A 4- pole lap-wound, 900 r.p.m shunt generator has armature and field resistances of 0.442 and 1752 respectively. The armature has 440 conductors and the flux per pole is 0.07 Wb. if the load resistance is 102 .Calculate the terminal voltage and load current delivered by the generato
Example : In a 110 V, d.c. compound generator, the resistance of the armature, shunt field and series field are 0.06 , 25 and 0.04 respectively. The load consists of 200 lamps each rated at 55 W, 110 V. Find the total e.m.f. generated and the armature current when the machine is connected in (a) long shun
3. If the terminal voltage of 220-V dc generator having armature resistance of 1 ohms. The induced emf produced is 200-V. The armature current for the above machine is a) 20 A b) -20 A c) -10 A d) 10 A
The armature of a 4 -polelap wound shunt generator has 400 conductors.The flux per pole is 0.05 Wb.The armature and field resistance are 0.05Qand 500. Find the speed of the machine when supplying 450 A at a terminal voltage of 250 V.
A d.c. shunt generator has shunt field winding resistance of 100 . It i supplying a load of 5 kW at a voltage of 250 V. If its armature resistance is 0.220 calculate the induced e.m.f. of generator. LOAD
Flux is exactly proportional to L2 times field current in a d.c generator. The generator operates at a speed of 200 revolutions per minute and has a flux of 30 mWb.f per pole. The generator is lap wound with 600 conductors in series; determine the e.m.f. produced. If the winding is wave wound, calculate the change in excitation current required to get the same voltage as previously stated. The machine has six poles.
1. A machine delivers power to the load at 220 V while being driven at 1,050 rpm. At this load, the armature circuit dissipates 650 W. The armature of a 6-pole separately excited dc generator is lap wound with 534 conductors. If the flux per pole of this generator is 30- mWb, determine the kW rating of the load served. Assume a total brush contact drop of 1.5 V.
The armature reaction occurs when a separately excited generator supplies rated load: Is always present Is always absent May be sometimes present None of the above
4. What for brushes are employed in DC generator? 5. What is the function of armature in a DC generator? 6. What is the function of commutator in a DC machine in generator action. 7 Whieh diffe u0ad in