3. The 35-kW, 400-V dc shunt generator has armature and shunt field winding resistances of 0.19 Q and 80 N respectively. If the generator is operating at 87.35% loading, find the terminal voltage when: a. the flux is increased by 6% and the speed is decreased by 9% b. the flux is decreased by 7% and the speed is increased by 8%

3. The 35-kW, 400-V dc shunt generator has armature and shunt field winding resistances of 0.19 Q and 80 N respectively. If the generator is operating at 87.35% loading, find the terminal voltage when: a. the flux is increased by 6% and the speed is decreased by 9% b. the flux is decreased by 7% and the speed is increased by 8%

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

2. A 220-V long-shunt compound d.c. generator is supplying 100 A to a load. The resistances of the shunt field, the series field, and the armature are 50 ohms, 0.025 ohm, and 0.05 ohm respectively. Find the following:
Shunt dc generator supplies 220 V at 90A .The resistance of Armature and shunt field winding are 0.04 and 110 ohm respectively.Assume the total brush drop is 2 V. Your answer the emf generated is. . O 215 V O 220 V 225 V O 230 V If An 4-pole lab wound dc generator has 120 slot at each 8 conductors per slot,flux is 0.03 Wb. the speed of dc machine is...
A 8-pole dC generator running at 1,200 rpm, and with a flux of 25 m Wb per pole generates 440 V. Calculate the number of conductors, if the armature is : (i) lap-wound, (ii) wave- wound.
please help
Q2
q4 b
A 4 pole generator with wave wound armature has 50 slots each having 26 conductors. The flux per pole is 0.01 Wb. (i) At what speed must the armature rotate to give an induced EMF of 230V is, (ii) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is,
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.
A 4 pole generator with wave wound armature has 52 slots each having 22 conductors. The flux per pole is 0.01 Wb. (i) At what speed must the armature rotate to give an induced EMF of 230V is, (ii) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is,
the armature of a 12 pole wave wound dc shunt generator has 50 slots with 12 conductors per slot. the generatoris running at a speed of 625 rpm and supplies a resistive load of 15 ohm at a terminal voltage 350v. the armature and the field reisitance are0.5 ohm and 70 ohm respectively. find the armature current,generated emf and flux per pole
A six-pole dc machine has an armature connected as a lap winding. The armature has 32 slots with six conductors per slot. The armature is rotated at 600 rpm, and the flux per pole is 30 mWb. Calculate the induced voltage. 1
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