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 220 V 225 V 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....

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 220 V 225 V 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....

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...

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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 62 mWb.f per pole. The generator is lap wound with 1500 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.
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A 4 pole generator with wave wound armature has 54 slots each having 28 conductors. The flux per pole is 0.01 Wb. () At what speed must the armature rotate to give an induced EMF of 220V is, (i) What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is,
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.
An 8- pole dc generator has 500 armature conducters and a useful flux of 0.05 Wb. A. What will be the emf generated, if it is lap- connected and runs at 1200 rpm? B. What must be the speed at which it is to be driven to produce the same emf if it is wave wound.
A 4 pole armature of a DC machine has 175 conductors and a flux per pole of 0.1 wb. Find the EMF generated when running at 600 rpm, when the armature is Lap wound.
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
A 6 pole generator with wave wound armature has 58 slots each having 20 conductors. The flux per pole is 0.01 Wb. () At what speed must the armature rotate to give an induced EMF of 230V is, GD What will be the voltage developed, if the winding is lap connected and the armature rotates at the same speed is,
Develop a simple Lap Windings for DC MACHINE. Provide a winding table Given: 4 Pole, Pole Pitch=9, progressive Windings