A 4 pole, lap wound d.c. generators has 42 coils with & turns per coils.It isdriven at 1120 r.p.m. If useful flux per pole is 21 mWb, calculate the generatede.m.f. Find the speed at which it is to be driven to generate the same e.m.f.ascalculated above, with wave wound armature.

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Answered: A 4 pole, lap wound d.c. generators has…

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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An 6-pole d.c. generator has 550 armature conductors, and a useful flux of 40 mWb per pole. What will be the e.m.f. generated if it is lap-connected and runs at 1200 rpm? What must be the speed at which it is to be driven produce the same e.m.f. if it is wave-wound? Generated voltage speed
Q2\A/ A 8-pole de generator has 500 armature conductors and a useful flux of 0.05 wb. What will be the e.m.f. generated, if it is lap-connected and runs at 1,200 r.p.m.? What must be the which it is to be driven to produce the same e.m.f., if it is wave-wound?
An 8-pole d.c. generator has 290 armature conductors, and a useful flux of 10 mWb per pole. What will be the e.m.f. generated if it is lap-connected and runs at 1280 rpm? What must be the speed at which it is to be driven produce the same e.m.f. if it is wave-wound?
An 6-pole d.c. generator has 445 armature conductors, and a useful flux of 46 mWb per pole. What will be the e.m.f. generated if it is lap- connected and runs at 1400 rpm? What must be the speed at which it is to be driven produce the same e.m.f. if it is wave-wound? Eg Speed
An 6 pole, wave connected armature has 520 conductors and its generated e.m.f is 125 V. If the machine is driven at 400 rpm, then the flux per pole in Wb is,
Type your question here Q1// Answer the following question. 1- A 8-pole a separately excited generator, having the wave-wound armature winding has 16 slots, when running at 600 r.p.m. has a terminal voltage of 400 V and an induced voltage of 414.72 V. The armature resistance is 0.12, the flux per pole is 36 mWb, and there is a brush contact voltage drop of 1V at each brush. Calculate the value of armature current and the number of conductors for each slot. 2- A six-pole, DC shunt generator is wave-connected, supplies a load of A 12 kW, 240 V and an induced voltage of 250 V. If this machine is now lap-connected and flux per pole increasing by 20%, all other things remaining the same, calculate the e.m.f generated and load current.
A 4 pole armature of a DC mạchine 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. Answer:
An 6-pole d.c. generator has 290 armature conductors, and a useful flux of 12 mWb per pole. What will be the e.m.f. generated if it is lap- connected and runs at 1010 rpm? What must be the speed at which it is to be driven produce the same e.m.f. if it is wave-wound? Generated voltage speed
The e.m.f. generated in a D.C. generator is directly proportional to Speed of armature Flux/pole A and B. O Number of poles
please help
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, lap wound d.c. generators has 42 coils with & turns per coils.It is driven at 1120 r.p.m. If useful flux per pole is 21 mWb, calculate the generated e.m.f. Find the speed at which it is to be driven to generate the same e.m.f.as calculated above, with wave wound armature.