Power rating= elPower rating =(2e) x (2/) = 4elResistance Between X and Y=r/4Resistance Between M and N=r(a) Lap-winding(b) Wave-windingFig. 26.67. Resistances for different methodsTutorial Problem No. 26.21.A 4-pole, d.c. generator has a wave-wound armature with 792 conductors. The flux per pole is1751.3 g.m.)0.0121 Wb. Determine the speed at which it should be run to generate 240 V on no-load.2 A 20 kW compound generator works on full-load with a terminal voltage of 230 V. The armature,series and shunt field resistances are 0.1, 0.05 and 115 2 respectively. Calculate the generated e.m.f. whenthe generator is connected short-shunt.[243,25 V] (Elect. Engg. Madras Univ. April, 1978)3. A d.c. generator generates an e m.f of 520 V I has 2,000 armature conductors, flux per pole of0.013 Wb, speed of 1200 r.p.m. and the armature winding has four parallel paths. Find the number of poles[4] (Elect. Technology, Aligarh U'niv 19784.When driven at 1000rp.m with a thux per pole of 0.02 Wb, a d.c. generator has an c.mf. of 200 VIf the speed is increased to T100rp.m.and at the same ime the flux per pole is reduced to 0.019 Wh per pole209N

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1 A 4-pole, d.c. generator has a wave-wound armature with 792 conductors. The flux per pole is 0121 Wb. Determine the speed at which it should be run to generate 240 V on no-load. 1751.3 g.m.

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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