Machine Q4 The O.C.C. of a separately excited d.c. generator driven at 1000 r.p.m. is as followsField current (A)E.M.F. (V)The machine is connected as a shunt generator and driven at 1100 r.p.mand the armatureresistance is 0.1Q. Find: A1- The residual magnetism for 2-pole armature with 500 conductors. 22- The e.m.f. to which the maachine will excite when the field resistance is 800. 162.3- The additional resistance required in the field circuit to reduce e.m.f. to 200V 2.654- The speed at which an e.m.f. of 220V can be obtained with field circuit resistance of00.511.522.53.3.520 54107152185210230245420. 3380Ω.5- The volts lost due to armature reacțion when 100A are passing in the armature aț aterminal voltage of 180V.

According to the guidelines we need to solve only the first three sub-parts. According to the…

Q4 The O.C.C. of a separately excited d.c. generator driven at 1000 r.p.m. is as follows Field current (A) E.M.F. (V) The machine is connected as a shunt generator and driven at 1100 r.p.mand the armature resistance is 0.1Q. Find: 1- The residual magnetism for 2-pole armature with 500 conductors. 2- The e.m.f. to which the machine will excite when the field resistançe is 800. 162. 3- The additional resistance required in the field circuit to reduce e.m.f. to 200V 7.65 4- The speed at which an e.m.f. of 220V can be obtained with field circuit resistance of 80Ω. 5- The yolts lost due to armature reaction when 100A are passing in the armature aț a terminal voltage of 180V. 1.5 2 2.5 3 3.5 20 54 107 152 185 210 230 245 420. S5

Q4 The O.C.C. of a separately excited d.c. generator driven at 1000 r.p.m. is as follows Field current (A) E.M.F. (V) The machine is connected as a shunt generator and driven at 1100 r.p.mand the armature resistance is 0.1Q. Find: 1- The residual magnetism for 2-pole armature with 500 conductors. 2- The e.m.f. to which the machine will excite when the field resistançe is 800. 162. 3- The additional resistance required in the field circuit to reduce e.m.f. to 200V 7.65 4- The speed at which an e.m.f. of 220V can be obtained with field circuit resistance of 80Ω. 5- The yolts lost due to armature reaction when 100A are passing in the armature aț a terminal voltage of 180V. 1.5 2 2.5 3 3.5 20 54 107 152 185 210 230 245 420. S5

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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