Question 3 Q1. A shunt generator has an induced voltage on open circuit of 127 V, when the machine isloaded, terminal voltage is 120V. Find the load current if the field resistance is 150 and armatureresistance is 0.0252. Ignore armature reaction.Q2. A 250V d.c shunt Machine has line current of 80A. it has armature and field resistance of 0.1and 1252 respectively. Calculate power developed in armature when running as2.1 Generator2.2 Motor12 == 80 A.Q3. A 230 V dc shunt Motor runs at 800rpm and takes armature current of 50A. Find the resistanceto be added to the field circuit to increase speed to 1000rpm at an armature current of 80A. Assumearmature resistance 0.152 and field winding resistance 2500r₂ =12502та - аллQ4. Compute the efficiency of 100 kW, 250-V, 6-pole, 1000-rpm long shunt compoundGenerator. The Generator has the following parameters: Armature resistance Ra 0.015 2,Series field resistance Rs =0.010 2 and Shunt field resistance Rshf= 100.00, Total rotationallosses = 4000 W. Assume stray losses to be 1% of the output and a brush drop of 2 volts.Y 800 rpmY₂ = 100D UPF = 80 AV₂ - Taha1/4-In FaQ5.A 10-hp 230-V DC series motor has a line current of 37 A and a rated speed of 1200 rpm.The armature and series field resistances are 0.4 2 and 0.2 2 respectively. The total brushvoltage drop is 2 V. Calculate the following:5.1 Speed at a line current of 20 A.5.2 No-load speed when the line current is 1 A.5.3 Speed at 150% of the rated load when the line current is 60 A and the series field flux is125% of the full load flux.=WN

Answered: Image /qna-images/answer/384f179c-61c6-4228-9318-b72e06bb646c.jpg

Q3. A 230 V dc shunt Motor runs at 800rpm and takes armature current of 50A. Find the resistance to be added to the field circuit to increase speed to 1000rpm at an armature current of 80A. Assume armature resistance 0.152 and field winding resistance 25092 Y 800 rpm Fa₁ = 50 pr Y₁ = 100D 80 A

Q3. A 230 V dc shunt Motor runs at 800rpm and takes armature current of 50A. Find the resistance to be added to the field circuit to increase speed to 1000rpm at an armature current of 80A. Assume armature resistance 0.152 and field winding resistance 25092 Y 800 rpm Fa₁ = 50 pr Y₁ = 100D 80 A

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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