Problem 1.A 400 KW, 600 V dc shunt generator has an armatureresistance of 0.03 2, the field resistance is 48 Q. The straypower loss (SPL) at rated voltage and speed is 7,200 watts.Calculate:a. Full-load efficiencyb. Load at Max. Efficiencyc. Value of Max. Efficiency

In this question, Find the full load efficiency, Load at maximum efficiency Maximum efficiency…

Answered: Problem 1. A 400 KW, 600 V dc shunt…

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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The supplies 11 kw at a terminal voltage of 200 v. The resistances of armature, shunt field and the series field are 0.05, 100 and 0.06 ohm respectively at A long-shunt generator The overall efficiency at the above load is 88%. running at 1000 r.p.m. Find: (a) Pcu losses. (b) P iron and friction losses. (c) The torque exited by the prime mover.
A shunt generator delivers 195 A at a terminal p.d. of 250 V. The armature resistance and shunt field resistance are 0.02 2 and 50 2 respectively. What is the value of generated e.m.f. ?
4. The commercial efficoency of a shunt generator is maximum when its variable kon oquals...loss. a. constant e. iroa b. stray d. friction and windage 5. The basic requirement of a d.c. armature winding is that it must be a. a closed one b.a lap winding e.a wave winding d. either (b) or (e).
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A 8-pole dC generator running at 1,200 rpm, and with a flux of 25 m Wb per pole generates 440 V. Calculate the number of conductors, if the armature is : (i) lap-wound, (ii) wave- wound.
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Q2-A 4- pole lap-wound, 900 r.p.m shunt generator has armature and field resistances of 0.442 and 175Q respectively. The armature has 440 conductors and the flux per pole is 0.07 Wb. if the load resistance is 102.Calculate the terminal voltage and load current delivered by the generato
5. A 20-kW, 400-V shunt DC generator has armature and shunt field winding resistances of 0.30 Q and 80 Q, respectively. The total mechanical loss is 1.7 kW. Determine the efficiency of the generator if the voltage regulation is 2.1%.
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15. Which of the following conductors in a typical separable connection plug and receptacle has a firstmake, last-break feature?A. The neutral grounded conductorB. The equipment grounding conductorC. A center wye conductorD. The grounded delta conductor
1A. Which of the following is/are a method of providing field excitation for a DC generator. a) separately excited shunt b) self-excited series c) self-excited shunt d) all of the above 1B. Which type of field winding typically has the higher resistance? a) series b) shunt

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Problem 1. A 400 KW, 600 V dc shunt generator has an armature resistance of 0.03 Q, the field resistance is 48 Q. The stray power loss (SPL) at rated voltage and speed is 7,200 watts. Calculate: a. Full-load efficiency b. Load at Max. Efficiency c. Value of Max. Efficiency