A shunt generator has field resistance of 602 when the generator delivers 60 kw he terminal voltage is 120 V while the generated E.M.F is 135V. Determine: 1- The armature circuit resistance 1.A shunt generator has a field resistance 60 2 when generator delivers 20 kW the terminal voltage 135V while the armature circuit resistance is 0.28 2. Determine: 1- The generator E.M.F 2- Find efficiency of DC generator 2- Electrical efficiency

A shunt generator has field resistance of 602 when the generator delivers 60 kw he terminal voltage is 120 V while the generated E.M.F is 135V. Determine: 1- The armature circuit resistance 1.A shunt generator has a field resistance 60 2 when generator delivers 20 kW the terminal voltage 135V while the armature circuit resistance is 0.28 2. Determine: 1- The generator E.M.F 2- Find efficiency of DC generator 2- Electrical efficiency

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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Student Number: 1700123
A long-shunt compound generator supplies 50 kW at 230 V. the total field- and armature circuit resistances are 46 ohms and 0.03 ohms , respectively. The brush-contact drop is 2 V. Determine the percent voltage regulation. Neglect the armature reaction.
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.
q. 8
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. ?
electromechanical energy conversion question. please answer it clearly.
A lap connected 6 pole DC generator has an armature conductors of 500 and is driven at 600 rpm. If the flux per pole is 15 mWb, then the generated e.m.f is,؟ 250 V 225 V 75 V 100 V
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2. A 220-V long-shunt compound d.c. generator is supplying 100 A to a load. The resistances of the shunt field, the series field, and the armature are 50 ohms, 0.025 ohm, and 0.05 ohm respectively. Find the following:
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.
A long shunt compound generator has armature shunt field and series field resistances of 0.05, 100 and 0.3 ohms respectively. When supplying a load of 8 kw at a terminal voltage of 250 V, the input power supplied by the driving motor to the generator is 10.4 kw. Calculate a. the generated emf b. the generator efficiency. Write the solution completely.
A 240 V. D.C. A shunt generator supplies a full load current of 60 A. The armature and shunt field resistances are 0.1 ohm and 120 respectively. If the iron loss is 400 W and the mechanical loss is 500 W, find the full load efficiency.