Q1) A 6 pole, lap wound, compound DC generator has an armature resistance of 0.25 Q, series field resistance of 0.152 and a shunt field resistance of 250 Q. The generator supplies the following loads as follows, Load 1 (L1): 40 Lamps, each lamp is rated at 60 W, at a terminal voltage of 240 V. Load 2 (L2): A 2.4 KW heater at a terminal voltage of 240 V. Load 3 (L3): A resistive load that draws a current of 80 A at a terminal voltage of 240 V. The machine has 1000 conductors, assume short shunt connection, a) Calculate the total load current. b) Find the generated voltage, Eg and total load power. c) If all lights are turned OFF and L2 is switched OFF, calculate the generated voltage of the machine, Eg, and the speed of the machine,. if flux is 30 mwb/pole.

Q1) A 6 pole, lap wound, compound DC generator has an armature resistance of 0.25 Q, series field resistance of 0.152 and a shunt field resistance of 250 Q. The generator supplies the following loads as follows, Load 1 (L1): 40 Lamps, each lamp is rated at 60 W, at a terminal voltage of 240 V. Load 2 (L2): A 2.4 KW heater at a terminal voltage of 240 V. Load 3 (L3): A resistive load that draws a current of 80 A at a terminal voltage of 240 V. The machine has 1000 conductors, assume short shunt connection, a) Calculate the total load current. b) Find the generated voltage, Eg and total load power. c) If all lights are turned OFF and L2 is switched OFF, calculate the generated voltage of the machine, Eg, and the speed of the machine,. if flux is 30 mwb/pole.

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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Concept explainers

DC Generator

An electromechanical machine which converts input mechanical energy to respective output electric energy is called a generator.

Question

Q1) A 6 pole, lap wound, compound DC generator has an armature resistance of 0.25 2, series
field resistance of 0.152 and a shunt field resistance of 250 Q. The generator supplies the
following loads as follows,
Load 1 (L1): 40 Lamps, each lamp is rated at 60 W, at a terminal voltage of 240 V.
Load 2 (L2): A 2.4 KW heater at a terminal voltage of 240 V.
Load 3 (L3): A resistive load that draws a current of 80 A at a terminal voltage of 240 V.
The machine has 1000 conductors, assume short shunt connection,
a) Calculate the total load current.
b) Find the generated voltage, Eg and total load power.
c) If all lights are turned OFF and L2 is switched OFF, calculate the generated voltage of
the machine, Eg, and the speed of the machine,. if flux is 30 mwb/pole.

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