Electric Motor Control
10th Edition
ISBN: 9781133702818
Author: Herman
Publisher: CENGAGE L
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Chapter 57, Problem 8SQ
(a)
To determine
Explain whether the resistance of the rheostat is to be increased or decreased to increase the generator voltage.
(b)
To determine
Explain the condition of current change in the generator’s shunt field winding to increase the generator voltage.
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Electric Motor Control
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, electrical-engineering and related others by exploring similar questions and additional content below.Similar questions
- 1. How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current (IL)?arrow_forwardQuestions:-1. What is the basic different between the internal characteristics and the external characteristics of d.c shunt generator? 2. For which reasons its not possible to develop rated voltage of d.c shunt generator, both in unloaded and loaded conditions? 3- What are the reasons of fall of terminal voltage of a d.c. shunt generator?arrow_forward13. How should the armature be laminated for the purpose ? (DC GENERATOR QUESTION)arrow_forward
- What is the voltage regulation of a DC generator proportional to?arrow_forward1. How does loading of the Generator affect the Generator’s Terminal Voltage (VT) and Load Current (IL)?2. Write down the Voltage equation of a Separately excited DC Generator.3. What is the reason for drop in Generator’s Terminal voltage, from No load to Full load?arrow_forwardExplain, with the aid of suitable diagrams, how incorrectly positionedbrushes can cause the voltage of a generator to be different for the two directions of rotation ?arrow_forward
- What are the reasons for the drop in terminal voltage of self excited shunt generator When loaded?arrow_forward17. What is meant by build-up of a generator ? (DC GENERATOR QUESTION)arrow_forwardQuestion 1: Why is the voltage decresed at no-load operation? What is that voltage called? Question 2: Does the voltage increase with the increasing load? Why? Question 3: In which position the voltage decreased with the increasing load? Explain the reason. Question 4: Does the voltage change when a parallel rheostat is connected to the series excitation windings? Explain the reason. Question 5: Sketch the loading curve of the series generator depending on the values recorded.arrow_forward
- a) Explain the main components of AC generator?b) What conditions are necessary for paralleling two synchronous generators?arrow_forwardIf the armature resistance of a 3-phase, 318.75 kVA, 2300-V synchronous generator is 0.35 ohms per phase, the synchronous reactance is It is 1.2 ohms. Calculate the excitation voltage and voltage regulation for the following load cases: a) Full load, back power factor of 0.8 and rated voltage. b) Full load, forward power factor of 0.6 and rated voltage.arrow_forwardDiscuss the reason why the generator terminal voltage varies with the electrical load?arrow_forward
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