A series motor has an armature resistance of 0.20 and a series field resistance of 0.302. It is connected to a 240V supply and at a particular load runs at 24rev/s when drawing 15A from the supply. Calculate the speed of the motor when the load is changed such that the current is increased to 30A. ANSWER: rev/sec Blank 1

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter12: Power System Controls
Section: Chapter Questions
Problem 12.6P
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A series motor has an armature resistance of 0.20 and a series field resistance of 0.30. It is connected to a 240V supply and at a
particular load runs at 24rev/s when drawing 15A from the supply. Calculate the speed of the motor when the load is changed such
that the current is increased to 30A.
ANSWER:
rev/sec
Blank 1
Transcribed Image Text:A series motor has an armature resistance of 0.20 and a series field resistance of 0.30. It is connected to a 240V supply and at a particular load runs at 24rev/s when drawing 15A from the supply. Calculate the speed of the motor when the load is changed such that the current is increased to 30A. ANSWER: rev/sec Blank 1
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