A series motor runs at (800 r.p.m) when the voltage is (400 V) and the current is (25 A). The armature resistance is (O.4 Q) and the series field resistance is (0.2 Q). Determine the resistance to be connected in series to reduce the speed to (600 r.p.m) with same current 3.85 O 3 O 4.25 O 2.85 O
A series motor runs at (800 r.p.m) when the voltage is (400 V) and the current is (25 A). The armature resistance is (O.4 Q) and the series field resistance is (0.2 Q). Determine the resistance to be connected in series to reduce the speed to (600 r.p.m) with same current 3.85 O 3 O 4.25 O 2.85 O
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 12.4P
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