40% Part B: It the load Speed-T orque characteristics (including the losses) is described by following equation: TL= |11.I+(5/150) Nr in Fig.1. Determine the speed control range(maximum range) for three of th cases: a- Reducing the stator voltage using autotransformer. b- Inserting extermal rotor resistance. c- Reducing the input voltage by 35%.

40% Part B: It the load Speed-T orque characteristics (including the losses) is described by following equation: TL= |11.I+(5/150) Nr in Fig.1. Determine the speed control range(maximum range) for three of th cases: a- Reducing the stator voltage using autotransformer. b- Inserting extermal rotor resistance. c- Reducing the input voltage by 35%.

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 12.12P

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