The OCC is measured by increasing the field current in steps from zero to some maximum value, and recording the corresponding values of armature emf. If now the current is decreased from maximum to zero, the emf values will be different; why?
The OCC is measured by increasing the field current in steps from zero to some maximum value, and recording the corresponding values of armature emf. If now the current is decreased from maximum to zero, the emf values will be different; why?
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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The OCC is measured by increasing the field
current in steps from zero to some maximum value, and recording the corresponding values of armature emf. If now the current is decreased from maximum to zero, the emf values will be different; why?
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