A 30 synchronous machine has the following parameters: X₁-0.9 pu, X,-0.65 pu The field current of the synchronous machine is adjusted to produce an open-circuit voltage of 1 pu and the machine is synchronized to an infinite bus Determine the maximum per- unit torque that can be applied slowly without losing synchronism. Find the stator current (1₂) and the power factor at this maximum torque condition. Draw the phasor diagram corresponding to this case.

A 30 synchronous machine has the following parameters: X₁-0.9 pu, X,-0.65 pu The field current of the synchronous machine is adjusted to produce an open-circuit voltage of 1 pu and the machine is synchronized to an infinite bus Determine the maximum per- unit torque that can be applied slowly without losing synchronism. Find the stator current (1₂) and the power factor at this maximum torque condition. Draw the phasor diagram corresponding to this case.

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

Chapter11: Transient Stability

Section: Chapter Questions

Problem 11.3P

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