Q.2: A 3-phase 500V, 50 Hz star-connected synchronous machine has asynchronous impedance of ( 0.4+j4) 2 Using circle diagram, calculate the load angle, armature current and power factor if the alternator is developing (12) Kw at rated voltage and an excitation voltage of (a) 400V (b) 600V Solve the above if the alterantor is delivering (15) Kw at rated voltage.

Q.2: A 3-phase 500V, 50 Hz star-connected synchronous machine has asynchronous impedance of ( 0.4+j4) 2 Using circle diagram, calculate the load angle, armature current and power factor if the alternator is developing (12) Kw at rated voltage and an excitation voltage of (a) 400V (b) 600V Solve the above if the alterantor is delivering (15) Kw at rated voltage.

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

Chapter3: Power Transformers

Section: Chapter Questions

Problem 3.24P: For Problem 3.18, the motor operates at full load, at 0.8 power factor leading, and at a terminal...

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