PROBLEMS 3.1. Determine the highest speed at which two generators mounted on the same shaft can be driven so that the frequcncy of onc gencrator is 60 Hz and the frequency of the other is 25 Hz. How many polcs does each machine have? 3.2. The three-phase synchronous generator described in Example 3.1 is operated at 3600 rpm and supplies a unity power-factor load. If the terminal voltage of the machine is 22 kV and the field current is 2500 A, determine the line current and the total power consumption of the load.

PROBLEMS 3.1. Determine the highest speed at which two generators mounted on the same shaft can be driven so that the frequcncy of onc gencrator is 60 Hz and the frequency of the other is 25 Hz. How many polcs does each machine have? 3.2. The three-phase synchronous generator described in Example 3.1 is operated at 3600 rpm and supplies a unity power-factor load. If the terminal voltage of the machine is 22 kV and the field current is 2500 A, determine the line current and the total power consumption of the load.

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 12.11P

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