(b) Two three-phase, 6.6-kV, Y-connected synchronous generators, operating in parallel, supply a load of 3000 kW at 0.8 power factor lagging. The synchronous impedance per phase of machine A is 0.5+j100, and that of machine B is 0.4+j120. The excitation of machine A is adjusted so that it delivers 150 A at a lagging power factor, and the governors are set such that the load is shared equally between the two machines. For each machine, determine: (i) Armature current (ii) Power factor (iii) Excitation voltage

(b) Two three-phase, 6.6-kV, Y-connected synchronous generators, operating in parallel, supply a load of 3000 kW at 0.8 power factor lagging. The synchronous impedance per phase of machine A is 0.5+j100, and that of machine B is 0.4+j120. The excitation of machine A is adjusted so that it delivers 150 A at a lagging power factor, and the governors are set such that the load is shared equally between the two machines. For each machine, determine: (i) Armature current (ii) Power factor (iii) Excitation 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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.41P

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