7.10 A 10-kVA, 380-V, 60-Hz, 2-pole, three-phase, Y-connected, synchronousgenerator delivers the rated load at 0.8 pf lagging. The synchronous impedanceis 1.2 + j4 R/phase. Determine (a) the synchronous speed, (b) thegenerated voltage per phase, and (c) the efficiency if the fixed loss is 1 kW

7.10 A 10-kVA, 380-V, 60-Hz, 2-pole, three-phase, Y-connected, synchronousgenerator delivers the rated load at 0.8 pf lagging. The synchronous impedanceis 1.2 + j4 R/phase. Determine (a) the synchronous speed, (b) thegenerated voltage per phase, and (c) the efficiency if the fixed loss is 1 kW

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

Chapter7: Symmetrical Faults

Section: Chapter Questions

Problem 7.3MCQ: The amplitude of the sinusoidal symmetrical ac component of the three-phase short-circuit current of...

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Question

7.10 A 10-kVA, 380-V, 60-Hz, 2-pole, three-phase, Y-connected, synchronous
generator delivers the rated load at 0.8 pf lagging. The synchronous impedance
is 1.2 + j4 R/phase. Determine (a) the synchronous speed, (b) the
generated voltage per phase, and (c) the efficiency if the fixed loss is 1 kW

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