B) Develop an expression, in terms of the generated e.m.f. and the sequence impedances (ZI, Z2 and Z0), for the fault current when an earth fault occurs on phase (A) of a three-phase generator, with an carthed star point. Show also that the voltage to earth of the sound phase (B) at the point of fault is given by: -- N5E,(Z; - aZ,) where a is the 120 operator. .+7+7

B) Develop an expression, in terms of the generated e.m.f. and the sequence impedances (ZI, Z2 and Z0), for the fault current when an earth fault occurs on phase (A) of a three-phase generator, with an carthed star point. Show also that the voltage to earth of the sound phase (B) at the point of fault is given by: -- N5E,(Z; - aZ,) where a is the 120 operator. .+7+7

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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