1 A 50HZ, synchronous generator is connected to infinite bus through a transmission line. The pu reactanceof generator and transformer line are j0.4 and j0.2 respectively. The no load Voltage of generator is 1.2puand infinite bus-lpu. Inertia constant is 4MJ/MVA. Determine frequency of natural oscillation if generatoris loaded frequency to 50% ofP,Ka) 1.31 Hz, 1.09 Hz(c) 1.01 Hz, 1.09 Hzubiunand 80% of P, and small disturbance is appliedmaxmax(b) 1.31 Hz, 1.29 Hz(d) 1.01 Hz, 1.29 Hz

Given internal voltage = 1.2 P.u. Terminal voltage = 1p.u. Total reactance = 0.6 p.u.

A 50HZ, synchronous generator is connected to infinite bus through a transmission line. The pu reactance of generator and transformer line are j0.4 and j0.2 respectively. The no load Voltage of generator is 1.2pu and infinite bus=Ipu. Inertia constant is 4MJ/MVA. Determine frequency of natural oscillation if generator is loaded frequency to 50% of P Ka) 1.31 Hz, 1.09 Hz (c) 1.01 Hz, 1.09 Hz and 80% of P and small disturbance is applied max max (b) 1.31 Hz, 1.29 Hz (d} 1.01 Hz, 1.29 Hz

A 50HZ, synchronous generator is connected to infinite bus through a transmission line. The pu reactance of generator and transformer line are j0.4 and j0.2 respectively. The no load Voltage of generator is 1.2pu and infinite bus=Ipu. Inertia constant is 4MJ/MVA. Determine frequency of natural oscillation if generator is loaded frequency to 50% of P Ka) 1.31 Hz, 1.09 Hz (c) 1.01 Hz, 1.09 Hz and 80% of P and small disturbance is applied max max (b) 1.31 Hz, 1.29 Hz (d} 1.01 Hz, 1.29 Hz

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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