Find the critical clearing angle for the system shown in the figure 3 for a three phase fault at the point indicated. The fault is cleared by switching off of the faulted transmission line. The generator is delivering 1.0pu power under pre-fault conditions. Draw the power curves illustrating the equal criterion method. G 10.25 |E'|-1.2 10.15 j0.15 10.28 Σ. j0.14 50.14 10.15 10.15 0.15 IVI=1.0<0

Find the critical clearing angle for the system shown in the figure 3 for a three phase fault at the point indicated. The fault is cleared by switching off of the faulted transmission line. The generator is delivering 1.0pu power under pre-fault conditions. Draw the power curves illustrating the equal criterion method. G 10.25 |E'|-1.2 10.15 j0.15 10.28 Σ. j0.14 50.14 10.15 10.15 0.15 IVI=1.0<0

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...

See similar textbooks

Similar questions

6. A 3 phase fault occurs at point F as shown in figure. Determine the critical clearing anglefor the system. The generator is delivering 1.0 p.u power under prefault conditio
pls solve it before 10 min
This question is about electrical power material and I want to solve it in 20 minutes
powe system Q8
For the circuit shown, the normal operating values shown are known. If a symmetrical three-phase fault occurs at node 1, find, exactly:(a) The short-circuit current in phase a. b) The voltage at node 2 during the fault. c) The current from the motor to the fault, during the fault.
A 3 phase fault occurs at point F as shown in figure. Determine the critical clearing anglefor the system. The generator is delivering 1.0 p.u power under prefault condition.
The reactance of the synchronous generator after sometime of the fault cleared is ............
Description In the particular case of figure below derive both the critical clearing angle and the critical clearing time. P, = Pmaz sin d Pm A1 do der Smar A generator having H = 6.R MJ/MVA is delivering power of 1.0 per unit to an infinite bus through a purely reactive network when the occurrence of a fault reduces the generator output power to zero. The maximum power that could be delivered is 2.5S per unit. When the fault is cleared, the original network conditions again exist. Determine the critical clearing angle and critical clearing time. (Roll=PQRS)
The severity of line-to-ground and 3-phase faults at the terminals of an unloaded star connected synchronous generator is to be same. If the terminal voltage is 1 p.u. and X, = X2 = j0.35 p.u., Xgo = j0.05 p.u., for the alternator, then the required inductive reactance for neutral grounding is (a) X = j0.1 p.u. (b) Xn =j0.015 p.u. (c) Xạ =j0.15 p.u (d) Xn =j02 p.u.
As per bartleby honor code I can submit 3 questions So please answer all
A 13.2 kV, 60 Hz, 3-phase synchronous generator is connected in star and its neutral point is earthed while inductance per phase is 0.02 Henry. The generator is connected to a bus bar through a circuit breaker. The distributed capacitance up to circuit breaker between phase and neutral is 0.015 micro Farad. Determine the following: (i) Peak re-striking voltage (in kV) across the contact of circuit breaker; (ii) Frequency of oscillations (in kHz); (iii) Time to occurs first peak re-striking voltage (in micro second) and (iv) The average rate of rise of re-striking voltage (in mega volts per second)
urgent required.