(b) A 50 Hz synchronous generator with inertia constant H = 6.2 MJ/MVA is connected to an infinite bus through a purely reactive circuit, as illustrated in Figure Q5(b). The generator is delivering real power P3 = 0.950 pu and Q3 = 0.713 pu to the infinite bus at a voltage of V3 = 1.0 pu. A temporary three-phase fault occurs at the receiving end of Line 1 at point F. When the fault is cleared, both lines remain following the disturbance. Propose the stability limit of the system by determining the critical clearing angle (8c) and the critical fault clearing time (te) for the given disturbance. 2 3 Generator Line 1 Infinite Bus Transformer XLine 1= 0.5 G Line 2 Xa = 0.3 XT= 0.32 XLine 2 = 0.37 Figure Q5(b) 8.
(b) A 50 Hz synchronous generator with inertia constant H = 6.2 MJ/MVA is connected to an infinite bus through a purely reactive circuit, as illustrated in Figure Q5(b). The generator is delivering real power P3 = 0.950 pu and Q3 = 0.713 pu to the infinite bus at a voltage of V3 = 1.0 pu. A temporary three-phase fault occurs at the receiving end of Line 1 at point F. When the fault is cleared, both lines remain following the disturbance. Propose the stability limit of the system by determining the critical clearing angle (8c) and the critical fault clearing time (te) for the given disturbance. 2 3 Generator Line 1 Infinite Bus Transformer XLine 1= 0.5 G Line 2 Xa = 0.3 XT= 0.32 XLine 2 = 0.37 Figure Q5(b) 8.
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Synchronous Generator
In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.
Salient Pole Rotor
Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.
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