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A generator operating at 50 Hz delivers 1 pu power to an infinite busbar through a network with negligible resistance. The maximum transferrable power at pre-fault condition is 2.0 pu. a) Calculate the load angle before the fault occurred a) On the occurrence of fault, the power drops to 0.5 pu which reduces the maximum power transferrable to 0.4 pu. After the clearance of the fault the power rises to 1.5 pu. Calculate the following: load angle after the fault has been cleared ii) i) load angle critical clearing angle iii) iv) Comment on your answers to iv) and v) area of acceleration area of deceleration

A generator operating at 50 Hz delivers 1 pu power to an infinite busbar through a network with negligible resistance. The maximum transferrable power at pre-fault condition is 2.0 pu. a) Calculate the load angle before the fault occurred a) On the occurrence of fault, the power drops to 0.5 pu which reduces the maximum power transferrable to 0.4 pu. After the clearance of the fault the power rises to 1.5 pu. Calculate the following: load angle after the fault has been cleared ii) i) load angle critical clearing angle iii) iv) Comment on your answers to iv) and v) area of acceleration area of deceleration

Introductory Circuit Analysis (13th Edition)
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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A generator operating at 50 Hz delivers 1 pu power to an infinite busbar through a network with negligible resistance. The maximum transferrable power at pre-fault condition is 2.0 pu. a) Calculate the load angle before the fault occurred a) On the occurrence of fault, the power drops to 0.5 pu which reduces the maximum power transferrable to 0.4 pu. After the clearance of the fault the power rises to 1.5 pu. Calculate the following: load angle after the fault has been cleared ii) i) load angle critical clearing angle iii) iv) Comment on your answers to iv) and v) area of acceleration area of deceleration
Transcribed Image Text:A generator operating at 50 Hz delivers 1 pu power to an infinite busbar through a network with negligible resistance. The maximum transferrable power at pre-fault condition is 2.0 pu. a) Calculate the load angle before the fault occurred a) On the occurrence of fault, the power drops to 0.5 pu which reduces the maximum power transferrable to 0.4 pu. After the clearance of the fault the power rises to 1.5 pu. Calculate the following: load angle after the fault has been cleared ii) i) load angle critical clearing angle iii) iv) Comment on your answers to iv) and v) area of acceleration area of deceleration
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