A 50 Hz, 11KV, 3-ph, alternator with earthed neutral has a reactance of 5 Ω\ ph and is connected to bus bar through a C.B. The distributed capacitance up to C.B between phase and neutral is 0.01μF, determine: 1-the recovery voltage across the contacts of the breaker, 2-the frequency of oscillation, 3- The restriking voltage across the contacts of the breaker, 4-the average rate of rise of restriking voltage up to the first peak, 5- the time to reach the peak restriking voltage, 6- the value of resistance to be used across the contacts of C.B. to eliminate the restriking voltage, and 7- the value of inductance and capacitance of this system

A 50 Hz, 11KV, 3-ph, alternator with earthed neutral has a reactance of 5 Ω\ ph and is connected to bus bar through a C.B. The distributed capacitance up to C.B between phase and neutral is 0.01μF, determine: 1-the recovery voltage across the contacts of the breaker, 2-the frequency of oscillation, 3- The restriking voltage across the contacts of the breaker, 4-the average rate of rise of restriking voltage up to the first peak, 5- the time to reach the peak restriking voltage, 6- the value of resistance to be used across the contacts of C.B. to eliminate the restriking voltage, and 7- the value of inductance and capacitance of this system

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

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

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