For the four bus system as shown in Fig. Determine the fault current when the fault takes place at bus no.2 with fault impedance Z, =j0.42 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume pre fault Voltage Eth= 120° p.u Generator X = j0.21p.u ; Transmission line X = j0.29p.u ; Transformer X = j0.42p.u À Y=' Y스 Zth in p.u Fault current I, in p.u Fault Current contribution by the Generator G1 (Ig1) 00000

For the four bus system as shown in Fig. Determine the fault current when the fault takes place at bus no.2 with fault impedance Z, =j0.42 p.u. The Subtransient reactance of the generators and positive sequence reactance of other elements are given. Assume pre fault Voltage Eth= 120° p.u Generator X = j0.21p.u ; Transmission line X = j0.29p.u ; Transformer X = j0.42p.u À Y=' Y스 Zth in p.u Fault current I, in p.u Fault Current contribution by the Generator G1 (Ig1) 00000

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 three-phase synchronous generator produces 10 MVA power under a rated voltage of 10 kV. Zero sequence component reactance of this generator is given as X0 = j0.1 pu, positive sequence component reactance X1 = j0.1 pu and negative sequence component reactance X2 = j0.1 pu, and the star point of this generator is given as Xn = j1 Ω grounded. a) Calculate the real value of the fault current that will occur in the three-phase short circuit fault at the output of this generator. (The actual value of the fault current will be calculated and entered AS INTENT (such as 3550. Values entered as per unit will not be accepted.) b) Calculate the real value of the fault current that will occur in the case of single phase-ground short circuit fault at the output terminal ends of this generator. (The actual value of the fault current will be calculated and INTENT (such as 3550) will be entered. Values entered as per unit will not be accepted.) c) Calculate the real value of the fault current…
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pls solve it before 10 min