Due to the fault at bus number -4 the Circuit breaker connected to the phase "B" startsfunctioning and it is found that fault current flows to the ground through a fault impedance ofj0.02. [Take pre-fault current as 1.04 p.u.](a) Name the Type of fault(b)Find all the maximum sequence currents that flows through the circuit BreakerThe Z bus as shown below.[j0.11j0.12j0.13j0.14j0.15j0.16 j0.32j0.12 j0.13 j0.14j0.26 j0.28j0.33 j0.45j0.45 j0.55j0.30 j0.35 j0.54j0.53 j0.56j0.15j0.30j0.35j0.54j0.66j0.67j0.16-j0.32j0.53j0.56j0.67j0.77j0.22j0.26j0.28[j0.21j0.22j0.23j0.24j0.25j0.26 j0.42j0.22j0.33j0.36j0.38j0.23 j0.24j0.36 j0.38j0.43 j0.45j0.45 j0.54j0.40 j0.46 j0.56j0.47 j0.57j0.26j0.42j0.25j0.40j0.46 j0.47j0.56j0.77j0.76j0.57j0.76j 0.87[J0.31j0.32j0.33j0.34j0.35j0.36 j0.32j0.32 j0.33 j0.34j0.26 j0.28j0.43 j0.45j0.45 j0.65j0.30 j0.35 j0.54 j0.76j0.53 j0.56j0.35j0.30j0.35j0.54j0.36j0.32j0.53j0.56j0.67j0.32j0.26j0.28j0.670.87

In this question we need to find a type of fault and fault current through circuit breaker.

Due to the fault at bus number -4 the Circuit breaker connected to the phase "B" starts functioning and it is found that fault current flows to the ground through a fault impedance of jo.02. [Take pre-fault current as 1.04 p.u.] (a) Name the Type of fault (b)Find all the maximum sequence currents that flows through the circuit Breaker The Z bus as shown below. j0.15 [j0.11 j0.12 j0.22 j0.26 j0.28 j0.30 j0.13 j0.26 j0.14 j0.15 j0.16 j0.32 j0.12 j0.13 j0.14 j0.161 j0.32 j0.33 j0.45 jo.35 j0.53 j0.28 j0.45 j0.55 j0.30 j0.35 j0.54 j0.66 j0.53 j0.56 j0.56 j0.67 j0.67 j0.77 j0.54 [j0.21 j0.22 j0.33 j0.36 j0.38 j0.23 j0.36 j0.24 j0.25 j0.26 j0.42 j0.25 j0.40 j0.26 j0.42 j0.46 j0.47 j0.57 j0.76 j 0.87 j0.22 j0.23 j0.24 j0.43 j0.45 j0.38 j0.45 j0.54 Z? j0.56 j0.40 j0.46 j0.56 j0.77 j0.47 j0.57 jo.76 j0.36 j0.32 j0.53 j0.54 j0.56 j0.67 0.87 [j0.31 j0.32 j0.33 j0.34 j0.32 j0.32 j0.26 j0.28 j0.30 j0.43 j0.45 j0.45 j0.65 j0.30 j0.35 j0.54 j0.76 j0.53 j0.56 j0.35 j0.33 j0.34 j0.35 j0.36 j0.32 j0.35 j0.26 j0.28 j0.67

Due to the fault at bus number -4 the Circuit breaker connected to the phase "B" starts functioning and it is found that fault current flows to the ground through a fault impedance of jo.02. [Take pre-fault current as 1.04 p.u.] (a) Name the Type of fault (b)Find all the maximum sequence currents that flows through the circuit Breaker The Z bus as shown below. j0.15 [j0.11 j0.12 j0.22 j0.26 j0.28 j0.30 j0.13 j0.26 j0.14 j0.15 j0.16 j0.32 j0.12 j0.13 j0.14 j0.161 j0.32 j0.33 j0.45 jo.35 j0.53 j0.28 j0.45 j0.55 j0.30 j0.35 j0.54 j0.66 j0.53 j0.56 j0.56 j0.67 j0.67 j0.77 j0.54 [j0.21 j0.22 j0.33 j0.36 j0.38 j0.23 j0.36 j0.24 j0.25 j0.26 j0.42 j0.25 j0.40 j0.26 j0.42 j0.46 j0.47 j0.57 j0.76 j 0.87 j0.22 j0.23 j0.24 j0.43 j0.45 j0.38 j0.45 j0.54 Z? j0.56 j0.40 j0.46 j0.56 j0.77 j0.47 j0.57 jo.76 j0.36 j0.32 j0.53 j0.54 j0.56 j0.67 0.87 [j0.31 j0.32 j0.33 j0.34 j0.32 j0.32 j0.26 j0.28 j0.30 j0.43 j0.45 j0.45 j0.65 j0.30 j0.35 j0.54 j0.76 j0.53 j0.56 j0.35 j0.33 j0.34 j0.35 j0.36 j0.32 j0.35 j0.26 j0.28 j0.67

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

Chapter10: System Protection

Section: Chapter Questions

Problem 10.25P

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Similar questions

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