Question

System Data: 161 kV and 100 MVA ZL1 = 1.87 + j4.89 ?p ZL0 = 4.61 + j16.87 ?p A B VS VR F1 F2 F3 Source VS ZS1 = 1.90 + j12.23 ?p ZS0 = 9.52 + j17.14 ?p Source VR ZR1 = 1.90 + j15.23 ?p ZR0 = 3.81 + j9.52 ?p F1 = A-G fault on bus A. F2 = 3PH fault 30% from bus A. F3 = B-C fault 90% from A to B. Compute the following quantities (magnitude & phase) for each of the above faults. Fault V1 (at bus B) V2 (at bus B) V0 (at bus B) I1 at B* I2 at B* I0 at B* F1 F2 F3 Fault VA (at bus B) VB (at bus B) VC (at bus B) IA at B* IB at B* IC at B* F1 F2 F3 * from bus B into the line

          System Data: 161 kV and 100 MVA

ZL1 = 1.87 + j4.89 ?p
ZL0 = 4.61 + j16.87 ?p

A B
VS VR
F1 F2 F3

Source VS
ZS1 = 1.90 + j12.23 ?p
ZS0 = 9.52 + j17.14 ?p

Source VR
ZR1 = 1.90 + j15.23 ?p
ZR0 = 3.81 + j9.52 ?p

F1 = A-G fault on bus A.
F2 = 3PH fault 30% from bus A.
F3 = B-C fault 90% from A to B.

Compute the following quantities (magnitude & phase) for each of the above faults.

Fault V1 (at bus B) V2 (at bus B) V0 (at bus B) I1 at B* I2 at B* I0 at B*
F1
F2
F3

Fault VA (at bus B) VB (at bus B) VC (at bus B) IA at B* IB at B* IC at B*
F1
F2
F3

* from bus B into the line

System Data: 161 kV and 100 MVA

ZL1 = 1.87 + j4.89 ?p
ZL0 = 4.61 + j16.87 ?p

A B
VS VR
F1 F2 F3

Source VS
ZS1 = 1.90 + j12.23 ?p
ZS0 = 9.52 + j17.14 ?p

Source VR
ZR1 = 1.90 + j15.23 ?p
ZR0 = 3.81 + j9.52 ?p

F1 = A-G fault on bus A.
F2 = 3PH fault 30% from bus A.
F3 = B-C fault 90% from A to B.

Compute the following quantities (magnitude phase) for each of the above faults.

Fault V1 (at bus B) V2 (at bus B) V0 (at bus B) I1 at B* I2 at B* I0 at B*
F1
F2
F3

Fault VA (at bus B) VB (at bus B) VC (at bus B) IA at B* IB at B* IC at B*
F1
F2
F3

* from bus B into the line

Added by Melissa L.

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