Question

A symmetrical 3-phase short-circuit-occurs on the 22 kV bus bars of the circuit shown as a one-line diagram in the above figure. Calculate the fault current and the fault apparent power. G 25 MVA x' = 0.15 p.u. 11 kV/132 kV 30 MVA x = 0.09 p.u. 100 MVA x = 0.092 p.u. 132 kV/22 kV 5 MVA x = 0.02 p.u. Loads F

          A symmetrical 3-phase short-circuit-occurs on the 22 kV bus bars of the circuit shown as a one-line diagram in the above figure. Calculate the fault current and the fault apparent power.

G
25 MVA x' = 0.15 p.u.

11 kV/132 kV
30 MVA x = 0.09 p.u.

100 MVA x = 0.092 p.u.

132 kV/22 kV
5 MVA x = 0.02 p.u.

Loads
F

A symmetrical 3-phase short-circuit-occurs on the 22 kV bus bars of the circuit shown as a one-line diagram in the above figure. Calculate the fault current and the fault apparent power.

G
25 MVA x' = 0.15 p.u.

11 kV/132 kV
30 MVA x = 0.09 p.u.

100 MVA x = 0.092 p.u.

132 kV/22 kV
5 MVA x = 0.02 p.u.

Loads
F

Added by Andrew K.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Madhur L

05/25/2023

Step 1

The system includes transformers and loads with given power ratings and reactances. The transformers are 11 kV/132 kV and 132 kV/22 kV. The loads are 25 MVA, 100 MVA, 30 MVA, and 5 MVA with respective reactances (x) of 0.15 p.u., 0.092 p.u., and 0.09 p.u., and Show more…

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A symmetrical 3-phase short circuit occurs on the 22 kV bus bars of the circuit shown as a one-line diagram in the above figure. Calculate the fault current and the fault apparent power. 11 kV/132 kV 132 kV/22 kV Loads 25 MVA x' = 0.15 p.u. 30 MVA x = 0.09 p.u. 100 MVA x = 0.092 p.u. 5 MVA x = 0.02 p.u.