The equivalent thevenin's impedance is 0.2 pu at 100MVA base. A 115kV/34.5kV, 10 MVA transformer of...

• •  

  • 
    

 

Transcribed Image Text:

The equivalent thevenin's impedance is 0.2 pu at 100MVA base. A 115kV/34.5kV, 10 MVA transformer of 5% impedance is tapped at this point. If a three-phase fault should occur at the secondary of the transformer, what is the fault current? The equivalent thevenin's impedance is 0.2 pu at 100MVA base. A 115kV/34.5kV, 10 MVA transformer of 5% impedance is tapped at this point. If a three-phase fault should occur at the secondary of the transformer, what is the fault current?

Answer rating: 100% (QA)

To calculate the fault current we need to consider the equivalent Thevenin impedance and the transfo... View the full answer