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  3. 1. in a certain pint in an electrical system, the

1. In a certain pint in an electrical system, the available fault current is 12 pu....

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Electrical Engineering

1. In a certain pint in an electrical system, the availablefault current is 12 pu. Determine the actual fault current using abase power of 100 MVA and a base voltage of 34.5 kV

2. The positive, negative and zero sequence reactances of a 20MVA, 13.2 kV synchronous generator are 0.3 pu, 0.2 pu and 0.1 purespectively. The generator is solidly grounded and is not loaded.A line to ground fault occurs on phase a. Neglect all resistances,determine the fault current.

3. A 15 MVA, 34.5 kV/6.24 kV transformer is connected at aninfinite bus. The percent impedance of the transformer is 2.5%.What is the current at the 34.5 kV side for a three phase short atthe 6.24 kV side?

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