The positive, negative, and zero sequence reactances of a 20-MVA, 13.2-kV syn- chronous generator are 0.3...

  

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The positive, negative, and zero sequence reactances of a 20-MVA, 13.2-kV syn- chronous generator are 0.3 pu, 0.2 pu, and 0.1 pu, respectively. The generator is solidly grounded and is not loaded. 1. A line-to-ground fault occurs on phase a. Neglecting all the resistances, determine the fault current. 2. A line-to-line fault occurs at the terminals of the unloaded generator. Calculate the fault current. The positive, negative, and zero sequence reactances of a 20-MVA, 13.2-kV syn- chronous generator are 0.3 pu, 0.2 pu, and 0.1 pu, respectively. The generator is solidly grounded and is not loaded. 1. A line-to-ground fault occurs on phase a. Neglecting all the resistances, determine the fault current. 2. A line-to-line fault occurs at the terminals of the unloaded generator. Calculate the fault current.

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