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Diesel Generator A I MVA diesel three-phase generator is rated at 4.16 kV, 60 Hz, and...

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Electrical Engineering


Diesel Generator A I MVA diesel three-phase generator is rated at4.16 kV, 60 Hz, and connected as Y its neutral is kept floating. Itis directly tied to three loads, one consuming 50% of its capacity,and each of the other two consuming 25% of its capacity. Athree-phase to ground fault could occur at any of the loads. Draw aone-line diagram of this system, then describe what type of faultscould occur in the generator and diesel engine. Explain at leastthree types of protection strategies that have to be implemented insuch a system, and show necessary fault current calculations.Assume that any fault impedance you may need is 9.02 pu, and anycomponent impedance is 0.4 pu.

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