bosspuppy1606 bosspuppy1606

07-02-2024
Physics

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A 3-phase, 400kVA, 11/0.4kV transformer is connected as delta/star. The protective transformer on the 0.4kV Side have ratio of 600/5. What will be the CT ratios on the high voltage side? Also obtain the circulating currents when the fault of 850A of the following types occurs on the low voltage side in a well labelled circuit
diagrams;
(a)Earth fault within the protective zone, and

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