MidTerm_s - The Ohio State University Department of...

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The Ohio State University Department of Electrical and Computer Engineering ECE 740  Autumn 2007 Mid Term - I: Solution Name (print) ____________________________________________                                          Notice:  There are 3 problems on the following pages.   Please read the problems carefully. Draw diagrams wherever necessary and show all the steps.  “No aid is given, received or observed”            Signature_____________  Grade____________ _ 1
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Problem # 1: (30 points) Three single-phase transformers, each rated 220/22 kV, 150 MVA with a leakage  reactance of 20%, are connected as a three-phase Wye-Wye connected bank. Draw three-phase equivalent circuit, single-phase equivalent circuit with values specified  in ohms on the HV side and per-unit equivalent circuit on the transformer rated values.  Solution: 2
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This note was uploaded on 07/17/2008 for the course ECE 740 taught by Professor Keyhani during the Fall '07 term at Ohio State.

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MidTerm_s - The Ohio State University Department of...

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