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Quiz_2

# Quiz_2 - Problem 1(10 points 1 Three identical single-phase...

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The Ohio State University Department of Electrical and Computer Engineering ECE 740  Autumn 2007 Quiz # 2 October 11, 2007 Name (print) ____________________________________________                                          Notice:  There is one problem on the following pages.   Please read the problem carefully. Draw diagrams wherever necessary and show all the steps.  “No aid is given, received or observed”            Signature_____________  Grade_____________

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Unformatted text preview: Problem # 1: (10 points) 1 Three identical single-phase transformers, each rated 13.2 kV/240 V, 1 MVA and having a short circuit reactance of 10% , are connected together to form a three-phase bank. A balanced Y-connected load with per phase resistance is connected across the secondary of the transformer bank. Determine the Y-equivalent per-phase impedance (in and in per-unit) seen from the primary side when the transformer is connected - i) ii) 2...
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• Fall '07
• Keyhani
• Ohio State University, Ohio State University Department of Electrical and Computer Engineering, transformer bank.  Determine, short  circuit reactance, identical single­phase transformers, Y­equivalent per­phase impedance

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Quiz_2 - Problem 1(10 points 1 Three identical single-phase...

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