Quiz_6

# Quiz_6 - Problem 1(10 points Consider the power system...

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The Ohio State University Department of Electrical and Computer Engineering ECE 740  Autumn 2007 Quiz # 6 November 15, 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____________ _ 1

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Unformatted text preview: Problem # 1: (10 points) Consider the power system given below: Given: Z g(+) =Z g(-) =j0.18 p.u. , Z g(0) =j0.12 p.u. Z AB(+) =Z AB(-) =j0.5 p.u. , Z AB(0) =j0.8 p.u. Z BC(+) =Z BC(-) =j0.9 p.u. , Z BC(0) =j0.8 p.u. Z T(+) =Z T(-) =Z T(0) =j0.15 p.u. V L = 1/_-25 p.u., S L =j0.825 p.u. Assuming that the given system is balanced, draw the sequence networks for zero, positive and negative sequences with all parameters (impedances and voltage sources) labeled. 2 3...
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