HW4_assignment

HW4_assignment - ECE 341 Homework #4 Due: May. 12. 10...

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ECE 341 Homework #4 Due: May. 12. ‘10 Problem 1: Consider a system with the one-line diagram shown in the following Figure. The three- phase transformer nameplate ratings are listed. The transformer leakage reactances are given in per unit values (0.1). The transmission line and load impedances are in actual ohms. The generator terminal voltage is 13.2 kV (line-line). Find the generator current, the transmission line current, the load voltage, and the power delivered to the load. Note : Use p.u. values for most procedures of the problem. But convert the p.u. numbers to real voltages and currents for the final answers. Wye Delta Line impedance: 10+j10 ohm Three phase wye-delta transformer Delta Wye Three phase delta-wye transformer Load 300 ohm, PF=1 Vbase3=480 V Sbase2=2000 kVA Three phase generator 10 MVA 13.2 (Delta) -132 (Wye) KV X l =0. 1 p.u. Name Plate Values: 10 MVA 138 (Wye) - 69 (Delta) KV X l =0.1 p.u. Name Plate Values:
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This note was uploaded on 02/21/2011 for the course ECE 341 taught by Professor Keyhani during the Spring '08 term at Ohio State.

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HW4_assignment - ECE 341 Homework #4 Due: May. 12. 10...

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