HW 07 - ELEN3441FundamentalsofPowerEngineering Spring2011...

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ELEN 3441 – Fundamentals of Power Engineering Spring 2011 Page | 1 Homework 7 – Solutions 7.1. (20 pt.) a) The resistance per meter of aluminum conductor is given by the Equation b) The resistance per meter of hard-drawn copper conductor is given by the Equation 7.2. (30 pt.) a) The series inductance per meter of this transmission line is given by the Equation b) The shunt capacitance per meter of this transmission line is given by the Equation
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ELEN 3441 – Fundamentals of Power Engineering Spring 2011 Page | 2 c) At 50 km length, we can treat this transmission line as a “short” line and ignore the effects of the shunt admittance. The corresponding equivalent circuit is shown in Figure 7-1 below. Figure 7-1 The transmission line is supplying a voltage of 8 kV at the load, so the magnitude of the current flowing to the load is Assuming that the voltage at the load is arbitrarily assigned to be at 0° phase, and the power factor of the load is 0.9 lagging, the phasor current flowing to the load is I = 100 25.8° A. The voltage at the sending end of the transmission line is then d) The complex output power from the transmission line is
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This note was uploaded on 09/21/2011 for the course EE ee taught by Professor Ee during the Spring '10 term at Istanbul Technical University.

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HW 07 - ELEN3441FundamentalsofPowerEngineering Spring2011...

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