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0vd9l7-HW2

# 0vd9l7-HW2 - power system with two loads The-connected...

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EEL 3216 Introduction to Power Systems Homework # 2 CHAPTER 1.8 and 2 1. A three phase wye-connected un balanced load is supplied by a balanced three-phase delta connected source. The three source voltages and two of the line currents are: V ab = 13.2 kV 90° I a = 19.42 A -33.1° V bc = 13.2 kV 210° I b = 16.34 A 189.3° V ca = 13.2 kV 330° a) Find the neutral current I n and the phase-c line current I c b) Find the impedances Z an , Z bn , and Z cn c) Calculate the active, reactive, and apparent power delivered by the source d) Draw the phasor diagram of all voltages and currents 2. (Problem 2-2, p 79 in Textbook) The circuit below (Figure 2) shows a three-phase

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Unformatted text preview: power system with two loads. The '-connected generator is producing a line voltage of 480 V, and the line impedance is 0.09 + j 0.16 ȍ . Load 1 is Y-connected, with a phase impedance of 2.5 ± 36.87° ȍ and load 2 is '-connected, with a phase impedance of 5 ±-20° ȍ . a) What is the line voltage of the two loads? b) What is the voltage drop on the transmission lines? c) Find the real and reactive powers supplied to each load. d) Find the real and reactive power losses in the transmission line. e ) Find the real power, reactive power, and power factor supplied by the generator...
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