midsol - remain unchanged at 230 V. Question 2 [10 marks] A...

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Question 1 [10 marks] A single-phase 50 Hz source supplies power to a motor load through a distribution line with an impedance of 0.185 + j0.321 . The terminal voltage of the motor is 230 V. The power drawn by the motor is 5 kW at a power factor of 0.7 lagging. Calculate the following. (a)The magnitude of source voltage. (b)The power lost in the distribution line. (c)The capacitance that should be connected in parallel to the motor to improve the power factor at motor terminals to unity. Assume the motor terminal voltage to
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Unformatted text preview: remain unchanged at 230 V. Question 2 [10 marks] A 3-phase, Y-connected source with a phase voltage of 120V feeds power to a 3-phase, ∆-connected load through distribution lines having the impedance of 0.5 + j1.4 Ω /phase. The load impedance is 118.5 + j85.8 Ω /phase. Determine the following. (a) The magnitude of distribution line current. (b) The magnitude of phase current of the load. (c) The magnitude of line voltage at the terminals of the load. (d) The total average power delivered to the load....
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This note was uploaded on 04/16/2008 for the course ELEC PLANT 101 taught by Professor Albert during the Spring '07 term at Curtis.

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midsol - remain unchanged at 230 V. Question 2 [10 marks] A...

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