Download GTU BE/B.Tech 2019 Winter 5th Sem Old 150902 Power System Analysis And Simulation Question Paper

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GUJARAT TECHNOLOGICAL UNIVERSITY

BE - SEMESTER-V (Old) EXAMINATION — WINTER 2019

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Subject Code: 150902 Date: 06/12/2019

Subject Name: Power System Analysis And Simulation

Time: 10:30 AM TO 01:00 PM Total Marks: 70

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1 (a) Derive equivalent-p circuit of a long transmission line. [07]

(b) A three phase, 60 Hz transmission line, 130 Km long delivering 270 MVA at 325 kV & a 0.8 p.f. lagging. The resistance & inductance of the lines per phase per km are 0.036 O & 0.8 mH respectively, While capacitance is 0.0112 pF / km / phase. Using Nominal-T method. Calculate: (1) Sending end Voltage (2) Sending end Current (3) Voltage regulation and (4) Line efficiency. [07]

Q.2 (a) Write a brief note on selection of circuit breakers. [07]

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(b) Explain in brief transients in RL series circuits [07]

OR

Q.2 (a) Draw the reactance diagram & mark all reactance in per unit. Choose 12.2kV as a base for generator & 50 MVA. [07]

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