BPUT previous year question papers Of POWER SYSTEM OPERATION AND CONTROL, 7th Semester 2011

BPUT previous year question paper
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BPUT previous year question papers Of POWER SYSTEM OPERATION AND CONTROL, 7th Semester 2011

Registration No.:

Total number of printed pages—3 B. Tech.

PCEL44O1B.

Seventh Semester Examination — 2011.

POWER SYSTEM OPERATION AND CONTROL.

Full Marks—70.

Time: 3 Hours.

Answer Question No. 1 which is compulsory and any five from the rest.

The figures in the right-hand margin indicate marks.

1. Answer the following questions: 2x10

(a) A single phase ac voltage of 230V is supplied to a series circuit whose

Impedance is 2 +j2.5. Find real power, reactive power and the power factor of the circuit.

(b) Why the nodal admittance matrix of a typical power system is sparse?

(c) Define the slack or swing generator of a power system.

(d) What are the typical conditions needed to be taken care of while distributing loads within the units of a plant and the same among plants?

(e) Define classical power flow equations.

(f) Draw the dynamic response characteristics of the primary ALFC loop.

(g) How the power is being transmitted among the areas in multi- control- area systems?

(h) Define transient stability of a power system.

(I) what are the factors affecting stability of a power network?

(j) What are the necessary steps those can be taken for stabilizing voltage of a bus n a power system?

2. (a) A single phase inductive load draws 8.2 MW at 0.75 power factor lagging.Draw the power triangle and determine the reactive power of a capacitor to be connected ¡n parallel with the load to raise the power factor to 0.85.

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Power System Operation & Contol
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