Time Left - 10:00 mins

BARC-2018 EE: Power System Quiz 1

Attempt now to get your rank among 887 students!

Question 1

A power system network having 200 buses out of which there are 15 fixed shunt capacitor buses and 30 generator buses then the size of the Jacobian matrix is –

Question 2

Find the internal inductance of an ACSR conductor if it has a diameter of 4 cm and has an internal inductance of 1.25 mH/KM. If this conductor is replaced with another having a diameter of 8cm.

Question 3

A 3-phase overhead long transmission line has three conductors placed horizontally having distance ‘d’ between two adjacent conductors. What will happen to the capacitance and inductance, if now the conductors of the line are rearranged to form an equilateral triangle of sides equal to ‘d’?

Question 4

A generator operating at 50 Hz delivers 1 pu power to an infinite bus through a transmission circuit in which resistance is ignored. A fault takes place reducing the maximum power transferable to 0.5 pu. Where as before the fault, this power was 2.0 pu and after the clearance of the fault, it is 1.5 pu. The critical clearing angle is ____________.

Question 5

In a nominal T – Model of transmission line Z = 150 Ω and Y = 5× 10^-3 Ω ( Resistance of the line is negligible). Characteristic impedance will be–

887 attempts
5 upvotes
11 comments

Tags :

ESE & GATE EE Power Systems

Jan 8ESE & GATE EE