1
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
Consider the model shown in figure of a transmission line with a series capacitor at its mid-point. The maximum voltage on the line is at the location GATE EE 2001 Power System Analysis - Parameters and Performance of Transmission Lines Question 51 English
A
$${P_1}$$
B
$${P_2}$$
C
$${P_3}$$
D
$${P_4}$$
2
GATE EE 2001
Subjective
+5
-0
A power system has two generators with the following cost curves
Generator $$1:$$ $${C_1}\left( {{P_{G1}}} \right) = 0.006\,P_{G1}^2 + 8{P_{G1}} + 350$$ (Thousand Rupees/Hour)
Generator $$2:$$ $${C_2}\left( {{P_{G2}}} \right) = 0.006\,P_{G2}^2 + 7{P_{G2}} + 400$$ (Thousand Rupees/Hour)
The generator limits are
$$\eqalign{ & 100\,MW \le {P_{G1}} \le 650\,MW \cr & 50\,MW \le {P_{G2}} \le 500\,MW \cr} $$

A load demand of $$600$$ $$MW$$ is supplied by the generators in an optimal manner. Neglecting losses in the transmission network, determine the optimal generation of each generator.

3
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
A $$75$$ MVA, $$10$$ kV synchronous generator has Xd $$= 0.4$$ p.u. The Xd value (in p.u.) is a base of $$100$$ MVA, $$11$$ kV is
A
$$0.578$$
B
$$0.279$$
C
$$0.412$$
D
$$0.44$$
4
GATE EE 2001
MCQ (Single Correct Answer)
+2
-0.6
A power system has two synchronous generators. The Governor-turbine characteristics corresponding to the generators are
P1 = 50(50 – f), P2 = 100 (51 – f)
Where f denotes the system frequency in Hz, and P1 and P2 are, respectively, the power outputs (in MW) of turbines 1 and 2. assuming the generators and transmission network to be lossless, the system frequency for a total load of 400 MW is
A
47.5 Hz
B
48.0 Hz
C
48.5 Hz
D
49.0 Hz