1
GATE EE 2005
MCQ (Single Correct Answer)
+1
-0.3
The insulation strength of an EHV transmission line is mainly governed by
A
Load power factor
B
Switching over-voltages
C
Harmonics
D
Corona
2
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
At an industrial sub-station with a $$4$$ $$MW$$ load, a capacitor of $$2$$ MVAR is installed to maintain the load power factor at $$0.97$$ lagging. If the capacitor goes out of service, the load power factor becomes
A
$$0.85$$ lag
B
$$1.00$$ lag
C
$$0.80$$ lag
D
$$0.90$$ lag
3
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
A load centre is at an equidistant from the two thermal generating stations $${G_1}$$ and $${G_2}$$ as shown in figure. The fuel cost characteristics of the generating stations are given by
$${F_1} = a + b{P_1} + cP_1^2\,Rs/hour$$
$${F_2} = a + b{P_2} + 2cP_2^2\,Rs/hour$$ GATE EE 2005 Power System Analysis - Power Generation Cost Question 11 English

Where $${P_1}$$ and $${P_2}$$ are the generations in $$MW$$ of $${G_1}$$and $${G_2}$$, respectively. For most economic generation to meet $$300MW$$ of load $${P_1}$$ and $${P_2},$$ respectively, are

A
$$150, 150$$
B
$$100, 200$$
C
$$200, 100$$
D
$$175, 125$$
4
GATE EE 2005
MCQ (Single Correct Answer)
+2
-0.6
A generator with constant 1.0 p.u. terminal voltage supplies power through a step-up transformer of 0.12 p.u. reactance and a double-circuit line to an infinite bus bar as shown in the figure. The infinite bus voltage is maintained at 1.0 p.u. Neglecting the resistances and susceptances of the system, the steady state stability power limit of the system is 6.25 p.u. If one of the double-circuit is tripped, the resulting steady state stability power limit in p.u. will be GATE EE 2005 Power System Analysis - Power System Stability Question 21 English
A
12.5
B
3.125
C
10.0
D
5.0
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