1
GATE EE 2003
MCQ (Single Correct Answer)
+1
-0.3
A round rotor generator with internal voltage $${E_1} = 2.0\,\,$$ p.u.and $$\,X = 1.1\,\,$$ p.u. is connected to a round rotor synchronous motor with internal voltage $$\,\,{E_2} = 1.3\,\,$$ p.u. and $$\,X = 1.2\,\,$$ p.u. The reactance of the line connecting the generator to the motor is $$0.5$$ p.u. when the generator supplies $$0.5$$ p.u. power, the rotor angle difference between the machines will be
A
$${57.42^ \circ }$$
B
$${1^ \circ }$$
C
$${32.58^ \circ }$$
D
$${122.58^ \circ }$$
2
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
Steady state stability of a power system is the ability of the power system to
A
Maintain voltage at the rated voltage level.
B
Maintain frequency exactly at 50 Hz.
C
Maintain a spinning reserve margin at all times.
D
Maintain synchronism between machines and on external tie lines.
3
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
A $$100$$ $$MVA$$, $$11$$ $$kV$$, $$3$$-phase, $$50$$ $$Hz$$, $$8$$-pole synchronous generator has an inertia constant H equal to $$4$$ $$MJ/MVA.$$ The stored energy in the rotor of the generator at synchronous speed will be $$H = {E \over G}$$
A
$$100$$ MJ
B
$$400$$ MJ
C
$$800$$ MJ
D
$$12.5$$ MJ
4
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
During a disturbance on synchronous machine, the rotor swings from A to B before finally settling down to a steady state at a point C on the power angle curve. The speed of the machine during oscillation is synchronous at point(s)
A
A and B
B
A and C
C
B and C
D
Only at C
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