1
GATE EE 2010
+1
-0.3
Consider two buses connected by an impedance of $$\left( {0 + j5} \right)\Omega .$$ The bus $$1$$ voltage is $$100$$$$\angle {30^ \circ }\,\,\,V,$$ and bus $$2$$ voltage is $$100\angle {0^ \circ }\,\,\,V,$$ The real and reactive power supplied by bus $$1,$$ respectively, are
A
$$1000$$ $$W,$$ $$268$$ VAR
B
$$-1000$$ $$W,$$ $$-134$$ VAR
C
$$276.9$$ $$W,$$ $$-56.7$$ VAR
D
$$-276.9$$ $$W,$$ $$56.7$$ VAR
2
GATE EE 2010
+1
-0.3
Consider a step voltage wave of magnitude $$1$$ pu travelling along a loss less transmission line that terminates in a reactor. The voltage magnitude across the reactor at the instant the travelling wave reaches the reactor is
A
$$-1$$ pu
B
$$1$$ pu
C
$$2$$ pu
D
$$3$$ pu
3
GATE EE 2010
+2
-0.6
Consider a three-core, three phase, $$50$$ $$Hz$$, $$11$$ $$kV$$ cable whose conductors are denoted as $$R, Y$$ and $$B$$ in the figure. The inter-phase capacitance $$\left( {{C_1}} \right)$$ between each pair of conductors is $$0.2$$ $$\mu F$$ and the capacitance between each line conductor and the sheath is $$0.4$$ $$\mu F$$ . The per-phase charging current is
A
$$2.0$$ $$A$$
B
$$2.4$$ $$A$$
C
$$2.7$$ $$A$$
D
$$3.5$$ $$A$$
4
GATE EE 2010
+2
-0.6
A $$50$$ $$Hz$$ synchronous generator is initially connected to a long lossless transmission line which is open circuited at the receiving end. With the field voltage held constant, the generator is disconnected from the transmission line. Which of the following may be said about the steady state terminal voltage and field current of the generator?
A
The magnitude of terminal voltage decreases, and the field current does not change.
B
The magnitude of terminal voltage increases, and the field current does not change.
C
The magnitude of terminal voltage increases, and the field current increases.
D
The magnitude of terminal voltage does not change, and the field current decreases.
GATE EE Papers
2023
2022
2021
2020
2019
2018
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
1996
1995
1994
1993
1992
1991
EXAM MAP
Medical
NEET