GATE EE

Power System Stability

Power System Analysis

(Past Years Questions)

Marks 1

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Consider a lossy transmission line with V1 and V2 as the sending and receiving end voltages, respectively. Z and X are t...
GATE EE 2018
Shunt reactors are sometimes used in high voltage transmission systems to
GATE EE 2014 Set 2
The angle $$\delta $$ in the swing equation of a synchronous generator is the
GATE EE 2013
A round rotor generator with internal voltage $${E_1} = 2.0\,\,$$ p.u.and $$\,X = 1.1\,\,$$ p.u. is connected to a roun...
GATE EE 2003
Steady state stability of a power system is the ability of the power system to
GATE EE 1999
A $$100$$ $$MVA$$, $$11$$ $$kV$$, $$3$$-phase, $$50$$ $$Hz$$, $$8$$-pole synchronous generator has an inertia constant ...
GATE EE 1997
During a disturbance on synchronous machine, the rotor swings from A to B before finally settling down to a steady stat...
GATE EE 1996
The transient stability of the power system can be effectively improved by
GATE EE 1993

Marks 2

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A 3-phase, 2-pole, 50 Hz, synchronous generator has a rating of 250 MVA, 0.8 pf lagging. The kinetic energy of the machi...
GATE EE 2017 Set 2
The figure shows the single line diagram of a power system with a double circuit transmission line. The expression for e...
GATE EE 2017 Set 1
The synchronous generator shown in the figure is supplying active power to an infinite bus via two short, lossless trans...
GATE EE 2015 Set 2
A 50 Hz generating unit has H-constant of 2 MJ/MVA. The machine is initially operating in steady state at synchronous sp...
GATE EE 2015 Set 1
The figure shows the single line diagram of a single machine infinite bus system. The inertia constant of the synchron...
GATE EE 2014 Set 3
A cylindrical rotor generator delivers $$0.5$$ pu power in the steady-state to an infinite bus through a transmission li...
GATE EE 2012
A $$500$$ $$MW,$$ $$21$$ $$kV,$$ $$50$$ $$Hz,$$ $$3$$-phase, $$2$$-pole synchronous generator having a rated $$p.f.=$$$$...
GATE EE 2009
A lossless single machine infinite bus power system is shown below: The synchronous generator transfers $$1.0$$ per un...
GATE EE 2008
Consider a synchronous generator connected to an infinite bus by two identical parallel transmission lines. The transi...
GATE EE 2007
A generator feeds power to an infinite bus through a double circuit transmission line. A 3 phase fault occurs at the mi...
GATE EE 2006
A generator feeds power to an infinite bus through a double circuit transmission line. A $$3$$ phase fault occurs at th...
GATE EE 2006
A generator with constant 1.0 p.u. terminal voltage supplies power through a step-up transformer of 0.12 p.u. reactance ...
GATE EE 2005
A 50 Hz, 4-pole, 500 MVA, 22 kV turbo-generator is delivering rated megavolt-amperes at 0.8 power factor. Suddenly a fau...
GATE EE 2004
A generator delivers power of 1.0 p.u. to an infinite bus through a purely reactive network. The maximum power that coul...
GATE EE 2003
A transmission line has a total series reactance of 0.2 pu. Reactive power compensation is applied at the midpoint of th...
GATE EE 2002
A power station consists of two synchronous generators A and B of ratings 250 MVA and 500 MVA with inertia constant 1.6 ...
GATE EE 1998

Marks 5

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A synchronous generator is to be connected to an infinite bus through a transmission line of reactance X = 0.2 pu, as sh...
GATE EE 2002
A synchronous generator is connected to an infinite bus through a lossless double circuit transmission line. The generat...
GATE EE 2001
A synchronous generator, having a reactance of 0.15 p.u., is connected to an infinite bus through two identical parallel...
GATE EE 2000
An alternator is connected to an infinite bus as shown in figure. It delivers 1.0 p.u. current at 0.8 p.f lagging at V =...
GATE EE 1998
A synchronous motor is receiving 50% of the power it is cable to receiving from an infinite bus. If the load on the moto...
GATE EE 1997
In a system, there are two generators operating in parallel. One generator, of rating 250 MVA, has an inertia-constant o...
GATE EE 1994

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