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1
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
In a 3-step distance protection, the reach of the three zones of the relay at the beginning of the first line typically extends upto
A
100% of the first line, 50% of the second line and 20% of the third line.
B
80% of the first line, 50% of the second line and 20% of the third line.
C
80% of the first line, 20% of the second line and 10% of the third line.
D
50% of first line, 50% of second line and 20% of the third line.
2
GATE EE 1997
MCQ (Single Correct Answer)
+1
-0.3
Reactance relay is normally preferred for protection against
A
Earth faults
B
Phase faults
C
Open-circuit faults
D
None of these
3
GATE EE 1996
MCQ (Single Correct Answer)
+1
-0.3
If the fault current is $$2000$$ A, the relay setting is $$50$$% and CT ratio is $$400:5,$$ the plug setting multiplier will be
A
$$25$$
B
$$15$$
C
$$50$$
D
$$10$$
4
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
A Buchholz relay is used for
A
Protection of a transformer against all internal faults
B
Protection of a transformer against external faults
C
Protection of a transformer against both internal and external faults
D
Protection of induction motors.
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GATE EE Subjects
Electric Circuits
Three Phase Circuits Transient Response Graph Theory Two Port Networks Sinusoidal Steady State Analysis Network Elements Network Theorems
Electromagnetic Fields
Time Varying Fields Electrostatics Magnetostatics
Signals and Systems
Linear Time Invariant Systems Continuous and Discrete Time Signals Continuous Time Signal Fourier Transform Continuous Time Periodic Signal Fourier Series Discrete Time Signal Z Transformation Miscellaneous Continuous Time Signal Laplace Transform Sampling Theorem
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Engineering Mathematics
Calculus Vector Calculus Linear Algebra Differential Equations Probability and Statistics Transform Theory Complex Variable Numerical Methods
General Aptitude
Verbal Ability Logical Reasoning Numerical Ability
Power System Analysis
Parameters and Performance of Transmission Lines Power Generation Cost Power System Stability Symmetrical Components and Symmetrical and Unsymmetrical Faults Circuit Breaker Switch Gear and Protection Per Unit System Load Flow Studies High Voltage Dc Transmission Generating Power Station
Electrical and Electronics Measurement
Basic of Indicating Instruments Error Analysis and Measurement Measurement of Resistance and A.C Bridges Measurement of Energy and Power Digital Voltmeters Questions Potentiometer and Instrument Transformers Cathode Ray Oscilloscope
Analog Electronics
Diode Circuits and Applications Bjt and Mosfet Biasing Small Signal Modeling Feedback Amplifiers and Oscillator Circuits Operational Amplifier Frequency Response 555 Timer
Control Systems
Time Response Analysis Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Root Locus Techniques Basics of Control System Routh Hurwitz Stability Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Single and Three Phase Rectifier Power Semiconductor Devices Ac Voltage Controllers Inverters
Digital Electronics
Sequential Circuits Microprocessor Boolean Algebra Analog to Digital and Digital to Analog Converter Combinational Circuits Minimization Logic Families and Memories Logic Gates
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