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1
GATE EE 2002
MCQ (Single Correct Answer)
+1
-0.3
Consider the problem of relay co-ordination for the distance relays $$R1$$ and $$R2$$ on adjacent lines of a transmission system figure. The Zone $$1$$ GATE EE 2002 Power System Analysis - Switch Gear and Protection Question 19 English
and Zone $$2$$ settings for both the relays are indicated on the diagram. Which of the following indicates the correct time setting for the Zone $$2$$ of relays $$R1$$ and $$R2.$$
A
$$TZ{2_{R1}} = 0.6s,\,\,TZ{2_{R2}} = 0.3s$$
B
$$TZ{2_{R1}} = 0.3s,\,\,TZ{2_{R2}} = 0.6s$$
C
$$TZ{2_{R1}} = 0.3s,\,\,TZ{2_{R2}} = 0.3s$$
D
$$TZ{2_{R1}} = 0.1s,\,\,TZ{2_{R2}} = 0.3s$$
2
GATE EE 2000
MCQ (Single Correct Answer)
+1
-0.3
In an inverse definite minimum time, electromagnetic type over-current relay, the minimum time feature is achieved because of
A
Saturation of the magnetic circuit
B
Proper mechanical design
C
Appropriate time delay element.
D
Electromagnetic damping.
3
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.
4
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
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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
Continuous and Discrete Time Signals Linear Time Invariant Systems Continuous Time Signal Fourier Transform Discrete Time Signal Z Transformation Continuous Time Signal Laplace Transform Sampling Theorem Continuous Time Periodic Signal Fourier Series Miscellaneous
Electrical Machines
Induction Machines D.C Machines Synchronous Machines Transformers
Engineering Mathematics
Linear Algebra Differential Equations Calculus Probability and Statistics Numerical Methods Vector Calculus Transform Theory Complex Variable
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
Block Diagram and Signal Flow Graph Polar Nyquist and Bode Plot State Variable Analysis Basics of Control System Routh Hurwitz Stability Time Response Analysis Root Locus Techniques Controller and Compensator
Power Electronics
Choppers and Commutation Techniques Ac Voltage Controllers Single and Three Phase Rectifier Power Semiconductor Devices Inverters
Digital Electronics
Boolean Algebra Logic Gates Combinational Circuits Minimization Logic Families and Memories Sequential Circuits Analog to Digital and Digital to Analog Converter Microprocessor
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