Syllabus
for (SGP-7th sem) MCQ Test-4, (Test Date: 08/09/2020)
SUBJECT NAME: SWITCH GEAR AND
PROTECTION (2170908)
B.E. 7 th SEMESTER
Note: All questions are
compulsory. Each question carry one mark.
|
Ch-4 |
Transformer
Protection: Types of Faults, Over Current Protection, Percentage Differential
Protection, Inrush Phenomenon, High Resistance Ground Faults in Transformers,
Inter-turn Faults, Incipient Faults, Over-fluxing Phenomenon[1] |
|
Ch-5 |
Distance
Protection of Transmission line: Drawbacks of O.C. Protection, Introduction to
Distance Protection, Types of Distance Relay, Impedance, Reactance, MHO
Relay, Performance of Distance Relay During Normal Load and Power Swing,
Effect of Arc Resistance on Reach of Distance Relays, Comparison of Distance
Relays, Distance Protection of Transmission line, Reasons for Inaccuracy of
Distance Relay Reach, Three Step Protection, Trip contact configuration,
3-step protection of double and fed lines. [1] |
|
Ch-12 |
Theory &
Practice of Conventional Circuit Breaker and modern circuit breakers: Automatic switch, Air-break circuit breakers, Oil circuit breakers, Single
and multi-break Construction, Air-blast circuit breaker, Performance of
circuit breakers and system requirements, Modification of circuit breaker
duty by shunt resistors, Power factor correction by series resistance,
Comparative merits of different types of conventional circuit breakers,
Modern trends, Vacuum circuit breakers, Sulphur hexafluoride (SF6) circuit breakers
D.C. circuit breaker, auto-reclosing - definitions & features, 3-Phase
versus 1-Phase auto-reclosing [4] |
Reference
Books:
1.
Fundamentals of Power System Protection – Y. G. Parithankar & S. R. Bhide,
2ndedition, PHI
2.
Power system protection and switchgear by Oza, Nair, Mehta, Makwana
3.
Switchgear And Protection – S. S. Rao, Khanna publication
4.
Power System Protection And Switchgear – B. Ravindranath and M. Chander
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