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7 of 25 questions on this paper were also asked in other years. Each is marked below with the years it appeared.See all 7 repeated 3170908 questions, most asked first
use in the protective relaying field.
Discuss the working principle of an induction disc relay. Also derive an expression for the torque produced by it.
Also asked in Summer 2026 Q1c
What do you mean by Earth Leakage Protection? Explain Earth leakage protection for single phase load.
Why are over current relays not used for primary protection of EHV lines?
Explain principle of simple Impedance relay. Also draw characteristic.
Explain the need of a three steps distance protection of a transmission line.
With schematic, explain protection from phase fault and ground fault inside the three phase induction motor.
What are incipient faults? Discuss in detail the type of protection provided in transformer to cater to such type of faults
Also asked in Summer 2026 Q2c
Explain rotor earth fault protection for the generator with a diagram.
In relation to circuit breaker arc interruption, explain the recovery rate theory and energy balance theory.
Also asked in Summer 2026 Q5c OR
Explain its behavior with reference to internal and external faults.
Explain Making capacity & Breaking Capacity of Circuit Breakers.
What is meant by loss of excitation in a generator? What protection is used against it?
Also asked in Summer 2026 Q4a
Discuss the difference between the measuring CT and protecting CT.
Also asked in Summer 2026 Q4b OR
Explain the principle of percentage biased differential protection with harmonic restraint.
Explain construction and working of Minimum Oil Circuit Breaker (MOCB).
Questions repeat across sessions. Working through two or three papers shows you which topics GTU asks most.
BE Electrical
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Official Gujarat Technological University (GTU) examination paper for Switchgear And Protection (Summer 2025, B.E. · Electrical Engineering, Sem 7). Features complete 70-mark regular & remedial examination pattern, official marking distribution across all 5 questions, and direct 1-click official PDF download.
Transcribed for student exam preparation from Gujarat Technological University official examination archives. Questions, syllabus guidelines, and curriculum marking schemes remain the intellectual property of Gujarat Technological University.
3170908 Switchgear And Protection
Official GTU PDF · Summer 2025
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