Switchgear protections Archives

21. D.C. shunt relays are made of

few turns of thin wire

few turns of thick wire

shunt relays are made of A. few turns of thin wire B. few turns of thick wire C. many turns of thin wire

Detailed SolutionD.C. shunt relays are made of

22. Ungrounded neutral transmission system is not recommended because of system

insulation being overstressed due to over voltages

insulation overstress may lead to failure and subsequent phase to phase faults

being inadequately protected against ground fault

all of the above

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of system" class="read-more button" href="https://exam.pscnotes.com/mcq/ungrounded-neutral-transmission-system-is-not-recommended-because-of-system/#more-56179">Detailed Solution

23. When a wave propagates on a transmission line, it suffers reflection several times at

tapping

load end

sending end

sending and other end E. all of the above

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propagates on a transmission line, it suffers reflection several times at" class="read-more button" href="https://exam.pscnotes.com/mcq/when-a-wave-propagates-on-a-transmission-line-it-suffers-reflection-several-times-at/#more-56164">Detailed Solution

24. Series capacitors are used to

compensate for line inductive reactance

compensate for line capacitive reactance

improve line voltage

none of the above

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