Switchgear protections Archives - Page 10 of 10 - MCQ and Quiz for Exams

91. The reflection co-efficient at the open circuited end of a transmission line.

zero

infinity

unity

none of the above

Detailed SolutionThe reflection

co-efficient at the open circuited end of a transmission line.

92. To limit short-circuit current in a power system are used

earth wires

isolators

H.R. fuses

reactors

Join Our Telegram Channel

Subscribe on YouTube

button" href="https://exam.pscnotes.com/mcq/to-limit-short-circuit-current-in-a-power-system-are-used/#more-43549">Detailed Solution

93. For which of the following protection from negative sequence currents is provided ?

Generators

Motors

Transmission line

Transformers

Detailed SolutionFor which of

the following protection from negative sequence currents is provided ?

94. In Railway applications ______ circuit breaker is used.

SFe

bulk oil

minimum oil

air break

Join Our Telegram Channel

47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube

href="https://exam.pscnotes.com/mcq/in-railway-applications-______-circuit-breaker-is-used/#more-42915">Detailed Solution

Page 1 Page 2 Page 3 Page 4 Page 5

Exit mobile version